Philodendron vinaceum G.S.Bunting
  • Acta Bot. Venez. 10: 317 (1975) 


Notes: Distribution: Venezuela (Bolívar)

General Description

Rosulate herb. Stem up to 11 cm long, 4 cm in diameter, internodes abbreviated, clothed in cataphyll remains, leafy near the apex. Cataphyll thick, up to 33 cm long, 12 cm wide at the base, in place (covering the terminal bud) changing into rusty-red fibrous remains. LEAVES: Petiole green, semi-terete, ventrally canaliculate, up to 65 cm long, sheathed for 6 cm long in the lower part. Leaf blade coriaceous, in adult plants the outline is triangular-ovate, not-deeply cordate at the base, obtuse upwards, acuminate fro 3-5 cm in the upper part, finally extending in a 1 cm long cusp (in juvenile plants, ovate with a truncate base); adaxially deep green, midrib obtusely angled-canaliculate, 8-9 primary lateral veins on both sides, sulcate, straight, departing at an angle of up to 50-60º, arcuate near the margin, minor veins sub-parallel; abaxially wine-coloured or from brown to wine-coloured, except for the obtuse-angled raised midrib and primary veins which are green. INFLORESCENCE: Peduncle solitary, 10 cm long. Spathe 14 cm long, more or less cylindric, barely constricted, tube ca. 6 cm long. Spadix stipitate, stipe 0.9 cm long, almost cylindric, 10.5 cm long; female zone 3.2 cm long and 1.3 cm in diameter; sterile male zone 0.9 cm long, fertile zone 7.3 cm long and 1.2 cm in diameter. Pistillate flowers: ovary 4-5-locular, ovules very numerous in each locule, superposed.

Diagnostic Description

The species is a rosulate epiphytic herb characterized by its short internodes, a rotten mass of cataphylls (unribbed when fresh with the outer epidermis persisting for a time), its broadly ovate, usually moderately thick blades, which are rounded to subcordate at the base and brownish maroon when young on the lower surface. The petioles are generally somewhat shorter than the blades and are obtusely D-shaped to broadly sulcate adaxially, with usually prominent margins. The inflorescences are solitary, with the peduncle somewhat shorter than the spathe. Another unusual feature of this species is the presence of well developed "cross-veins" extending between adjacent minor veins on the lower surface.

Distribution

Endemic to Venezuela, in the Gran Sabana of Bolívar State.

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 Boyce, P.Charles The Genus Arum. (1993).
  • 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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