Philodendron orionis G.S.Bunting
  • Phytologia 60: 322 (1986) 


Notes: Distribution: NW. Venezuela

General Description

Large scandent herb. Stem up to 10 m long, 6 cm in diameter, internodes naked, ca. 1.5 cm long. Cataphylls up to 58 cm long, soon caducous. LEAVES: Petiole up to 1.04 m long, almost terete halfway, 1.9-2.5 cm in diameter, convex or flattened adaxially towards the apex, sometimes somewhat purple-spotted, sheathed part 5.7-10 cm long. Leaf blade thinly semi-coriaceous (papery when dry) nevertheless fragile, easily broken parallel to the primary lateral veins, ovate (triangular in juvenile plants), 73-90 cm long, 47-58 cm wide (6-12 cm above the base of the midrib), acute or obtuse at the apex, apex itself acuminate (0.8-2 cm), cordate-sagittate at the base; posterior lobes 19-23 cm long, 20-25 cm wide, usually angular, apex obtuse, separated by a narrowly spathulate spathe, the margins of which are almost contiguous, or the lobes are imbricate with a closed and obovate sinus; adaxially dark green, more or less glossy, midrib 1.7 cm wide, costal primary lateral veins sulcate, 5-6 on each side, emerging at an angle of ca. 55-70º, a posterior rib is naked for 0.7-2 cm in the sinus, 3 principal veins on the inner side, 3-4 outer side [of the posterior lobes]. INFLORESCENCES in pairs or threes. Peduncle 3.5-6 cm long, green, purplish at the top. Spathe 18-19 cm long, tube 9-9.5 cm long, 3-4.3 cm thick, externally at least on one side dark wine-coloured, margin diaphanous, 0.3 cm wide, blade green with wine-coloured spots; internally tube dark red-purple, blade whitish. Spadix 1.3 cm shorter than spathe, 13.3-16 cm long, sessile at the back, at the front the axis is naked for 0.8-2.7 cm; female zone yellowish, 4.9 cm long at the front, 2.8 cm long at the back, 1.7 cm thick, eventually 6.5 (4.6) cm long; sterile male zone white, 2.6-3 cm long, 2.2 cm thick; fertile male zone white 7.8 cm long, 2.2 cm thick. Pistillate flowers: ovaries 7-9-locular, numerous ovules in each locules, ('superpositus'). Male flowers 6-5(-4)-androus.

Distribution

Venezuela.

Distribution Map

 
  • Native distribution
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."" New taxa of Venezuelan Araceae. Phytologia. 60 (5), (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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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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