Philodendron atabapoense G.S.Bunting

First published in Acta Bot. Venez. 10: 291 (1975)
This species is accepted
The native range of this species is Venezuela (Amazonas). It is a climber and grows primarily in the wet tropical biome.


CATE Araceae, 17 Dec 2011.

Venezuela: Amazonas.
General Description
Long scandent herb. Stem soon weak-grey-brown, 2.3 cm diam. Internodes somewhat longer than thick. Cataphylls green, margins becoming ivory, sparsely dotted with wine colour, dorsally 2-keeled, caducous. LEAVES: Petiole firm to rigid, somewhat shorter than blade, 47-59 cm long and 1 cm thick, terete or ventrally slightly convex in the upper part, pale green, spotted with wine-colour above and in the upper part, which is 4.3-5 cm long, pinkish-wine and slightly asperous, the lower part sheathed for 2.5-6 (-12) cm. Leaf blade chartaceous, firm but brittle, up to 50-63 cm long and (20.5-) 23-30 cm wide, outline triangular-ovate, very wide 2-5 cm above the base of the midrib, from a length of 15 cm upwards, quickly attenuating and concaved margined, after that, slightly attenuate and concave-margined up to the apex which is usually obtuse with an acumen; below from the place where it is very broad to halfway on the posterior lobe it is barely narrowed; Posterior lobes more or less oblong, obtusely rounded towards the apex or slightly angular, at halfway, one 6.7-8.3 cm and the other 10.3-12 cm wide, separated by a sinus 15-18 cm long, mitriform in outline. Ca. 3 principal veins from the base, joined into a posterior rib, naked for 2.5-4(-5) cm in the sinus; Anterior lobe primary lateral veins sulcate, (4-)5-6 on each side, spreading at an angle of 70º-85º; Margin slightly undulate and pale-yellowish-pink margined (0.1 cm) adaxially dark green, glaucescent, eventually moderately glossy; Midrib flat, convex below, 0.6 cm wide, pale yellowish-green, and wine-spotted, posterior ribs flat, pale yellowish-green, venation firstly wine-coloured eventually green, green on both sides, barely glossy, midrib convex sparsely wine-spotted, primary veins prominent, minor veins subparallel. INFLORESCENCE: Peduncles in pairs, 10.5-14 cm long, green, purple spotted upwards. Spathe up to 16.7 cm long, tube elongate fusiform, 8.6 cm long and 2.1 cm thick, externally green with pink-wine margins (3-4 mm), internally intense cheey coloured, blade white. Spadix sessile, strongly oblique at base, 14.5 cm long, pistillate part 4 cm long and 1.3 cm thick, sterile staminate part, 3.5 cm long and 1.5 cm thick, fertile part 8 cm long and 1.15 cm thick. Pistillate flowers more or less ovoid-urceolate, ovary 8 (-9)-locular, locules 4-ovulate.

Bernal, R., Gradstein, S.R. & Celis, M. (eds.). 2015. Catálogo de plantas y líquenes de Colombia. Instituto de Ciencias Naturales, Universidad Nacional de Colombia, Bogotá.

Nativa en Colombia; Alt. 100 - 140 m.; Amazonia? Guayana y Serranía de La Macarena?.
Morphology General Habit
Hierba, trepadora
No Evaluada

Biogeografic region: Amazonia, Guiana Shield. Elevation range: 100–140 m a.s.l. Native to Colombia. Colombian departments: Guainía.
Herb, Climbing.


  • CATE Araceae

    • Haigh, A., Clark, B., Reynolds, L., Mayo, S.J., Croat, T.B., Lay, L., Boyce, P.C., Mora, M., Bogner, J., Sellaro, M., Wong, S.Y., Kostelac, C., Grayum, M.H., Keating, R.C., Ruckert, G., Naylor, M.F. and Hay, A., CATE Araceae, 17 Dec 2011.
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