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Year Vol.
(Issue) Pages Author(s) Title

1978 1(1) 27 Thomas B. Croat Dr. Eizi Matuda
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ABSTRACT: The world of aroid lovers mourns the death of Dr. Eizi Matuda, Senior Curator of the Instituto de Biologia at the Universidad Nacional Autonoma de Mexico in Mexico City. Dr. Matuda, a long time expert in Araceae died February 12, in Peru, while on a field trip following the Second Latin American Botanical Congress in Rio de Janeiro.

1978 1(2) 54-57 Thomas B. Croat A new Anthurium from Panama (Buy)
ABSTRACT: Anthurium dressleri sp. nov. is described.

1979 2(1) 15-25 Thomas B. Croat, George S. Bunting Standardization of Anthurium descriptions (Buy)
ABSTRACT: A standardization of terminology for both new species descriptions and for floristic treatments would benefit other aroid workers as well as the general users of these works, since complete and uniform descriptions allow for more accurate comparisons. Furthermore, it is necessary to define the many special terms which are necessary to properly describe the species of An thurium. Some of these terms are used here for the first time, and while they are intended especially for use with Anthurium, many are equally appropriate for describing other genera of Araceae and plants of many other families.

1979 2(1) 30-32 Thomas B. Croat A new Anthurium from Panama
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ABSTRACT: Anthurium canasas Croat sp. nov. is described.

1979 2(3) 78-81 Thomas B. Croat Germination of seeds of Anthurium (Buy)
ABSTRACT: In my attempts to prepare a systematic revision of Anthurium, I have come to appreciate the value of living plants for study and I have consequently been attempting to assemble a more complete living collection of Anthurium. In addition to being used to prepare more complete and accurate descriptions, the plants are useful for associated studies with cytology, anatomy, floral fragrance chemistry and hybridization studies to determine relationships between species.

1979 2(4) 99-108 Thomas B. Croat The aroid collections at the Missouri Botanical Garden (Buy)
ABSTRACT: The Missouri Botanical Garden, which first opened its gates to the public in 1859, is the second oldest botanical garden in the United States, the oldest having been founded by John Bartram in Philadelphia early in the 18th century. Located on more than 70 acres in the heart of St. Louis, it features a large Japanese garden, a climatically controlled geodesic dome for tropical plants and numerous other indoor and outdoor displays. The Garden, long associated with Washington University, and more recently with St. Louis University, the University of Missouri and Southern Illinois University, has been involved in the training of many botanists. Its library with more than 65,000 volumes and its herbarium of about 3 million specimens play an important role in systematic botany and horticulture.

1980 3(2) 54-55 Mark D. Moffler, Thomas B. Croat, Craig Phillips Short communications
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1981 4(3) 91-92 Thomas B. Croat Propagation of Anthurium cuttings
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ABSTRACT: Recent improvement in the success of propagation techniques employed for general aroid collections prompts me to pass on the information to other members. Though I was not trained as a horticulturist, my trial and error procedures in the establishment of thousands of newly introduced aroids over the course of several years has of necessity educated me. Although I am still not satisfied with my loss rate, there has been so much improvement that I feel compelled to pass on this information in hopes of inducing others to report on successful propagation techniques.

1982 5(1) 13-25 Thomas B. Croat A study of Old World aroids (Buy)
ABSTRACT: There are two major centers of distribution, the Americas, with 35 endemic genera and Asia with 34 endemic genera. Despite this almost equal distribution of genera between the two areas, there are great differences in species richness. For example, about 1350 described species or 55% of the total for the family are restricted to tropical America. My recently acquired experience with distri bution of Araceae in the Old World tropics leads me to believe that real percentages will be even greater for the American tropics. A recently completed four month long field trip to Australia, southeast Asia and Africa allowed me to compare the aroids in these areas with those in the areas visited during the last 17 years in tropical America.

1982 5(2) 37-46 Thomas B. Croat Aroid collecting in western South America (Buy)
ABSTRACT: I set off on my trip to western South America. I began in Ecuador and continued through Peru and returned by way of Colombia. In all, nearly two thousand aroids were collected and sent back alive. Herbarium specimens, notes and photographs were accumulated as well. My principal objective on the three month trip was to locate as many members of the bird's-nest Anthurium group as possible. Thus the search for this group (technically, section Pachyneurium) set the basic itinerary of the trip.

1983 6(2) 39-41 Thomas B. Croat A new species of ornamental Philodendron (Araceae)
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ABSTRACT: Philodendron davidsonii Croat, sp. nov. is described.

1983 6(3) 68-70 Thomas B. Croat Heinrich Gustav Adolph Engler
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ABSTRACT: It's difficult to contemplate aroids without thinking of the amazing productivity of Adolph Engler. Aside from H. C. Schott (Aroideana, Vol. 1 [3]), no other worker is so clearly association with the aroid family. His active writing on Araceae spanned 42 years beginning in 1878 with the publication of the Araceae of Brazil in Martius' Flora Brasiliensis and ending 1920 with the completion of a monographic treatment of the entire aroid family. The latter work published in Das Pflanzenreich was the last comprehensive treatment of the family. All together it describes about 1,800 species in 108 genera. The work, though now out of date, still stands as a monument to his untiring efforts.

1983 6(3) 85-123 Thomas B. Croat, Richard D. Sheffer The sectional groupings of Anthurium (Araceae) (Buy)
ABSTRACT: In order to conduct a successful hybridization with Anlhurium it is necessary to have some understanding of the inter-relationships among different species of Anlhurium. This paper will introduce the sectional classification of the genus to you and will detail some examples of inter-sectional crosses that have proven successful. Others, where no success has yet been achieved, will also be reported.

1983 6(4) 132-134 Thomas B. Croat The origin of Anthurium leuconeurum
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ABSTRACT: The name Anthurium leuconeurum has been in use by horticulturists since 1862 when a plant, believed to have been collected in southern Mexico by Auguste Boniface Ghiesbrecht, was described by the French botanist Charles Lemaire. The plant apparently flourished in European botanical garden hothouse collections for a period of about seven decades. A number of herbarium collections were prepared and placed in herbaria at Kew Gardens, Geneva, Paris and elsewhere; most of these collections were made before 1895. The last such herbarium collection I've seen was prepared in 1935 at the University of Coimbra, Portugal, by L. W. Carrisso and deposited at the Kew Herbarium.

1984 7(1) 12-13 Thomas B. Croat Rediscovery of a rare Monstera
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ABSTRACT: Monstera gracilis Engler is illustrated here and some additional information is reported to further augment the description.

1984 7(1) 18-20 Thomas B. Croat Aroid profile no. 9 Philodendron rugosum Bogner & Bunting
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ABSTRACT: Philodendron rugosum Bogner & Bunting, Willdenowia 13: 183-185. 1983. a member of section O/igospermum, is known only from Ecuador in a premontane rain forest life zone in the Province of Pastaza at elevations of 1,000 to 1,700 meters. It is distinguished from any other known species by its thick, broadly ovate leaves which are finely etched on the upper surface in the manner of an upholstery fabric commercially known as "naugahyde." Others have referred to this feature as "pigskin."

1984 7(1) 27-30 Thomas B. Croat The importance of labeling living plants (Buy)
ABSTRACT: Though I have made successful appeals to many members of the International Aroid Society personally in the past few years, I would like to make an appeal here to the entire membership concerning the importance of marking live collections.

1985 8(1) 12-13 Thomas B. Croat Aroid workshop at Harvard Forest
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ABSTRACT: The second, in what is hoped to be a continuing series of meetings dealing with research on aroids, was held at Harvard Forest in Petersham, Massachusetts during the weekend of May 25-27th. The first such meeting was sponsored by the Marie Selby Botanical Garden in March of 1980 and was arranged by Mike Madison. The recent meeting at Harvard Forest, a research branch of Harvard University, was arranged by Dr. P. B. Tomlinson and Dr. J. French.

1985 8(1) 28 Thomas B. Croat New book on African Araceae
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ABSTRACT: A recent French language publication by Marianne Knecht entitled "Aracees de la Cote d 'Ivoire" is an important publication dealing with African Araceae.

1985 8(3) 80-82 Thomas B. Croat A new collection of the rare Alloschemone occidentalis (Poepp.) Engl. & Krause
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ABSTRACT: A recent collection by Timothy Plowman and associates made in December 1982 on the Projecto Flora Project under the auspices of the New York Botanical Garden in Brazil has proven to be the rare Alloschemone occidentalis.

1985 8(3) 94-97 Thomas B. Croat Aroid profile no. 10. Taccarum weddellianum (Buy)
ABSTRACT: Taccarum weddellianum Brongn. ex Schott, ranges from southern Brazil (Acre, Matto Grosso) to Bolivia and Paraguay, occurring in seasonally dry habitats, where the plants Croat 95 lose their solitary leaf during all or part of the dry season.

1985 8(3) 98 Thomas B. Croat New books on Cryptocoryne
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ABSTRACT: A recent German language publication by Niels Jacobsen entitled "Cryptocorynen" is an important addition to the understanding of this important aquatic genus which has always been a favorite of aquatic plant growers and fans of aquaria.

1985 8(4) 103 Thomas B. Croat Photograph: Anthurium sp.
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1985 8(4) 118-137 Thomas B. Croat The Anthurium bredemeyeri complex (Araceae) of Venezuela and Columbia (Buy)
ABSTRACT: Anthurium bredemeyeri Schott. a Venezuelan endemic in Section Xialophyllium. is redefined and redescribed. Five additional species. all members of Section Porphyrochitonium and previously confused with A bredemeyeri. are described as new. These are A bemardii. AJemandezii, A gehrigeri. A gonzalezii. and A smithii.

1986 9(1) 3-213 Thomas B. Croat, Nancy Lambert The Araceae of Venezuela (Buy Back Issue)
ABSTRACT: An illustrated treatment of 171 Venezuelan Araceae taxa is provided. Discussion of range, species characteristics and distinction from similar or closely related species is made for each taxon. Sixteen species, three subspecies and one variety are described as new, and three new combinations are made.

1987 10(1) 20-22 Thomas B. Croat, Josef Bogner Aroid profile no. 11: Syngonium steyermarkii Croat
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ABSTRACT: Syngonium steyermarkii Croat is endemic to the Pacific slope of Guatemala and Southern Mexico at elevations above 1100 m. It was first collected by Dr. Julian Steyermark (Missouri Botanical Garden), who made three sterile collections of the species in three different Departments of Guatemala (Quezaltenango, San Marcos, and Suchitepequez) while collecting for the Field Museum in 1941 and 1942.

1988 11(3) 4-55 Thomas B. Croat Ecology and life forms of Araceae (Buy Back Issue)
ABSTRACT: The most interesting aspect of the family's ecology is the diversity of adaptive life forms. These range from submerged to free-floating, and emergent aquatics to terrestrial plants and to epilithic or epiphytic forms which may be true epiphytes or hemiepiphytic (growing on trees but rooted in soil). Hemiepiphytism is diverse itself, with some species beginning their lives as terrestrial seedlings, then growing skototropically (toward darkness) until they arrive at the nearest suitable tree ( usually a relatively large one which casts a darker shadow) where a physiological change takes place allowing them to grow toward light (Strong & Ray, 1975). They grow as appressed epiphytes on trees or as vines in the canopy. Others begin their lives as true epiphytes, some reconverting to hemiepiphytes by producing long, dangling roots contacting the forest floor below.

1989 12(1) 6-8 Thomas B. Croat Ecology and life forms of Araceae: A follow-up
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ABSTRACT: This paper deals with new information concerning the ecology and life forms of Araceae that has come to light since the publication of "Ecology and Life Forms of Araceae," in Aroideana Volume 11 (3-4). 1988 (990). Also included are corrected errors in that article.

1990 13(1) 44-63 Thomas B. Croat A comparison of aroid classification systems (Buy)
ABSTRACT: The paper compares four systems of classification of the Araceae: Engler's original (1905-1920), M. Hotta's (1970), J. Bogner and D. Nicolson's On press) and M. Grayum's (1990). All are compared against the backdrop of the traditional system of classification by Adolf Engler and against each other.

1991 14(1) 8-13 Thomas B. Croat Aroid encounters in Europe (Buy)
ABSTRACT: During six weeks in early winter and late spring of 1991, I made a trip to a number of botanical gardens and herbaria in Europe to study Araceae and to meet with various aroid colleagues.

1991 14(1) 20-67 Thomas B. Croat, Kay Rossman Index to Aroideana volumes 1-10 (Buy)
ABSTRACT: The index is divided into four parts: (1) Subject Index; (2) Author Index; (3) Article Titles Index; and (4) Index to Botanical Names.

1992 15 22-24 Thomas B. Croat Fourth Aroid Conference--Moscow 1992
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ABSTRACT: Though a number of people were interested in Araceae and had been working independently on the family Araceae since the early 1960s no organized meeting of aroid specialists was held before the founding of the International Aroid Society in Miami. That organization was founded on June 17, 1977. Little research had been carried out on the family since Adolf Engler's epoch studies around the turn of the century. The initiation of the International Aroid Society and the onset of publication of the journal Aroideana, instigated primarily through the efforts of its first editor, Michael Madison, have brought great progress in investigation of the Araceae.

1994 17 5-6 Thomas B. Croat Aroid conference at International Botanical Conference in Yokohama
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ABSTRACT: On Friday, September 3, 1993, an aroid conference entitled "Multidisciplinary Approaches to the Systematics ofthe Araceae" was held during the XV International Botanical Congress held in Conference Center of Pacifico, Yokohama. The botanical congress was held between August 28th and September 3rd and had participants from all parts of the world.

1994 17 33-60 Thomas B. Croat Taxonomic status of neotropical aroids (Buy)
ABSTRACT: While the Paleotropics has more genera than the Neotropics (60 versus 36) the latter area contains roughly twothirds the species of the world's Araceae. Our level of knowledge of the systematics of the neotropical Araceae varies greatly from area to area, owing largely to recent revisionary work or to the interest and area concentrated on by particular workers.

1995 18 28-31 Thomas B. Croat, Li Heng VI International Aroid Conference in Kunming (Buy)
ABSTRACT: The VI International Aroid Conference was held at Kunming in Yunnan Province in southern China between June 26 and July 1, 1995. The conference was well attended with 80 Chinese participants and 30 participants from Hong Kong and 10 other countries. These were India, Singapore, Thailand,Japan, South Africa, Croatia, Switzerland, Germany, England, and the United States.

1995 18 46-148 Thomas B. Croat, Jimena Rodriguez de Salvador Contributions to the Araceae Flora in northwestern Pichincha Province (Buy Back Issue)
ABSTRACT: This is the first in a planned series of local florulas leading to the complete revision of the Araceae for Ecuador. The ENDESA reserve, operated by the Universidad Catolica is located in central Ecuador in an area of Premontane rain forest. The flora, now known to have 76 species of Araceae is still poorly known except for Anthurium, the subject of this revision. Thirty-two species of Anthurium are treated. Ten new species and one new variety are described. New taxa are Anthurium balslevii Croat &J. Rodriguez, A. cabuyalense Croat & J. Rodriguez, A. cupulispathum Croat & J. Rodriguez, A. hebetatilaminum Croat &J. Rodriguez, A. jaramilloi Croat & J. Rodriguez, A. jimenae Croat, A. magnifolium Croat & J. Rodriguez, A. nigropunctatum Croat & J. Rodriguez, A. pulverulentum Sodiro var. adsimile Croat & J. Rodriguez, A. rodrigueziae Croat, and A. silanchense Croat & J. Rodriguez. One new combination is made, Anthurium propinquum Sodiro var. albispadix Croat & J. Rodriguez.

1997 20 48-52 Van Du Nguyen, Thomas B. Croat A new species of Typhonium (Araceae) from Vietnam (Buy)
ABSTRACT: The paper describes a single new species of Typhonium, T. buense Nguyen Van Dzu & Croat. It is believed to be endemic to Vietnam. The principle author, Nguyen Van Dzu, has been engaged in studies of the Araceae of Vietnam for several years; he conducted field work with the second author in Vietnam in 1995. A recent collection of Typhonium made by the principle author has proven to be new to science.

1998 21 26-145 Thomas B. Croat History and current status of systemic research with Araceae (Buy Back Issue)
ABSTRACT: This paper will cover all systematic and floristic work that deals with Araceae which is known to me. It will not, in general, deal with agronomic papers on Araceae such as the rich literature on taro and its cultivation, nor will it deal with smaller papers of a technical nature or those dealing with pollination biology. It will include review papers on technical subjects and all works, regardless of their nature, of current aroid researchers. It is hoped that other reviews will be forthcoming which will cover separately the technical papers dealing with anatomy, cytology, physiology, palenology, and other similar areas and that still another review will be published on the subject of pollination biology of Araceae and the rich literature dealing with thermogenesis.

2000 23 19-25 Thomas B. Croat, B. Cosgriff VIII International Aroid Conference at Missouri Botanical Garden (Buy)
ABSTRACT: The VIII International Aroid Conference was held at the Missouri Botanical Garden in St. Louis from August 9 to August II. The conference was organized by Tom Croat of the Missouri Botanical Garden and Peter Boyce of the Royal Botanic Gardens, Kew.

2000 23 26-30 Thomas B. Croat, M. A. PÃ©rez-Farrera A new record of Anthurium sarukhanianum (Araceae) to Chiapas (Buy)
ABSTRACT: Antburium sarukhanianum Croat & Haager is recorded for Chiapas, Mexico. It is most closely related to A. balmoorei from west central Mexico but is similar to A. schlechtendalii. It differs from the former principally in the shape of its spadix and the petiole cross-sectional shape. It differs from A. scblecbtendalii by the shape of the spadix and spathe, by berry color and by the shape of the petiole and apex of blade. The record of A. sarukbanianum in Chiapas constitutes a considerable range extension from the only site previously known in the state of Guerrero in west central Mexico. Fruit color is reported for the A. sarukbanianum for the first time. The species produces yellow-orange berries similar to the yellow berries of A. balmoorei; another species in section Pacbyneurium from western Mexico.

2002 25 36-43 Thomas B. Croat, B. Feuerstein Ulearum donburnsii (Buy)
ABSTRACT: Ulearum donburnsii, a new species of Araceae, is described from the Amazon lowlands of Ecuador along the RIO Morona in the Province of Morona-Santiago. The species is only the second species in the genus Ulearum. The species differs from the only other species, Ulearum sagittatum Engl., by having filiform staminodes on the spadix on either side of the staminate portion of the spadix, in contrast to the depressed globose or short, cylindric staminodes present in Ulearum sagittatum.

2002 25 60-62 J. Jacome, Thomas B. Croat Notes on Monstera minima Madison (Araceae) in Columbia and Panama
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ABSTRACT: Monstera minima is a species described by M. Madison (977) based on a specimen collected by J. A. Duke and had not been recollected until recently. During an aroid inventory (Mora et aI., in press), and study of vertical distribution of epiphytic aroids in forest on the Pacific coast of Choco (Jacome, unpubl. data) individuals of Monstera minima were collected. This species was previously only known from the type specimen in Panama in the Comarca de San BIas and was considered endemic to that country (Madison, 1977).

2002 25 63-66 Thomas B. Croat, S. J. Mayo, Julius O. Boos A new species of Brazilian Philodendron subgenus Meconostigma (Araceae) (Buy)
ABSTRACT: Philodendron xanadu is described as new. It represents an interesting member of section Meconostigma but differs from other members of that subgenus by its nearly complete lack of posterior lobes and its weakly developed posterior ribs.

2003 26 2-9 Thomas B. Croat, C. C. Finch New species of Anthurium (Araceae) from Colombia (Buy)
ABSTRACT: Thirty-five years of collecting in Colombia has turned up many species new to science. The now more well-established of these are described for the first time here. Three species are described as new, Anthurium anchicayense Croat, Anthurium cogolloanum Croat & M. M. Mora, and Anthurium salgarense Croat.

2003 26 10-15 E. Melendez-Lopez, M. A. PÃ©rez-Farrera, Thomas B. Croat Additional notes on Anthurium rionegrense Matuda: Morphology (Buy)
ABSTRACT: The type locality of Anthurium rionegrense is rediscovered and additional information about its morphology, habitat and distribution is presented. This species is a rupiculous plant with a large branched stem. It ranges from 500 to 650 m elevation, occurring in deciduous and semideciduous tropical forests near the borders of the Mexican states of Chiapas and Oaxaca. A new collection locality is also presented.

2004 27 2-37 Thomas B. Croat, L. P. Hannon Chlorospatha of Antioquia (Colombia) (Buy)
ABSTRACT: This paper treats all the species of Chlorospatha from the Department of Antioquia in Colombia. A total of 8 new species are described, all of which are endemic to Colombia. These are C. amalfiensis Croat & L. Hannon, C. antioquiensis Croat & L. Hannon, C. betancurii Croat & L. Hannon, C. callejasii Croat & L. Hannon, C. cogolloi Croat & L. Hannon, C. luteynii Croat & L. Hannon, C. macphersonii Croat & L. Hannon and C. nicolsonii Croat & L. Hannon. Four additional previously described taxa (3 species; 1 subspecies) occur in Antioquia, namely C. corrugata Bogner & Madison, C. gentryi Grayum, C. mirabilis (M. T. Masters) Madison, and C. croatiana Grayum ssp. enneaphylla Grayum, and are included in a key to the species in Antioquia.

2004 27 38-60 Thomas B. Croat, C. C. Finch New species of Philodendron (Araceae) from South America (Buy)
ABSTRACT: The following new species are described: Philodendron aureimarginatum Croat, P. campii Croat, P. clarkei Croat, P. moonenii Croat, P. paucinervium Croat, P. sparreorum Croat and P. werkhoveniae Croat.

2004 27 61-63 Thomas B. Croat, X. Cornejo New species of Anthurium from western Ecuador
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ABSTRACT: Two species of Anthurium are described as new to science. The new species are A. churutense Croat & X. Cornejo and A. colonchense Croat & X. Cornejo, both members of Anthurium section Porphyrochionium.

2004 27 64-89 Thomas B. Croat, B. Oberle New species of Araceae from Colombia (Buy)
ABSTRACT: The following taxa from the Colombia, mostly from the Department of Antioquia, are described as new to science: Anthurium acanthospadix Croat & Oberle, A. atramentarium Croat & Oberle, A. chrysolithos Croat & Oberle, A. hodgei Croat, Oberle & Mora, A. johnmackii Croat & Oberle, A. licium Croat & Oberle, A. macphersonii Croat & Oberle, A. modicum Croat & Oberle, A. silverstonei Croat & Oberle, A. soejartoi ssp. soejartoi Croat & Oberle, and A. soejartoi ssp. ascendens Croat & Oberle, A. subaequans Croat & Oberle, and Philodendron danielii Croat & Oberle.

2004 27 90-129 Thomas B. Croat, M. Marcela Mora New taxa of Araceae from Cabo Corrintes in Choco Department of Colombia (Buy)
ABSTRACT: New species of Araceae are described from the Estacion Biological El Amargal and vicinity on Cabo Corrientes in Choco Department of Colombia. These are Anthurium acutibacca Croat & M. Mora, A. amargalense Croat & M. Mora, A. arusiense Croat & M. Mora, A. debilis Croat & Bay, A. eminens Schott, ssp. longispadix, Croat & M. Mora, A. galeanoae Croat & M. Mora, A. grandicataphyllum Croat & M. Mora, A. morae Croat, A. pallidicaudex Croat & M. Mora, A. promininerve Croat & M. Mora, A. variilobum Croat & M. Mora, Monstera amargalensis Croat & M. Mora, Philodendron amargalense Croat & M. Mora, P. laticiferum Croat & M. Mora, P. longipedunculatum, Croat & M. Mora, P. roseocataphyllum Croat & M. Mora, Rhodospatha monsalvae Croat & Bay and Xanthosoma daguense Engl. var. amargalense Croat & M. Mora.

2004 27 130-138 Thomas B. Croat, Richard P. Wunderlin New taxa of Homalomena (sect. Curmeria) from the neotropics (Buy)
ABSTRACT: Two new species and one new subspecies of Homalomena sect. Curmaria are described and characterized. These are Homalomena erythropus ssp. allenii Croat, H. kvistii Croat, and H. moffleriana Croat & Grayum.

2004 27 139-141 Thomas B. Croat, F. Cardona N. New species of Spathiphyllum (Araceae) for Panama and Colombia
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ABSTRACT: Spathiphyllum dressleri Croat & F. Cardona, from Panama and Colombia is described as new. The species is characterized by its stubby, light green spadix.

2005 28 49-51 Thomas B. Croat, J. Chaparra A new endemic species of Anthurium (Araceae) from Brazil
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ABSTRACT: Anthurium curicuriariense Croat is described as new. The new species is a member of section Calomystrium, and is a narrow endemic known only from Cerro Curicuriari in northern Amazonas Department of Brazil near the Rio Negro.

2005 28 52-64 Thomas B. Croat, Rick Cirino A review of the Anthurium splendidum complex (Araceae) (Buy)
ABSTRACT: A revision is made of five closely related species in Anthurium section Cardiolonchium from Western Colombia. Anthurium splendidum Hort. ex W. Bull is reported to be rediscovered, since in its original description in 1883 no known province was cited. One member of this complex, A. debilis Croat & Bay, was recently published. Three additional new species closely related to, or previously confused with A. splendidum, are described. These are A. giraldoi Croat, A. luxurians Croat & Cirino, and A. nutibarense Croat.

2005 28 65-68 Marcus A. Nadruz Coelho, Thomas B. Croat A new species of Anthurium from Brazil (Buy)
ABSTRACT: A new species of Anthurium is described. The new species is Anthurium santaritensis Nadruz & Croat, belonging to section Pachyneurium. It is endemic to the Brazilian State of Minas Gerais, and is compared with Anthurium solitarium Schott.

2005 28 69-80 Thomas B. Croat, J. S. LingÃ¡n ChÃ¡vez Rediscovery of rare species of Anthurium (Araceae) from Peru (Buy)
ABSTRACT: In this paper five rare species of Anthurium are redescribed: A. consimile Schott, A. corallinum Poepp. et Endl., A. gracilipedunculatum Krause, A. huanucense Engler, and A. peltatum Poepp.

2005 28 81-85 J. Jacome, Thomas B. Croat Rediscovery of Anthurium gustavii Regel and Anthurium metallicum Linden ex Schott (Araceae) in Columbia (Buy)
ABSTRACT: Anthurium gustavii Regel and A. metallicum Linden ex Schott, both previously poorly known taxonomically and phytogeographically, are redescribed based on new information.

2005 28 86-87 Thomas B. Croat, G. C. Fernandez-Concha, L. I. Gonzalez Montrichardia arborescens (L.) Schott (Araceae) newly reported for Mexico
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ABSTRACT: The genus Montrichardia, represented by M. arborescens is reported for the first time in Mexico.

2006 29 86-90 Thomas B. Croat, David Scherberich, Genevieve Ferry A new species of Anthurium (Araceae) from Loreto (Buy)
ABSTRACT: Anthurium barrieri, a new species of section Leptanthurium is described as new. The species, closely related to A. gracile (Rudge) Schott, is only the second species described for section Leptanthurium. It is distinguished from A. gracile by its erect inflorescences, yellowish spadices with more flowers per spiral, larger lobed flowers, proportionately broader leaf blades and sulcate petioles.

2006 29 104-107 Van Du Nguyen, Thomas B. Croat A new species of Hapaline (Araceae) from Vietnam (Buy)
ABSTRACT: Hapaline loci, a species, new to the genus, is described from northwest Vietnam.

2006 29 161-165 Thomas B. Croat, Carla V. Kostelac Karl Koch's career with Araceae and his connection with America: Family photo of Karl Koch found with relative in St. Louis (Buy)
ABSTRACT: The German Karl Heinrich Emil Koch was born 6 June 1809, near Weimar in the Duchy of Sachsen-Weimar-Eisenbach, and died 25 May 1879. He studied medicine and natural sciences in Jena and in Wurzburg. According to a memoir written by Koch's wife, Therese Koch (T. Danzer, pers. comm.), Karl Koch was befriended by the writer, Johann Wolfgang von Goethe, as a young boy, and Goethe encouraged his plant studies. Koch had broad interests including zoology, geology and geography, anthropology, archeology and history but his main interest was with botany, especially horticulture, dendrology and the origin of fruit trees (Edmundson & Lack, 1977).

2006 29 Inside back cover Thomas B. Croat Corrections in publication: Anthurium nutubarense
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2007 30 19-22 Thomas B. Croat, J. JosÃ© Castillo Mont, Jay Vannini A new endemic species of Anthurium sect. Pachyneurium (Araceae) for Guatemala (Buy)
ABSTRACT: A new endemic species of Anthurium section Pachyneurium , newly discovered in Guatemala, is compared with other species in the section. The species is unique among all Anthurium section Pachyneurium in having green berries.

2007 30 23-37 Thomas B. Croat, Jane Whitehill, Emily D. Yates A new subsection of Anthurium section Calomystrium (Araceae) and five new species from Columbia and Ecuador (Buy)
ABSTRACT: Subsection Rupicola, a new subsection of Anthurium section Calomystrium is proposed, encompassing nine rupicolous species. Descriptions and a key are provided for these species including: A. antrophyoides Killip, from Ecuador and Colombia, A. chocoense Croat and A. antioquiense Engler from Colombia, as well as A. amnicola Dressler, and A. sytsmae Croat from Panama. Five species, A. palacioanum Croat and A. weiffii Croat from Ecuador, and A. chocoense Croat, A. callejasii Croat, and A. vanderknaapii Croat, from Colombia, are described as new. Members of this group were previously thought to belong in section Porphyrochitonium because of their generally lanceolate leaf blades, and stems with short internodes. However, lack of distinct glandular punctations on blade surfaces and the ability to interbreed readily with other members of section Calomystrium indicate that this new group belongs in section Calomystrium, and has evolved without conspicuous posterior lobes typical of section Calomystrium, owing to their rupicolous habitat.

2008 31 25-42 Thomas B. Croat, David Wolfersberger, Carla V. Kostelac New species of Araceae from Western Ecuador (Buy)
ABSTRACT: Nine new species of Anthurium (Araceae) are described and illustrated: Anthurium alluriquinense Croat, A. fosteri Croat, A. iltisii Croat, A. lojtnantii Croat, A. pescadilloense Croat, A. pucayacuense Croat, A. samamaense Croat, A. sebastianense Croat and A. ventanasense.

2008 31 43-56 Thomas B. Croat, X. Delannay, Carla V. Kostelac New species of Araceae from Ecuadorian Amazonia (Buy)
ABSTRACT: Six new species of Araceae from the Amazon basin in Ecuador are described as new to science, Anthurium chacoense Croat, A. cuyabenoense Croat, A. dolichocnemum Croat, A. effusispathum Croat, A. ionanthum Croat and A. longiusculus Croat.

2008 31 57-84 Thomas B. Croat, L. Brossart, Carla V. Kostelac A revision of the 3-segmented species of Anthurium Sect. Dactylophyllium (Araceae) (Buy)
ABSTRACT: Anthurium sect. Dactylophyllium have leaf blades palmately divided into segments divided to the base and and may have 0-) 3-15 segments. Those species with 3 or fewer segments are revised here and a key is provided. Anthurium arisaemoides, A. cutucuense, A. huacamayoense, A. moonenii, A. thrinax, A. triphyllum, A. trisectum, A. warintsense and A. zuloagae.

2008 31 148-154 A. Haigh, L. Lay, S. J. Mayo, L. Reynolds, M. Sellaro, Josef Bogner, Peter C. Boyce, Thomas B. Croat, Michael H. Grayum, R. Keating, Carla V. Kostelac, Alistair Hay, Wilbert L. A. Hetterscheid, M. Marcela Mora A new website for Araceae taxonomy on www.cate-araceae.org (Buy)
ABSTRACT: The development and current progress of the Cate-Araceae website is described and its relation to the aroid community discussed in the context of rapidly developing initiatives to migrate traditional descriptive taxonomy onto the internet (ETaxonomy).

2009 32 30-122 Thomas B. Croat, Pu Huang, J. Lake, Carla V. Kostelac Araceae of the flora of Reserva La Planada, NariÃ±o Department, Colombia (Part 1) (Buy Back Issue)

2009 32 183 Thomas B. Croat Review of "Cryptocoryne of Peninsular Malaysia" by Ahmad Sofiman Othman, Niels Jacobsen & Mashhor Monsor
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2010 33 75-142 Thomas B. Croat, Pu Huang, J. Lake, Carla V. Kostelac Araceae of the Flora of La Planada, Narino Department, Colombia (Part 2) (Buy Back Issue)

2010 33 161-167 Thomas B. Croat, Jay Vannini A Reexamination of Anthurium dressleri Croat (Araceae) and a Description of a New Species of Anthurium Schott from Panama (Buy)

2011 34 37-44 Thomas B. Croat, Lille Marleen Calderon, Carla V. Kostelac New Species of Anthurium (Araceae) from Ecuador (Buy)
ABSTRACT: Three species of Anthurium (Araceae) are described as new to science; Anthurium boosianum Croat, A. genferryae Croat and A. marleenianum Croat.

2011 34 45-63 Thomas B. Croat, Keith Lee, Whitney Wodstrchill, Carla V. Kostelac New Species of Anthurium (Araceae) from South America (Buy)
ABSTRACT: Eleven new species of Anthurium (Araceae) are described as new: Anthurium apiaense Croat, A. aylwardianum Croat, A. benktsparrei Croat, A. bicordoense Croat, A. diversicaudex Croat, A. mapiriense Croat, A. molaui Croat, A. porcesitoense Croat, A. punkuyocense Croat, A. riojaense Croat, and A. straminopetiolum Croat. All are members of section Cardiolonchium, except two of the species, A. bicordoense and A. porcesitoense, which are members of section Xialophyllum. Five of the new species are from Peru but A. apiaense, A. bicordoense and A. porcesitoense are from Colombia and A. benktsparrei, A. diversicaudex and A. molaui from Ecuador.

2012 35 29-34 Thomas B. Croat, David Scherberich, Genevieve Ferry, M. Marcela Mora Two new species of Philodendron (Araceae) from Amazonian Peru (Buy)
ABSTRACT: Two new species of Philodendron, P. bicolor and P. pierrelianum (Araceae) are described and illustrated.

2012 35 65-71 Thomas B. Croat, James J. Grib, Carla V. Kostelac New Species of Philodendron (Araceae) in the Guianas (Buy)
ABSTRACT: Three new species of Philodendron (Araceae) are described and illustrated from the Guianas including, P. ayangannense Croat and P. kaieteurense Croat that are from Guyana and P. pokigronense Croat that is from Suriname.

2012 35 72-79 Thomas B. Croat, Noel Altamirano, Ann Grace, Carla V. Kostelac New species of Araceae from the South American Andes (Buy)
ABSTRACT: Four new species are described as new to science: Anthurium mateoi Croat & Altamirano, A. monteagudoi Croat & Altamirano, A. rodvasquezii Croat and A. valenzuelae Croat & Altamirano (Cuzco Department, Peru).

2012 35 80 Thomas B. Croat New name for Anthurium mapiriense Croat sect. Xialophyllium.
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ABSTRACT: A new name is proposed for an illegitimately published name. Anthurium mapiriense Croat in sect. Xialophyllium becomes A. chequitavense Croat.

2013 36 30-55 Thomas B. Croat, E. J. Deal, Nicholas Russell, Carla V. Kostelac New Species of Anthurium (Araceae) from Central America (Buy)
ABSTRACT: A total number of 18 new species of Anthurium section Calomystrium are described as new to science: Anthurium alturaense Croat, A. breviapiculum Croat, A. cascajalense Croat, A. churchilleorum Croat, A. deminutum Croat, A. granulineare Croat, A. guanghuae Croat, A. haltonii Croat, A. henryi Croat, A. horridum Croat, A. ingramii Croat, A. kareniae Croat, A. laminense Croat, A. lilafructum Croat, A. luteospathum Croat, A. penonomense Croat, A. roubikii Croat, and A. suethompsoniae Croat.

2013 36 56-72 Thomas B. Croat, Ann Grace, Carla V. Kostelac New Species of Anthurium (Araceae) from Andean Western South America (Buy)
ABSTRACT: Eleven new species of Anthurium are described and illustrated: Anthurium aromoense Croat (sect. Digitinervium), A. banderasense Croat (sect. Pachyneurium), A. becerrae Croat (sect. Pachyneurium), A. betsyae Croat (sect. Porphyrochitonium), A. donovaniae Croat (sect. Digitinervium), A. imazaense Croat (sect. Pachyneurium), A. magrewii Croat (sect. Pachyneurium), A. paloraense Croat (sect. Pachyneurium), A. quinonesiae Croat (sect. Porphyrochitonium), A. riocojimiesense Croat (sect. Tetraspermium), and A. trujilloi Croat (sect. Pachyneurium). The species are from a broad area of the Andean South America from Colombia to Peru but six of the species: Anthurium aromoense, A. banderasense, A. donovaniae, A. magrewii, A. paloraense and A. riocojimiesense are from Ecuador, while A. becerrae, A. betsyae and A. imazaense are from Peru and A. quinonesiae, and A. trujilloi are from Colombia.

2013 36E(1) 16-70 Thomas B. Croat, James J. Grib, Carla V. Kostelac New Species of Philodendron (Araceae) from South America (Read)
ABSTRACT: Nineteen new species of Philodendron subgenus Philodendron are described and illustrated: P. alonsoae Croat, P. atratum Croat, P. attenuatum Croat, P. caracaraiense Croat, P. caranoense Croat, E. Trujillo & M. Correa, P. davidneillii Croat, P. edwinii Croat & M. Correa, P. genevieveanum Croat, P. grahamii Croat, P. gribianum Croat, P. macarenense Croat, P. marcocorreanum Croat, M. Mora & E. Trujillo, P. linganii Croat, P. meieri Croat, P. pseudoverrucosum Croat, P. ricaurtense Croat, P. sanmarcoense Croat, P. schmidtiae Croat and P. werneri Croat. The new species occur in areas throughout the continent of South America with one species from Brazil, seven from Colombia, three from Ecuador (one of which is likely eventually to be found in Peru, while another may be found to occur in Colombia), five from Peru (one of which might be found in Ecuador), one species ranges from Colombia to Ecuador, three range from Ecuador to Peru and one from Venezuela.

2013 36E(1) 71-75 Thomas B. Croat, Andreas Gr?eger Anthurium chamberlainii Masters (Araceae) Rediscovered (Read)
ABSTRACT: Anthurium chamberlainii Masters, a species described from unknown origin in the late 19th Century is fully redescribed and illustrated providing assurance that the species does indeed originate in Venezuela. A modern and detailed description as well as illustrations are provided. The species is a member of section Belolonchium.

2013 36E(1) 92-98 Thomas B. Croat, Joep Moonen, Juan Mauricio Posada-Herrera Philodendron joaosilvae , a New Species of Philodendron, subgenus Philodendron, section Philodendron (Araceae) from Brazil (Read)
ABSTRACT: A species of Philodendron, subgenus Philodendron, section Philodendron (Araceae) from Brazil, Philodendron joaosilvae Croat, A. Cardoso & Moonen is described as new.

2014 37(1) 95-104 Thomas B. Croat A Review of Anthurium Species with ‘‘Black’’ Spathes (Buy)
ABSTRACT: Species with dark purple-black spathes have been found in several sections, sect. Belolonchium, Calomystrium, Pachyneurium and Polyneurium. Thus the character of a blackish spathe is plesiomorphic. The distribution of species with purple-black spathes is centered on Colombia and Panama. A review of the known species with purplish black spathes is presented and one new species, Anthurium bantanum Croat & J. Deal is proposed. Species with purple-black spathes are A. atramentarium Croat & Oberle, A. bantanum Croat & J. Deal from Antioquia, A. cabrerense Engl, from the Cordillera Central, A. caramantae Engl. from both the Cordillera Occidentale and the Cordillera Central, A. cupreonitens Engl. in Norte de Santander Department in the Cordillera Oriental, A. flavolineatum Sodiro from southern Colombia to Ecuador and A. watermaliense L. H. Bailey & Nash in L. H. Bailey which ranges from Costa Rica to Panama.

2014 37E(1) 29-50 Thomas B. Croat, Ben Friedenberg, Carla V. Kostelac New Species of Philodendron (Araceae) from South America (Read)
ABSTRACT: Nine species of Philodendron (Araceae) are described as new: Philodendron alanbrantii Croat, P. arbelaezii Croat, P. bayae Croat, P. bernardoi Croat, P. bomboizoense Croat, P. brantii Croat, P. camarae Croat, P. candamoense Croat and P. fosteri Croat.

2014 37E(2) 79-87 Thomas B. Croat, Vincent Pelletier, Ludovic Salomon, Jean Weigel New species of Xanthosoma (Araceae) from Western French Guiana (Read)
ABSTRACT: A new species of helophytic Xanthosoma, X. nodosum Croat & V. Pelletier, is reported for western French Guiana. The species is a member of section Xanthosoma and is allied with X. sagittifolium (L.) Schott and X. jacquinii Schott but differs from both of those species by its hydric habit and conspicuously arrayed short knobby rootlike propagules on its stem. In addition, Xanthosoma jacquinii also differs by having a spathe tube which is dark purple on the inside.

2015 38E(1) 44-54 Thomas B. Croat A Review of Studies of Neotropical Araceae (Read)
ABSTRACT: The last decade has seen many changes in research with neotropical Araceae. There have been a lot of revisionary efforts especially with smaller genera but relatively few changes in the largest and most complex genera. Several key floristic studies have been completed and several more are underway. Increasingly phylogenetic studies are being carried out among genera of all sizes. This review will provide a history of past monographic and floristic efforts and will summarize by suggesting the areas most in need of further work.

2015 38E(1) 88-93 Thomas B. Croat, Genevieve Ferry A Preliminary Analysis of Anthurium (Araceae) from Carchi Province, Ecuador (Read)
ABSTRACT: A preliminary survey of Anthurium (Araceae) Carchi Province, Ecuador is provided with a total of 146 named species, including seven taxa and 72 as yet unnamed species. More than 60% of all species are deemed to be new to science. The region is particularly rich in section Cardiolonchium (with 34 species and 2 taxa) and section Calomystrium with 29 species. Both are most abundant at middle to lower elevations. Section Belolonchium with 26 species is especially abundant at higher elevations. Even larger and found at middle to lower elevations is section Polyneurium (38 species), followed by section Porphyrochitonium (20 species) and section Xialophyllium (17 species), section Tetraspermium (6 species totaling 8 taxa); section Digitinervium (with 7 species), section Multinervium (with 12 species) and section Decurrentia (8 species).

2015 38E(1) 107-115 Alejandro Zuluaga, Kenneth Cameron, Thomas B. Croat, Melanie Medecilo Testing the monophyly of Spathiphyllum, and the relationship between Asian and tropical American species. (Read)
ABSTRACT: Mutualistic co-evolution between host plant species of the family Araceae and species-specific pollinator flies of the genus Colocasiomyia (Diptera, Drosophilidae) was observed in wet, tropical to subtropical Southeast Asia. Complicated host-plant routes suggest the adaptive radiations in both Colocasiomyia species and Araceae species. Germination rates of pollen attaching to the pollinator flies were about 70%, while germination rate of collected pollen was often lower, which suggests that the Colocasiomyia flies contribute to the male reproductive success of their host plants.

2015 38E(2) 67-122 Thomas B. Croat, Mackenzie Hempe, Carla V. Kostelac Araceae of Parque Nacional Natural de Las Orquídeas, Colombia (Read)
ABSTRACT: A total of 16 new species of Anthurium are described as new to science: Anthurium abajoense Croat & A. Zuluaga, A. alcogolloi Croat, A. blanquitense Croat, A. curtipendunculum Croat, A. dabeibaense Croat, A. elquincense Croat, A. espiranzaense Croat & A. Zuluaga, A. frontinoense Croat & A. Zuluaga, A. hempeanum Croat, A. juanguillermoi Croat, A. ovidioi Croat, A. pedrazae Croat & A. Zuluaga, A. paloense Croat, A. sneidernii Croat, A. tortuosum Croat, and A. triangulopetiolum Croat.

2016 39(1) 26-315 Thomas B. Croat, X. Delannay, Sloan Duncan, Carla V. Kostelac Revision of Philodendron from the Lita-San Lorenzo Region (Esmeraldas Province, Ecuador) (Buy Back Issue)
ABSTRACT: This paper describes seventy-four species of Philodendron from NW Ecuador, largely from Esmeraldas Province. Twenty-eight species are new to science: Philodendron alatisulcatum Croat, P. alatiundulatum Croat, P. angosturense Croat, P. anthracyne Croat, P. bethoweniae Croat, P. bonifaziae Croat, P. curvipetiolatum Croat, P. delannayi Croat, P. delgadoi Croat & Delannay, P. ellipticum Croat, P. esmeraldense Croat, P. fibraecataphyllum M. M. Mora & Croat, P. gardeniodorum Croat, D. P. Hannon & Delannay, P. hannoniae Croat, P. jimenae Croat, P. luteonervium Croat, P. lynnhannoniae Croat, P. magnum Croat, P. mansellii Croat, P. melanoneuron Croat, P. melanum Croat, P. mentiens Croat & Delannay, P. ovatoluteum Croat, P. pambilarense Croat, P. parvidactylum Croat, P. profundisulcatum Croat, P. quelalii Croat & T. Mines, P. rugapetiolatum Croat and P. sharoniae Croat. In addition to these twenty-eight new species, nine additional unpublished species (all sterile and therefore not published here as new) are also described. One more species included here, P. fibraecataphyllum M. M. Mora & Croat, is in press in another journal. All species are described in detail and illustrated and an identification key is provided.

2016 39(2) 126 Thomas B. Croat, M. Marcela Mora Philodendron apiculatum Croat & M.M. Mora, nomen novum (Araceae)
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ABSTRACT: In a recent article (Croat et al., 2016) a new species from Ecuador was described as Philodendron ellipticum. Later, however, it was discovered by the second author that this name was already occupied by a different species described by Engler (1905). For this reason we are providing a substitute name for the homonym Philodendron ellipticum Croat.

2016 39(2) 134-186 Thomas B. Croat, O.O. Ortiz A Reappraisal of the Anthurium cuspidatum Masters Complex, section Polyneurium (Araceae) (Buy Back Issue)
ABSTRACT: A realignment is made in the circumscription of Anthurium cuspidatum Mast. which has for many years been interpreted as being plants with reddish brown, moderately elongated blades with usually well-developed posterior lobes in contrast to typically green-drying blades which are more broadly ovate and have the basal veins more nearly free to the base. A study of the type specimen of Anthurium cuspidatum shows it to be a plant with broadly ovate green-drying blades with the basal veins nearly free to the base whereas the more narrowly ovate reddish browndrying plants long considered A. cuspidatum have proven to represent four different species: A. talamancae Engl. with leaves more than two times longer than wide and with up to five pairs of basal veins, A. intactum Croat & O. Ortiz sp. nov. with leaf blades less than two times longer than broad with six or more pairs of basal veins, A. christeliae Croat & O. Ortiz sp. nov. with leaf blades attenuated at base and A. palosecense Croat & O. Ortiz sp. nov. with leaf blades rounded to subcordate at base with few basal veins (1–2 pairs). Anthurium propinquum Sodiro var. albispadix Croat & J. Rodr., long considered to be a member of the A. cuspidatum complex and initially considered to be a variety of A. propinquum Sodiro (now a synonym of A. cuspidatum as treated here) is now considered to be distinct at the species level and is here elevated to the species level as Anthurium albispadix (Croat & J. Rodr.) Croat & O. Ortiz. Another close relative to Anthurium talamancae is A. monticola Engl. which is reported for the first time from Panama and included in the key.

2017 40(1) 97-116 Thomas B. Croat, David Belt, Jere Deal New species of Anthurium sect. Calomystrium (Araceae) from Mexico and Panama (Buy)
ABSTRACT: A total of four new species of Anthurium section Calomystrium from Mexico and Panama are described here: A. totontepecense Croat from Mexico and A. hartmanii Croat, A. mikeneei Croat, and A. viridifusiforme Croat, all from Panama.

2017 40(1) 117-149 Thomas B. Croat, Robert Hormell New Central American Species of sect. Andiphilum (Araceae)- the Anthurium silvigaudens Standl. & Steyerm. Complex (Buy)
ABSTRACT: Three closely related species in the newly resurrected section Andiphilum are described and two of them which are new to science are described and compared. The Anthurium silvigaudens complex is restricted to Middle America (Honduras and Guatemala).