Philodendron altomacaense Nadruz & Mayo
  • Bol. Bot. Univ. São Paulo 17: 48 (1998) 

Notes: Distribution: Brazil (Rio de Janeiro)

General Description

Hemi-epiphytic, sometimes terrestrial vine. Stem: apex green becoming chestnut-coloured in the mature parts, internodes 4-7 cm long. Prophyll 30 x 1.5 cm, reddish-cream, becoming brownish, narrowly triangular, sharply 2-ribbed. LEAVES: Petiole 45-70 cm long, green, becoming reddish-green towards to the apex. Leaf blade 45-48 x 26-34 cm, elliptic cordate, apex acute, base cordate to subsagittate, dark green, shiny on the adaxial surface, coriaceous; anterior division 26-37 x 16-25 (-31) cm, primary lateral veins 6-9 per side, interprimary veins distinct; posterior divisions 8-18 x 14-36 cm, acroscopic veins 0-2 per side, basioscopic veins 2-3 per side; basal veins 4-7, with none or rarely 1 free to base; posterior rib naked for 1.8-3.2 cm. INFLORESCENCE: 1-3 per floral sympodium; peduncle 4-5 cm long. Spathe 12-19 x 1.6-2.3 cm, boat shaped, not constricted, greenish-cream outside, cream with base reddish to wine-coloured inside. Spadix 13-17 cm long; male zone 6-8 cm long; intermediate male sterile zone 1.3-1.5 cm long; apical male sterile zone 0.8-0.9 cm long, female zone 5.8-6.5 cm long. Flowers: stamens: 1.8-2 x 1.2-1.8 mm, intermediate sterile stamens: 1.8-2 x 2-2.5 mm, apical sterile stamens 1.5-1.8 x 1.3-1.5; gynoecium 3.5-4 x 2-2.5 mm, ovary with 8-10 locules, 2-3 ovules per locule, placentation sub-basal. Berries 6-7 mm long, cream. Seed 1.5 mm long, ellipsoid.


Hemi-epiphytic, sometimes terrestrial, in Atlantic forest.


Brazil: Macaé de Cima, Rio de Janeiro.


Critically Endangered (CR), B1, a, b (i, iii); extent of occurence <100 km 2. Studied in the field by the first author, and so far only known from a single population, protected within the Reserva Ecológica de Macaé de Cima.

Distribution Map

  • Native distribution
Found in
  • Southern America Brazil Brazil Southeast


  • 1 Giulietti & al. (2009). Plantas raras do Brasil: 1-496. Conservação International, Belo Horizonte, MG.
  • 2 Sakuragui, C.M., Mayo, S.J. & Zappi, D.C. (2005). Taxonomic revision of Brazilian species of Philodendron. Kew Bulletin 60: 465-513.
  • 3 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.
  • 4 Sakuragui, C.M., Mayo, S.Joseph & Zappi, D.C. Taxonomic revision of Brazilian species of Philodendron section Macrobelium Kew Bull. 60, (2005).

 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.
  • A All Rights Reserved
eMonocot. (2010, 1st November). Retrieved Wednesday, 8th February, 2012, from
  • B Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
World Checklist of Selected Plant Families
WCSP 2014. 'World Checklist of Selected Plant Families. Facilitated by the Royal Botanic Gardens, Kew. Published on the Internet; Retrieved 2011 onwards
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