Philodendron grandifolium (Jacq.) Schott
  • Wiener Z. Kunst 3: 780 (1829) 


Notes: Distribution: N. South America

General Description

Stem scandent, internodes 3-5 cm long, 2-2.8 cm thick. Cataphyll linear-lanceolate, 20-25 cm long, soon deciduous. LEAVES: Petiole rather terete or occasionally levelled on the upper side, 30-45 cm long, 1.5-1.8 cm thick; blade subcoriaceous subcordate-sagittate, 40-60 cm long, 25-35 cm wide; posterior lobes broadly ovate, obtuse or very obtuse, strongly unequal-sided, the outer side 2 times wider than the inner side, 10-15 cm long and sub-equally as wide; anterior lobe gradually narrowing towards the apex, eventually cuspidate; midrib thick in the lower part, disappearing towards the apex; 5-6 basal primary lateral veins on each side, united in the posterior ribs, naked for 1.5-2 cm long in the sinus; 5-6 costal veins spreading at an obtuse angle, ascending slightly arcuately near the margin. INFLORESCENCE: Peduncle 2.5-3.5 cm long, 4-6 mm thick. Spathe tube oblong, externally yellowish green, internally dorsally purplish, 4-5 cm long, 1.6-2 cm wide; blade ovate, apex shortly apiculate, 4-4.5 cm long, 3 cm wide, externally pale greenish yellow, internally sulphur-white. Spadix cylindroid with an 8 mm long stipe; female zone 3-3.5 cm long, almost 2 times shorter than the male zone. Pistils oblong-ovoid, ca. 2.5 mm long, 10-12-locular; stigma discoid, orbicular; ovules affixed somewhat below halfway up the locule. Male flowers usually 4-androus.

Diagnostic Description

The species has leaves similar to P. acutatum Schott, but differs in being a much more robust plant with shorter, thicker internodes on flowering plants and by having stouter, more numerous inflorescences (up to 6 per axil). The generally large leaf blades are much longer than broad, typically somewhat triangular with conspicuously naked posterior ribs. The species is also similar in many respects to P. barrosoanum Bunting, but in that species the leaf blade is more decidedly 3-lobed.

Distribution

Philodendron grandifolium ranges from northern and western Venezuela to the Guianas, ranging from sea level in the eastern part of its range to 1,260 m in the Andes. In Venezuela, the species is known from Tachira, Merida and Yaracuy in the western Andes, throughout most of the Cordillera de la Costa (Aragua and the Distrito Federal) as well as in the Delta Amacuro.

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 Krause, K. Araceae-Philodendroideae-Philodendreae-Philodendrinae. Das Pflanzenreich. 60 (IV.23Db), (1913).
  • 4 Croat, T.Bernard & Lambert, N." The Araceae of Venezuela. Aroideana. 9 (1-4), (1986).

 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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Global Biodiversity Information Facility
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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
http://apps.kew.org/wcsp/
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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