Anthurium panduriforme Schott,
Prod. Aroid. 536. 1860.
Anthurium panduratum Schott, Oesterr. Bot. Z. 8: 182. 1858 non Mart. ex Schott, 1855. TYPE: Costa Rica. San Miguel, Wendland 776 (GOET).
Epiphytic or occasionally terrestrial; stems usually less than 30 cm long, occasionally to 1 m long; cataphylls drying tan, usually deciduous, with a few thin fibers sometimes persisting; petioles 25-73 cm long, 3-7 mm diam., terete, sometimes weakly sulcate; blades hastate-trilobate, 20-65 cm long, 10-43 cm wide, prominently lobed at base. Inflorescence erect; peduncle (5-)11-20(-32) cm long, 4-6 mm diam., terete; spathe moderately thin, pale green, sometimes tinged reddish, oblong-lanceolate, 6.3-19 cm long, 2.7-3.5 cm wide; spadix golden yellow, 7-18 cm long, 7-9 mm diam. midway; berries pale green, ovoid, 5-7 mm long, seeds 2. See Croat (1983: 341) for a more complete description.
The species is known from Costa Rica to Colombia and probably Ecuador at 400 to 1,560 m in tropical wet, premontane rain, and lower montane rain forest. In Panama the species occurs on both slopes.
Anthurium panduriforme is probably best placed in section Polyneurium and is distinguished by its almost orbicular posterior lobes (sometimes more elongate in Panama, particularly collections made at Cerro Tute near Santa Fe in Veraguas Province), its characteristically yellow-green, shiny lower blade surface, and its golden yellow spadix with yellow pollen. The species is apparently not related to any other Central American species but is probably related to other South American species, such as A. argyrostachyum Sodiro of Ecuador, which have numerous closely parallel primary lateral veins.
Schott's original spelling of the name appeared as Anthurium panduraeforme, but the spelling has been changed to reflect current rules of nomenclature.
Map of Mesoamerican specimens with coordinates
Costa Rica Alajuela: 900-1000 m, 10.12.40N 84.36.20W, 17 January 1991, Jens
Bittner 298 (MO).
Costa Rica Alajuela: 900-1000 m, 10.12.40N 84.36.20W, 4 February 1991, Jens
Bittner 604 (MO).
Costa Rica Alajuela: R.F. San Ramón; Cordillera de Tilarán, 800-900
m, 10.13.10N 84.35.35W, 30 April 1993, Hazel Gutiérrez, R. Guzmán,
F. Araya & M. Segura 34 (CR).
Costa Rica Alajuela: R.B. Monteverde; Cordillera de Tilarán, 1000 m,
10.17.40N 84.45.00W, 19 February 1992, Erick Bello 4420 (CR).
Costa Rica Alajuela: R.F. San Ramón; Cordillera de Tilarán, 1000-1100
m, 10.12.55N 84.36.25W, 29 April 1993, M. Segura, J.F. Morales & Curso de
Botánica 50 (CR).
Costa Rica Alajuela: 925 m, 10.11N 84.30W, 3 September 1996, Thomas B. Croat
78839 (IBM, MO).
Costa Rica Alajuela: 700-800 m,, 18 April 1976, John and Kathy Utley 4687 (MO).
Costa Rica Guanacaste: P.N. Guanacaste; Cordillera de Guanacaste, 1100 m, 10.54.42N
85.27.58W, 17 June 1995, J.F. Morales 4671 (CR).
Costa Rica Heredia: P.N. Braulio Carrillo, 1150 m,, 23 Jan 1983, Garwood et
al. 412 (BM).
Costa Rica Heredia: 1060 m, 10.16N 84.05W, 18 April 1988, B.A. Loiselle 381
(MO).
Costa Rica Heredia: 1350 m,, 26 May 1976, Thomas B. Croat 35587 (MO).
Costa Rica Lim—n: 850 m, 9.47.40N 83.06.30W, 8 April 1989, Rafael Robles &
Abelardo Chacón 2723 (MO).
Panama Bocas del Toro: 1100-1750 m, 8.35N 81.54W, 27-31 Mar 1986, Barry Hammel
& J. Trainer 14918 (MO).
Panama Bocas del Toro: Cerro Colorado, 1500 m, 8.35N 81.50W, 8 July 1988, Croat
69210 (MO).
Panama Bocas del Toro: Cerro Colorado, 1450-1480 m, 8.35N 81.50W, 7 Jul 1988,
Croat 69140 (MO).
Panama Bocas del Toro: 950-1100 m, 8.48N 82.10W, 7 March 1986, Gordon McPherson
8679 (MO).
Panama Bocas del Toro: 1500 m, 8.35N 81.45W, 12 April 1986, Gordon McPherson
8819 (MO).
Panama Bocas del Toro: 1400 m, 8.35N 81.45W, 14 April 1986, Gordon McPherson
8896 (MO).
Panama Chiriquí: Fortuna Dam Area, 1300 m, 8.43N 82.14W, 24 Feb. 1985, Hampshire
& Whitefoord 37 (BM). Panama Chiriquí:, 7 Apr. 1987, Valdespino , I. et
al. 450 (MO).
Panama CoclŽ: 600-800 m, 08.38N 08.35W, 8 July 1994, Thomas B. Croat & Guanghua
Zhu 77199 (CM, GB, MEXU, MO, NY, SEL, STRI).
Panama CoclŽ: 680-770 m, 08.39N 80.36W, 25 March 1993, Thomas B. Croat 74825
(MO).
Panama CoclŽ: La Mesa, 850-950 m, 8.37N 80.08W, 14 July 1987, Croat 67304 (MO).
Panama Darien: 1250-1500 m, 7.45N 77.40W, 3 March 1988, Gordon McPherson 12210
(MO).
Panama Veraguas: 800-950 m, 8.33N 81.08W, 29 June 1987, Thomas B. Croat 66991
(MO).
Map of South American Specimens with coordinates
Colombia Antioquia: Las Orquideas, 1400-1430 m, 6.32N 76.19W, 28 mar. 1988,
A. Cogollo et al. 2726 (MO).
Colombia Antioquia: 1440 m, 6.05N 75.00W, 26 June 1987, Callejas et al. 4245
(NY). Colombia Antioquia: 300 m,, 29 Apr 1977, Callejas 199 (HUA).
Colombia Antioquia: 1490-1600 m, 6.55N 75.04W, 3 Oct. 1992, Fonnegra & Palinologia
4501 (MO).
Colombia Antioquia: 150 m, 06.55N 75.03W, 24 May 1989, Daly & Escobar 6089
(NY).
Colombia Choco: 1430 m, 4.53.0N 76.13.0W, 12 May 1983, Thomas B. Croat 56706
(MO).
Colombia Choco: 910-920 m, 5.45.00N 76.21.30W, 11 March 1984, Thomas B. Croat
57346 (CM, COL, F, JAUM, MEXU, MO, NY, QUIBDO).
Colombia Choco:, 8 Nov 1972, Madison 824 (SEL).
Colombia Narino: Valley of Río Imbí, 1100 m, 1.08N 77.56W, 14
March 1990, Thomas B. Croat 71421 (K, MEXU, MO, US).
Colombia Risaralda: 1890 m,, 21 Feb. 1990, Thomas B. Croat 70828 (MO).
Colombia Risaralda: 1550 m,, 29 Mar. 1992, Alonso et al. 9572 (COL).
Colombia Risaralda: 1400 - 1800 m,, 20 Sept. 1991, Alonso et al. 9126 (COL).
Colombia Valle del Cauca: 03.31N 76.45W, 9 July 1993, Thomas B. Croat &
Dorothy Bay 75601 (MO).
Colombia Valle del Cauca: 900 m, 03.28N 76.38W, 12 Feb. 1990, Thomas B. Croat
& Jonathan Watt 70483 (MO).
Colombia Valle del Cauca: 1300 m, 3.33N 76.44W, 22 Mar 1984, Croat 57595 (COL).
Colombia Valle del Cauca: Estacion Microndas Tokio, 2.27N 76.45W, 27 Sept 1980,
Thomas B. Croat 50182 (MO).
Colombia Valle del Cauca: Estacion Microndas Tokio, 2.27N 76.45W, 27 Sept 1980,
Thomas B. Croat 50176 (MO).
Colombia Valle del Cauca: Estacion Microndas Tokio, 2.27N 76.45W, 26 Sept 1980,
Thomas B. Croat 50161 (MO).
Colombia Valle del Cauca: Estacion Microndas Tokio, 2.27N 76.45W, 26 Sept 1980,
Thomas B. Croat 50156 (MO).
Colombia Valle del Cauca: Estacion Microndas Tokio, 2.27N 76.45W, 27 Sept 1980,
Thomas B. Croat 50190 (CM, MO).
Colombia Valle del Cauca: 1900 m,, 5 June 1994, Gensini, Jorge Giraldo 273 (MO).
Colombia Valle del Cauca: 1900 m,, 8 May 1994, Gensini, Jorge Giraldo 322 (MO).
Colombia Valle del Cauca: 1900 m, 03.30.50N 076.36.30W, 10 July 1997, Thomas
B. Croat & John F. Gaskin 79638 .
Colombia Valle del Cauca: 1400 m, 03.31.00N 076.44.00W, 10 July 1997, Thomas
B. Croat & John F. Gaskin 79659 .
Colombia Valle del Cauca: 220 - 230 m, 03.37.00N 076.58.00W, 12 July 1997, Thomas
B. Croat & John F. Gaskin 79734 .
Colombia Valle del Cauca: 220 - 230 m, 03.37.00N 076.58.00W, 12 July 1997, Thomas
B. Croat & John F. Gaskin 79744 .
Colombia Valle del Cauca: 1945 m, 03.32.22N 076.38.00W, 17 July 1997, Thomas
B. Croat & John F. Gaskin 79971 .
Colombia Valle del Cauca: 1945 m, 03.32.10N 076.36.37E, 17 July 1997, Thomas
B. Croat & John F. Gaskin 79984 .
Colombia Valle del Cauca: 1250 m, 03.32.23N 076.45.26W, 26 July 1997, Thomas
B. Croat & John F. Gaskin 80357 .
Ecuador Carchí: El Pailon, 800 m,, 29 Nov 1979, Madison & Besse 7180 (SEL).
Ecuador Carchí: El Pailon, 800 m,, 29 Nov 1979, Madison & Besse 7177 (SEL).
Ecuador Esmeraldas: 550-650 m,, 9 Jun 1978, Madison et al. 5058 (SEL).
Ecuador Esmeraldas: 647 m, 00.52.51N 078.28.30W, 30 June 1998, Thomas B. Croat,
Richard Mansell, Lynn Hannon & Jane Whitehill 82144 (MO).
Ecuador Pichincha: 700 m, 0.16N 79.07W, 03 Apr 1983, Thomas B. Croat 55740 (MO).
Ecuador Pichincha: 750 m, 0.05N 79.02W, 15 Jul 1986, Thomas B. Croat & Jimena
Rodríguez B. 61468 (CM, G, K, MO, QCA).
Ecuador Pichincha: 600-675 m, 00.37S 79.18W, 10 Apr 1989, Mike Grayum &
Nelson Zamora 9402 (MO!).
Ecuador Pichincha: Reserva Endesa, 800 m,, 25 Mar 1985, Harling & Andersson
23322 (GB).
Ecuador Pichincha: Reserva Endesa, 800 m,, 23 Mar 1985, Harling & Andersson
23247 (GB).
Ecuador Pichincha: 800 m, 00.05N 079.02W, 19 Feb 1984, Jimena Rodriguez 198
(QCA).
Ecuador Pichincha: 00.05N 079.02W, , Jimena Rodriguez 225 (QCA).
Ecuador Pichincha: 00.05N 079.02W, , Jimena Rodriguez 395A (QCA).
Ecuador Pichincha: 00.05N 079.02W, , Jimena Rodriguez 419 (K, QCA). Ecuador
Pichincha: 00.05N 079.02W, , Jimena Rodriguez 423 (QCA).
Ecuador Pichincha: 00.05N 079.02W, , jaramillo 7626 (QCA).