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(Last Modified On 10/7/2013)
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(Last Modified On 10/7/2013)
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Habit
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Liana
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Note
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In Panama the species flowers from June to August with fruits developing in the following dry season during December to February.
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Distribution
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ranges from Honduras to Panama.
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Note
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In Panama the species occurs in tropical moist forest and premontane wet forest.
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Specimen
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CANAL ZONE: Gamboa, 40-80 m, Pittier 3706 (NY, US). Cerro Gordo near Culebra, 50-200 m, Pittier 3733 (US). Las Cascadas Plantation near Summit, Standley 29650 (US). CHIRIQUf: Trail from San Felix to Cerro Flor, 100-850 m, Allen 1955 (GH, MO, NY, US). COLON: Border of the Canal Zone 2 mi from Achiote, Folsom 3875 (F, MICH, MO, NY, PMA, US). DARIEN: Mora Swamp ca. 4 mi downstream from El Real, Duke 4950 (MO). Campamento Buena Vista, Rio Chucunaque above confluence with Rio Tuquesa near Quebrada Felix, Stern et al. 950 (MO). LOS SANTOS: Canofistulo, Dwyer 2462 (MO, US). VERAGUAS: Isla Coiba, Dwyer 1602 (US).
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Species
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Heteropteris obovata (Small) Cuatr. & Croat
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Synonym
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Banisteria obovata Small, N. Amer. Fl. 25: 136-137. 1910. TYPE: Costa Rica, near Nicoya, Tonduz 13478 (US, holotype). Spachea sericea Kuntze, Rev. Gen. P1. 1: 68. 1891. TYPE: Panama, Kuntze 8-6-1884 (not seen). Banisteria kuntzei Small, N. Amer. Fl. 25: 137. 1910. Based on Spachea sericea Kuntze. Banisteria hyposerica Standley & L. 0. Williams, Ceiba 3: 50. 1952. TYPE: Honduras, Morazan, below Suyapa 1100 m, Molina 14924 (US, isotype).
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Description
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Liana; stems densely reddish-brown appressed-pubescent, becoming glabrate. Leaves opposite, elliptic to obovate-elliptic, acuminate at the apex and usually narrowed to a sharp apiculum, acute at the base, 5-13 cm long, 2-7.5 cm wide, glabrous on the upper surface, minutely muricate, the lower surface minutely muricate and whitish to brownish sericeous, frequently glandular, the trichomes usually of 2 types, the surface completely covered with fine, sessile, T-shaped trichomes to ca. .7 mm long and with sparse, to 1 mm long, stalked hairs, with a thicker body, usually darker in color than the sessile trichomes; glands of lower surface few to absent, usually in a row ca. midway between the midrib and margin; petioles 3-13 mm long with a pair of small glands appressed at the base on the upper side. Inflorescence upper axillary or terminal, 4-18 cm long, the axis, peduncles, pedicels and calyx lobes densely reddish-brown appressed-pu- bescent; pedicels sessile, not articulate. Flowers yellow; calyx lobes ovate, erect, biglandular, to 2 mm long; petals obovate-spatulate, to 3.3 mm long, clawed, the margins entire to weakly toothed; stamens to ca. 3 mm long, the staminal tube glabrous, to 1.7 mm long, the anthers to 1.2 mm long; pistil to 3.3 mm long, the ovary ovoid, densely reddish-brown pubescent, the styles to 1.7 mm long, gla- brous. Samaras brown, 3-4 cm long, glabrous to inconspicuously appressed- pubescent throughout; the body ovoid-ellipsoid, to ca. 1 cm long, the dorsal margin straight, thickened, the wing 12-14 mm wide near the apex, constricted in the middle to lower 1/3 becoming broader and ending abruptly near the base of the body.
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