Philodendron atabapoense G.S.Bunting
  • Acta Bot. Venez. 10: 291 (1975) 


Notes: Distribution: 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.

Distribution

Venezuela: Amazonas.

Distribution Map

 
  • Native distribution
Specimens
Found in
  • Southern America Northern South America Venezuela

  Bibliography

  • 1 Hokche, O., Berry, P.E. & Huber, O. (eds.) (2008). Nuevo Catálogo de la Flora Vascular de Venezuela: 1-859. Fundación Instituto Botánico de Venezuela.
  • 2 Govaerts, R. & Frodin, D.G. (2002). World Checklist and Bibliography of Araceae (and Acoraceae): 1-560. The Board of Trustees of the Royal Botanic Gardens, Kew.
  • 3 Bunting, G.S. Nuevas especies para la revision de las Araceas venezolanas. . Acta Bot. Venezuel. 10 (1-4), (1975).

 Information From

CATE Araceae
http://araceae.e-monocot.org
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, 14 Dec 2011 . 17 Dec 2011.
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eMonocot. (2010, 1st November). Retrieved Wednesday, 8th February, 2012, from http://e-monocot.org.
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World Checklist of Selected Plant Families
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WCSP 2014. 'World Checklist of Selected Plant Families. Facilitated by the Royal Botanic Gardens, Kew. Published on the Internet; http://apps.kew.org/wcsp/ Retrieved 2011 onwards
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