Philodendron werkhoveniae Croat
  • Aroideana 27: 58 (2004) 

Notes: Distribution: Suriname

General Description

Terrestrial, on boulders or as a low epiphyte; often growing on talus in groups of 5-8 stems; internodes short, to 1.5 cm diam.; cataphylls persisting intact at upper nodes, with thin, brown epidermis. LEAVES with petioles subterete, slightly flattened adaxially, bluntly 1-angular on 1 side, (24)40-55 cm long, moderately firm, dark green, weakly glossy or matte; blades 26-35 cm long, deeply 3-lobed to within 1.5-2.5 cm of base, subcoriaceous, matte, moderately bicolorous, dark green above, the lobes arching, with tips turned downward, narrowly acuminate at apex (often merely acute on lateral lobes); medial lobe more or less elliptic, (22)26-35 cm long, (6.3)8.2-12.3 cm wide, narrowly confluent onto the lateral lobes; lateral lobes inequilateral, attenuate at base, falcate, curved toward the apex, (13)22-24 cm long, (2)4-9 cm wide; midrib sunken above, narrowly raised and darker below; primary lateral veins deeply sunken-quilted above, pleated-raised, darker and matte below, drying slightly paler than surface, 2-4 pairs on medial lobe, mostly aggregated in lower half of lobe, arising at 20-35°, 6-9 pairs on lateral lobes, joined into a posterior rib extending straight in the lateral lobe, with the veins pinnately arranged on both sides, several coalesced 4.5-6 cm; minor veins moderately distinct, dark and fine below, somewhat raised on drying; cross-veins distinct on drying. INFLORESCENCE solitary; peduncle (5)11-13 cm long, 7mm diam., dark green, weakly glossy, coarsely pale, short green-lineate at apex and on base of tube; spathe 6-8 cm long; spathe tube 4-4.5 cm long, 1.8-2.2 cm diam., medium green to pale yellow, dark-green-striate outside, pale green inside; spathe blade greenish-white on both surfaces; spadix cream-colored, stipitate 6 mm (stipe 6 mm diam., green), 6.5 cm long, slightly shorter than spathe; pistillate portion 1.8-2.2 cm long, 9-11 mm diam., pale tan; staminate portion 4 cm long, 8 mm diam., broadest at base, weakly tapered to apex; sterile staminate portion 1 cm long, 8.5-9 mm diam.; pistils pale green, pale yellow (post-anthesis), 1.8-2.2 cm diam., some of the uppermost much reduced and rounded by staminodes; stigmas 1.3-1.4 mm wide; ovaries (4)6-locular; ovules 15- 20 per locule, 0.2-0.5 mm long; funicles 0.3-0.5 mm long; berries orange.


Occurs in Suriname and French Guiana. In French Guiana, it is known only from Haut Oyapock, Mt. St. Marcel, at 300-450 m elevation, along Crique Poivre.

Distribution Map

  • Native distribution
Found in
  • Southern America Northern South America Suriname


  • 1 Govaerts, R.H.A. (2011). World checklist of selected plant families published update. Facilitated by the Trustees of the Royal Botanic Gardens, Kew.

 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
Global Biodiversity Information Facility
  • B All Rights Reserved
eMonocot. (2010, 1st November). Retrieved Wednesday, 8th February, 2012, from
  • C 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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