Philodendron calatheifolium G.S.Bunting
  • Phytologia 60: 311 (1986) 

Notes: Distribution: Venezuela (Táchira)

General Description

Appressed-climbing on tree trunks to at least 3 m above ground, the fertile shoots pendent. Internodes 0.8-8,4 cm long, 0.7-1.2 (-2.2?) cm wide, dark green to olive-gray or silvery gray, glossy, unmarked, drying stramineous to dark brown, coarsely sulcate; roots rather few at distal nodes, to ca. 3.0 mm in diameter. LEAVES: Petiole (17.9-) 25.0-36.6 (-48.2) cm long, P/L=0.94-1.35 (-1,39), semiglossy to glossy, sparsely short-lineate, sheathed 77-85 (-91)%, the sheath erect (proximally) to erect-spreading or (distally) widely spreading, somewhat inequilateral, scariousmargined, glossy on both surfaces, the free portion prolonged by 1.0-3.0 mm; unsheathed portion of petiole 4.0-8.1 cm long, broadly and bluntly to moderately sharply canaliculate above. Lamina (18.2-) 20.1-38.0 cm long, (10.2-) 14.7-26.5 cm wide, L/W=(1.23-) 1.32-1.54 (-1.78), IQI=(1-) 3-6 (-7), moderately thin but firm (chartaceous?), matte to velvety above, matte below, weakly to moderately bicolored, broadly ovate to elliptical (broadest at or below the middle), abruptly short- to (less frequently) long-acuminate apically [the acumen 0.6-1.3 (-1.9) cm long], broadly cuneate to truncate (often ± obliquely) or subcordate basally, with the sinus to ca. 0.95 cm deep; midrib broadly sulcate above, prominently convex below; primary lateral veins 10-16 per side, 0.2-4.8 cm apart, sunken and concolorous above, convex and concolorous below, with interprimaries visible especially toward base; minor veins distinctly visible and darker below; abaxial laminar surface drying virtually smooth to uniformly and ± densely granular or low- granular, patchily alveolate, with reticulate veins not evident; white stitching not evident to scattered or obvious (especially distally); resin canals sometimes visible between secondary lateral veins; adaxial surface similar but with occasional bare streaks; white stitching at best very rare and scattered; resin ducts not evident. INFLORESCENCES solitary or paired; cataphylls generally present, 8.1-16.5 cm long, 0.8-1.0 cm wide, lanceolate, sharply 2-keeled, deciduous; peduncle ca. 5.3-6.8 cm long, P/S=0.62, pale green, with ± elevated whitish or darker" dashes (especially distally); spathe at anthesis 12.8-16.5 cm long, 2.1-2 8 cm wide, externally "rich green'' and inflated below, lighter green distally, internally greenish; spathe drying densely granular with scattered to ± abundant white stitching externally, internally finely granular-verrucate with white stitching not evident, with longitudinal secretory striations in basal 3/5; acumen of spathe 0.6-1.0 cm long. Stipe of spadix 0.4- 0.8 (-1.7?) cm long; spadix 10.4-10.9 (-12.0?) cm long, the fertile male portion at anthesis unknown; sterile male zone "ca 1.5 cm long'' (Bunting to Fleming 13554); fertile female portion of spadix 3.65 (-4.00?) cm long, F/S=0.33, ca. 0.80-1.15 cm wide (slightly post-anthesis); fertile male flowers unknown; sterile male flowers unknown; female flowers 1.2-1.9 mm long, 0.7-1.0 mm wide, the stylar canals ca. 3. INFRUCTESCENCE: Ripe fruits unknown. Seeds unknown.


Premontane Wet Forest life zone;


Venezuela (Táchira), known only from the southern extreme of the Cordillera de Mérida at the headwaters of the Río Uribante basin, north of the Táchira depression.

Distribution Map

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


  • 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 Grayum, M.Howard Revision of Philodendron subgenus Pteromischum (Araceae) for Pacific and Caribbean Tropical America. Systematic Botany Monographs. 47, (1996).

 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
  • C See You may use data on these Terms and Conditions and on further condition that: The data is not used for commercial purposes; You may copy and retain data solely for scholarly, educational or research purposes; You may not publish our data, except for small extracts provided for illustrative purposes and duly acknowledged; You acknowledge the source of the data by the words "With the permission of the Trustees of the Royal Botanic Gardens, Kew" in a position which is reasonably prominent in view of your use of the data; Any other use of data or any other content from this website may only be made with our prior written agreement.