Philodendron rugosum Bogner & G.S.Bunting
  • Willdenowia 13: 183 (1983) 

Notes: Distribution: Ecuador

General Description

Climber. Stems up to 4 cm in diameter, internodes 1.5-3 cm long; aerial roots up to 5 mm in diameter, reddish brown. Cataphylls 18-20 cm long, green becoming brown and persistent for some time. LEAVES: Petiole up to 40 cm long, terete, ca. 1 cm in diameter ad midpoint, middle green; vaginate part 6-7 cm long (in non-flowering material 10-15 cm long). Leaf blade coriaceous, ovate, base cordate, apex cuspidate to 35 cm long and 30 cm middle green, upper surface conspicuously rugose, lower surface smooth, with a prominent hyaline margin; midrib convex and basally up to 8 mm wide, with 7-10 inconspicuous primary lateral veins arising from each side of midrib. INFLORESCENCES 1-4 together. Peduncle 4.5-5 cm long and 0.6-0.8 cm in diameter, reddish. Spathe 8-10 cm long, slightly constricted, the tube up to 2 cm in diameter; dark red below and lighter red above on both faces, with a short greenish tip. Spadix sessile, adnate to the spathe for ca. 1.2 cm length, up to 9 cm long and ca. 1 cm thick, cream-colored, apically blunt; pistillate part to 4.5 cm long and the staminate part approximately of the same length. Pistil ca. 2 mm long; stigma subcapitate, ca. 0.8 mm in diameter; ovary shortly cylindric ca. 1.8 mm long and 1.4 mm in diameter, mostly 6-locular usually with one orthotropous ovule in each locule. Staminate flowers of 3 (2-4) stamens, 1 mm long and 1.2-2 mm in diameter; pollen grains ellipsoid, inaperturate, 26-27 µm long and 13-14 µm thick, exine verrucose. Chromosomes: 2n = 36.


Ecuador: Prov. Pastaza, between Puyo and Veracruz, ca. 10-12 km from Puyo. Known only from the type locality.

Distribution Map

  • Native distribution
Found in
  • Southern America Western South America Ecuador


  • 1 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.
  • 2 Bunting, J.Bogner & Sydney, G. A new Philodendron species Araceae from Ecuador. Willdenowia. 13, (1983).

 Information From

CATE Araceae
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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World Checklist of Selected Plant Families
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