Philodendron krauseanum Steyerm.
  • Fieldiana, Bot. 28: 98 (1951) 


Notes: Distribution: N. South America

General Description

Stem scandent, terete, upper internodes 8-12 mm long. LEAVES: Petiole 6-11 cm long, sheath rather wide, up to 1 cm wide, apex obtuse, not reaching the base of the blade. Blade coriaceous, oblong-elliptic, apex cuspidate-acuminate, base obtuse or rounded, 15-22 cm long, 6-8 cm wide; 8 primary lateral veins on each side, conspicuous on the upper surface, ascending arcuately. Leaf sheath broad on both sides of petiole and extending to within 7-8 mm of junction with blade and petiole, slightly produced beyond the insertion; leaf blades deep or rich green above, dull paler green below, midnerve prominent, especially below, 1.5 mm. wide, the 8 primary nerves on each side on lower surface of blade; much more conspicuous than the fine, closely spaced, arcuate-ascending secondary and tertiary nerves. INFLORESCENCE: Peduncle ca. 3.5 cm long, spathe green externally, 11-12.5 cm long, tube ovoid-oblong, 2.5-3 cm wide, somewhat shorter than the oblong blade, apex abruptly cuspidate; Spadix cylindric, somewhat attenuate upwards, obtuse, shorter or longer than the spathe, 10.5-16.5 cm long, 1-1.5 cm thick. Female zone 5-7.5 cm long, ca. 1.5 cm thick. Pistil prismatic, 5 mm long, usually 4-locular, ovules very numerous per locule, biseriate, stigma somewhat larger, rounded; Male zone 8-9 cm long, 1 cm thick; male flowers prismatic.

Diagnostic Description

In the broad petiolar sheath this species approaches P. lingulatum (L.) C. Koch of the West Indies, but that has the leaf blades more obtuse at base and a narrower petiolar sheath. In P. lingulatum the leaf blade is ovate, whereas in P. krauseanum it is oblong-elliptic.

Distribution

Venezuela.

Distribution Map

 
  • Native distribution
Specimens
Found in
  • Southern America Northern South America French Guiana
  • Guyana
  • Suriname
  • 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 Steyermark, J.A. Botanical Exploration in Venezuela. Fieldiana, Bot. 28, (1951).

 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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