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

1978 1(1) 4-10 Simon J. Mayo Aroid-hunting in Bahai (Buy)
ABSTRACT: Despite having been the first area of Brazil to be colonized by the Portuguese, the north-eastern state of Bahia is still poorly-known botanically, particularly in its dry interior region. All the indications are, however, that the flora is very rich, and this applies to the aroids as well as to many other families of plants. Consequently, when in the first three months of 1977 I took part in a Kew expedition to Bahia led by Dr. Raymond Harley, I was particularly keen to refind the many poorly-known Araceae recorded from this region.

1978 1(1) 11-12 Michael Madison On the names of aroids
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ABSTRACT: It would seem useful in this first issue to clarify some aspects of the naming of plants. The latin name of a plant species consists, technically, of three parts which appear in the following order: first the genus, which is capitalized, ego Philodendron; followed by the species, which is not capitalized, ego giganteum; followed by the name of the person who first described the species, in this case H. W. Schott. So the name of this West Indian species is Philodendron giganteum Schott. In orticultural literature the author's name is often omitted.

1978 1(1) 13 Michael Madison Philodendron frits-wentii rediscovered
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ABSTRACT: Recently Timothy Plowman of Harvard University and Helen Kennedy of the Field Museum discovered Philodendron frits-wentii in the wild in Peru, and sent cuttings to the Marie Selby Botanical Gardens where it is now cultivated. The exact locality, in the Dept. of San Martin, is about 500 km from the nearest known station for P. grazielae.

1978 1(1) 14-16 Michael Madison Aroid profile no. 1: Monstera deliciosa
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ABSTRACT: It is appropriate that the first of this series of aroid profiles should depict what is probably the finest foliage plant ever introduced into horticulture - Monstera deliciosa. Well known as a house plant in temperate regions, the species is at its most magnificent out of doors as a rambling vine or climber in tropical localities. Under the best circumstances the leaves are a meter in length with a thick glossy texture and more than a hundred of their characteristic perforations.

1978 1(1) 21-23 Simon J. Mayo The aroid collection of Roberto Burle-Marx
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ABSTRACT: The estate of Roberto BurleMarx is near Guaratiba to the southwest of Rio de Janeiro, beyond the Serra da Pedra Branca and the Restinga da Jacarepagua, and occupies a site stretching from the top of a fairly steeply-sloping hillside to its base. The principal botanical interest of his plant collection, which he has amassed over some 30 years or so, lies in the very rich collections of Araceae, Bromeliaceae, Musaceae, Velloziaceae and Orchidaceae. As regards the Araceae, his collections of Anthurium and Philodendron spp. merit special attention, being not only of Brazilian species but also with good representation from Ecuador, Costa Rica, Panama and other parts of the neotropics in which Sr. Burle-Marx has collected.

1978 1(2) 31-53 Michael Madison The genera of Araceae in the northern Andes (Buy)
ABSTRACT: The north Andean region, which includes Colombia, Ecuador, and Peru, has perhaps the richest flora in the world and is the center of diversity of the family Araceae. The low to middle elevation wet forests of the area abound with aroids which cover the ground, climb up tree trunks, and as epiphytes adorn the outer branches of the trees. Many of our finest ornamental aroids, including Anthurium andreanum, A. crystallinum, Caladium bicolor, and Philodendron erubescens, are derived from this area. The purpose of this paper is to provide a key and brief descriptions of the genera of Araceae of the northern Andes which should enable anyone to identify to genus aroids from the region. The key is also applicable in Central America, but only partly so in the rest of South America where a number of additional genera, principally of the subfamily Aroideae, are found.

1979 2(2) 52-61 Michael Madison Protection of developing seeds in neotropical Araceae (Buy)
ABSTRACT: In flowering plants with animal pollination and seed dispersal the reproductive cycle can be considered to consist of four stages, representing alternating phases of protection and display. In the protective phases immature flowers and fruits are safeguarded from predation and parasitism, while in the display phases pollinators and dispersal vectors are attracted. This alternation of protection and display is accomplished by a variety of mechanisms.

1979 2(3) 67-77 Michael Madison Notes on some aroids along the Rio Negro (Buy)
ABSTRACT: In the fall of 1978 I spent several months collecting plants along the Rio Negro in the western Amazon in connection with the Projecto Flora Amazonas, an ambitious undertaking to prepare a new flora of the Amazon. Although my chief research interests on this expedition were not directed to aroids, I was able to make observations and collections of a number of species.

1979 2(3) 82-94 S. J. Mayo, Graziela M. Barroso A new predate-leaved species of Philodendron from Bahia (Buy)
ABSTRACT: Philodendron leal-costae Mayo et G. M. Barroso, sp. nov is described.

1980 3(1) 13-18 Mark D. Moffler Qualitative observations on tropical aroid cold tolerance (Buy)
ABSTRACT: As winter approaches each year, we all become concerned about protecting our tropical plants, especially those which are the most susceptible to cold damage. The fall of 1978 was mild in Tampa, with temperatures seldom reaching below 100C (500F). The mild fall gave many of us a false sense of security and steps for cold protection were put off until "tomorrow". It wa~ this unfortunate procrastination that lead to a premature study of cold tolerance in aroids. My initial idea was to test several landscape and porch plants for cold susceptibility, but unfortunately, I unintentionally tested 46 different aroids.

1980 3(2) 39-48 Fred Dortort In the forests of Costa Rica (Buy)
ABSTRACT: Not long ago we had the opportunity to travel in Costa Rica for several weeks. We wanted to observe various tropical plants in their habitats, and we hoped that Costa Rica would be a good choice for our project. Aroids were one of the main groups we were looking for, and we found a large number of them.

1980 3(2) 54-55 Mark D. Moffler, Thomas B. Croat, Craig Phillips Short communications
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1981 4(1) 20-22 S. J. Mayo A new species of Philodendron from Trinidad
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ABSTRACT: Philodendron simmondsii Mayo sp. nov. is described.

1981 4(3) 93-101 Anonymous A portfolio of photographs from the collection of Roberto Burle-Marx (Buy)

1982 5(2) 47-59 Michael H. Grayum The aroid flora of Finca La Selva (Buy)
ABSTRACT: Costa Rica is a small Central American nation about the size of Denmark, with a remakable array of climatic regimes, and altitudes ranging from sea level to nearly four thousand meters. One can ascend from semidesert scrub forests on the Pacific slope, up through sodden cloud forests to pa'ramo (a kind of a high altitude chaparral) on the highest peaks, and down again on the Caribbean slope, through alders, elms and oaks, to humid lowlands and rain forests. The plants growing in this multifaceted domain are incredibly diverse, even by tropical standards. Costa Rica boasts nearly twenty-five percent more species of dicots, for example, than the lush tropical isle of Java, and nearly two and a half times as many species of dicot epiphytes (Burger, 1980) - this despite the fact that Java is two and a half times larger than Costa Rica and has yielded fifty percent more herbarium specimens per unit area (Prance., 1978).

1982 5(3) 67-88 Dan H. Nicholson Translation of Engler's classification of Araceae with updating (Buy)
ABSTRACT: When Hooker (1883) was preparing the treatment of Araceae (Aroideae) for the monumental 'Genera Plantarum,' he basically followed the Schottian system, incorporating Engler's (1879) reduction in the number of genera. The first system was "popularized" by Hutchinson (1959) who, with a reversal of the sequence (bisexual genera first), published essentially an English translation of Hooker's latin. Engler (1905-1920), in his monumental 'Das Pflanzenreich', produced his final treatment of the family, including all then known species in nine volumes. This work remains the standard reference for the family as a whole.

1982 5(4) 103-107 David Burnett The problems of names for Araceae: A proposal for hybrid and cultivars (Buy)
ABSTRACT: There are internationally accepted rules for naming plants at all of these levels. Further there are rules for naming hybrids between Genera (there are probably no known intergeneric hybrids in Araceae): Hybrids between species and hybrids between cultivars. Generally species hybrids are to be named by a formula (and, if appropriate, a name) and hybrids between cultivars by a name along the lines of cultivars. What I propose in this article is that we must depart, slightly, from the rules of the Code. What I regard as two slight departures may seem, to some, as major. This is a matter for the members to decide.

1982 5(4) 116-121 Robert R. White Panama west (Buy)
ABSTRACT: As Las Cruces lies only a few miles from the border of Panama, the plants found in the adjacent Panamanian highlands are just as much a part of our local flora as are those of Costa Rica. Therein lay the opportunity for two most enjoyable collecting trips to Panama.

1982 5(4) 122 Anonymous Photograph: Philodendron sp.
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1983 6(1) 5-8 Bette Waterbury Tracking down the elusive Philodendron "Santa Leopoldina" (Buy)
ABSTRACT: Probably the most controversial, sought after aroid by collectors - and the most elusive - is Philodendron "Santa Leopoldina." Determined to obtain it, my favorite collecting buddy Dorothy Henkle and Jean Pasko from California and I set out for Brazil in May.

1983 6(1) 31 Anonymous Errata
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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(2) 59 David Prudhomme Photograph: Philodendron sodiroi
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1983 6(4) 160 Joe Wright Queries
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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) 31 David Prudhomme Photograph: Philodendron sp. origin unknown
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1984 7(2) 61 Dewey E. Fisk Photograph: Philodendron grazielae
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1985 8(1) 31 David Prudhomme Photograph: Phlodendron [sic] corcovadense
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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(2) 4-16 Josef Bogner Morphological variation in aroids (Buy)
ABSTRACT: The Araceae or aroid., are a large family of about 2400 species, grouped in 107 genera and these again in nine subfamilies. The aroids are mainly a tropical family and are distributed world-wide. They show great variation in their morphological characters, which will be described in this paper along with some other data.

1987 10(2) 17-19 R. Hegnauer Phytochemistry and Chemotaxonomy of the Araceae
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ABSTRACT: Many Aroids taste painfully acrid and are toxic. Nevertheless the family yields a number of tropical food crops and many ornamental plants. Phytochemistry and chemotaxonomy of Aroids is discussed.

1987 10(4) 22 Helen Young Aroid Observations: Philodendron rothschuianium
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ABSTRACT: Helen Young provided this photograph taken at La Selva Biological Station, Costa Rica, of the inflorescence of Philodendron Rothschuianum showing scarab pollinators, Cyclocephala kaszabi, and hemiotera (true bugs) in the family Miridae.

1988 11(1) 22-24 Craig Phillips Some tips on totems and wire hangers
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ABSTRACT: Since I am primarily interested in vining aroids such as Monstera, Raphidophora, Philodendron, etc. , I have as a matter of course become involved with pots, hangers, fern root totems, and the paraphernalia required for their assembly and maintenance. Over a decade of trial and error I have developed a few innovations which may be of some help or interest to others.

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.

1993 16 5-11 Julius O. Boos, Hans E. Boos Additions to the aroid flora of Trinidad with notes on their probable origins and uses (Buy)
ABSTRACT: These notes are based on collections and observations commencing in July 1988, when the senior author visited his homeland. They document recent discoveries of both native and introduced species of aroids and attempt where possible to explain reasons for some of the introductions.

1993 16 37-46 Gitte Peterson Chromosome numbers of the genera Araceae (Buy)
ABSTRACT: An overview of the chromosome numbers of the genera of Araceae is given.

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 32-39 Dorothy C. Bay Thermogenesis in aroids (Buy)
ABSTRACT: Thermogenesis, as it occurs in the plant inflorescence has been observed and studied for over two centuries. At least seven thermogenic families of plants are known including Annonaceae, Araceae, Arecaceae, Aristolochiaceae, Cycadaceae, Cyclanthaceae, and Nymphaeaceae. The sequence of thermogenic events is very precise and highly synchronized in each species. The physiology is not well understood, but the recent identification of salicylic acid as the triggering hormone for thermogenesis has opened the door for further research, especially in the areas of plant signal transduction pathways and systemically acquired resistances. Thermogenesis has proven to be an advantageous process to plants for maximizing pollination and limiting hybridization. Beetle pollinators also benefit from the phenomenon.

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 56-81 C.M. Sakuragui Araceae of campos (Buy)
ABSTRACT: The campo rupestre vegetation is a montane, predominantly herbaceous plant formation that occurs mostly above 800 m. The Araceae, a family with greatest diversity in humid tropical forest habitats, has relatively few species in the Brazilian campos rupestres. However after an intensive fieldwork program a high proportion of species present were found to be new and endemic to the region. In the study ten species were recognized, one (Anthurium montezumense) being new to science. The species recognized are: Anthurium affine, Anthurium minarum, Anthurium montezumense, Anthurium mourae, Philodendron aeutatum, Philodendron adamantinum, Philodendron biribirense, Philodendron cipoense, Philodendron rhizomatosum and Philodendron uliginosum. The work has resulted in the production of keys to the genera and species, descriptions and commentary variously for the species.

2001 24 18-23 Eduardo G. Gonçalves, E. R. Salviani Notes on a wild population of Philodendron spiritus-sancti G. G. Bunting (Philodendron 'Santa Leopoldina') (Buy)
ABSTRACT: One of the most aesthetically desirable species in the genus Philodendron (P. spiritus-sancti G. S. Bunting), commonly known as Philodendron 'Santa Leopoldina' has been rediscovered in the wild in the forests of southeastern Espfrito Santo state, close to the town of Domingo Martins. The species is illustrated and a new description is furnished. Information on its ecology, as well as the conservation status of the species is presented. Philodendron spiritus-sancti is considered in serious danger of extinction because of its restricted range and limited regeneration in the wild.

2002 25 2-15 Eduardo G. Gonçalves, E. R. Salviani New species and changing concepts of Philodendron subgenus Meconostigma (Araceae) (Buy)
ABSTRACT: Two new species (Philodendron stenolobum E.G.Gonc. and Philodendron paludicola E.G.Gonc. & Salviani) from the genus Philodendron subgenus Meconostigma are described and illustrated. An updated key for the species is presented and two species formerly considered synonyms of Philodendron bipinnatifidum Schott ex Endl. are here considered as good species (Philodendron lundii Warm. and Philodendron mello-barretoanum G.M.Barroso).

2002 25 16-35 Eduardo G. Gonçalves New aroid taxa from Brazil (Buy)
ABSTRACT: Six new taxa of Brazilian Araceae are here described and illustrated (Philodendron nullinervium E.G.Gonc.; Philodendron tenuispadix E.G.Gonc.; Taccarum crassispathum E.G.Gonc.; Xanthosoma acutum E.G.Gonc., Xanthosoma rotundatum E.G.Gonc. and Xanthosoma pulchrum E.G.Gonc.). Along with them, a new name (Philodendron humile E.G.Gonc.) is proposed for Homalomena solimoense G.M.Barroso, since this has proved to be a species of Philodendron, and simply transferring the epithet as a new combination in Philodendron is likely to lead to confusion with the pre-existing name Philodendron solimoesense A.C. Smith.

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.

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 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.

2006 29 158-160 P. Diaz Jimenez Motusay - Philodendron radiatum Schott (Araceae)
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ABSTRACT: Motusay (Philodendron radiatum) has a long history of use as a craft material in Tacotalpa in the state of Tabasco. It is collected from the forests where it is epiphytic on many species of trees, but its popularity is leading to overuse of the material and the decline of natural populations.

2008 31 3-14 Josef Bogner The genus Bognera Mayo and Nicolson (Araceae) (Buy)
ABSTRACT: The genus Bognera Mayo & Nicolson with its single species Bognera recondita (Madison) Mayo & Nicolson, is described and illustrated and its relationships are discussed in detail. Discussions of its history, discovery, distribution, ecology, pollination, etymology and cultivation are given. The genus Bognera is characterized by its creeping rhizome shoot architecture with two cataphylls preceding each foliage leaf, the last one partly enveloping the petiole (a character unique in the family), the essentially parallel-pinnate venation type (philodendroid) but with third order veins in a clearly reticulate pattern, the unconstricted spathe, the stamens of each male flower connate into a synandrium, the female flowers lacking staminodes, the unilocular ovary with a single anatropous ovule on a basal placenta and the inaperturate pollen grains with smooth (psilate) exine.

2008 31 85-89 Eduardo G. Gonçalves, J. Barros de Carvalho Philodendron lupinum -- A new species of Araceae from northwestern Brazil (Buy)
ABSTRACT: A new species of Philodendron (P. lupinum) is described from Acre state, Brazil. It seems to be closer to the species of subgenus Philodendron section Philodendron series Impolita Croat (P. hebetatum, P. strictum and P. thalassicum), but differs from these species by the conspicuously panduriform anterior division and for the presence of fewer ovules per locule. This new species is so far known only from the type locality.

2008 31 107-112 Julius O. Boos Additional notes on Philodendron xanadu (Araceae) (Buy)
ABSTRACT: Philodendmn xanadu Croat, Mayo & Boos was described in 2002 as a new species of Philodendron, and is a member of the subgenus or section Meconostigma, the "self-heading" philodendrons. In this description it is stated that this species differs from other members of the group of the subgenus by its nearly complete lack of posterior lobes on its leaf blades, and the weakly developed posterior ribs. Further observations have proven this statement to be in error, although other distinguishing characters remain. The changes that should be made in the description are laid out. The probable effects of chemicals used in the tissue culture process which affect the appearance and size of the many thousands of commercially produced specimens of this Philodendron species are briefly discussed.

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 32 165-169 Myles Challis In search of Eldorado (Buy)

2009 32 170-177 Steve Lucas A collector's dream to build a rain forest (Buy)

2009 32 178-182 Leland Miyano Lessons from a paradise (Buy)