Philodendron simmondsii Mayo
  • Aroideana 4: 20 (1981) 

Notes: Distribution: Trinidad

General Description

High-climbing, resinous-scented, scandent epiphyte. Stem with internodes 4-10 x 1-2 cm, shortening and thickening in flowering phase, epidermis greyish-green (yellowish when dry), producing several reddish-brown clasping roots at each node. Cataphylls c. 14 cm long, soon deciduous. LEAVES: Petiole 44-87 cm long, 0.9-1.5 times as long as lamina, terete, with sheath 4-8.5 cm long when subtending inflorescence. Lamina 30-82 x 20-50 cm, 1.4-1.7 times longer than broad, normally broadest below petiole insertion, triangular in outline, margin lobed or strongly sinuate, marginal lobes 5-7 per side, 1.5-3.5 cm long, most strongly marked at middle of leaf, becoming less distinct towards leaf apex and on inner edge of posterior lobes, apex shortly acuminate, base sagittate, posterior lobes obtusely-tipped, separated by broadly oblong sinus 0.2-0.3 times as long as lamina; primary lateral veins of anterior lobe 4-5 (-6) per side, diverging at 75° - 80° from midrib, somewhat prominent and pink-tinged on abaxial surface; basal ribs of posterior lobes straight, strongly developed, denuded proximally for 1.4-4 cm, with 2-3 well-differentiated main acroscopic veins and 2-3 weaker byt distinct main basiscopic veins. INFLORESCENCES 1-2 (?) per leaf axil. Peduncle 14-17.5 (-20) cm long, equal or subequal to spathe, terete. Spathe 14.5-16.5 cm long, ca. 2 cm in diameter, outer surface green, inner surface crimson basally, paler to white apically; spadix subsessile, obliquely inserted on peduncle, 13.5-14(-15) cm long, basal pistillate part 3.5-4 x 0.9-1.2 cm, lengthening and thickening in fruit, central staminodial part 1.5-2 x 1.3-1.5 cm, apical staminate part 8 x 1.1-1.2 cm; ovary 7-8 locular, each locule with 4.5 axile ovules attached near base, style conical, stigma capitate, subspherical. Fruit oblong, white, few to several-seeded. Seeds 3-4 mm long, oblong, l-2 per locule.



Distribution Map

  • Native distribution
Found in
  • Southern America Caribbean Trinidad-Tobago


  • 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 Mayo, S.Joseph A new species of Philodendron from Trinidad. Aroideana. 4 (1), (1981).

 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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