Philodendron elegantulum Croat & Grayum
  • Syst. Bot. Monogr. 47: 135 (1996) 

Notes: Distribution: Panama

General Description

Woody'' vine ascending to at least 10 m on tree trunks. Internodes 0.3-5.2 cm long, 0.3-0.6 cm wide, drying yellowish brown (older stems drying medium brown), coarsely sulcate. LEAVES: Petiole 2.7-5.2 cm long, P/L=(0.22-) 0.29-0.34 (-0.38), extensively sheathed, the sheath erect to involute, slightly prolonged apically (to ca. 0.15 cm); unsheathed portion of petiole obsolete to ca. 0.25 cm long. Lamina (8.8-) 10.5-15.9 cm long, 3.6-5.7 cm wide, L/W=(2.32-) 2.69-3.29 (-3.44), IQI=1-7, lanceolate, elliptical, or oblanceolate (broadest from slightly below to slightly above the middle), ± narrowly acute to acuminate apically (the acumen ca. 0.5-1.4 cm long), broadly cuneate basally; primary lateral veins (5-) 6-8 per side, (0.3-) 1.2-2.5 cm apart, with interprimary veins visible especially above; abaxial laminar surface drying very evenly low-granular, the minor and reticulate veins abundant and prominulous, with abundant white stitching visible to the naked eye; resin canals ± visible; adaxial surface very evenly and conspicuously granular, the minor and reticulate veins prominulous; white stitching occasional; resin canals not visible. INFLORESCENCE always solitary; cataphylls regularly 1-2 per spathe, 3.3-8.9 cm long, 0.5-1.2 cm wide, narrowly to broadly lanceolate (occasionally with a brief foliose tip) , with a medial costa (probably 2 closely approximate keels); peduncle 0.3-1.3 cm long, P/S= (0.04-) 0.08-0.16; spathe at anthesis (5.4-) 6.9-9.2 cm long, 1.4-1.8 (-2.5) cm wide, externally green or yellow-green; spathe drying very densely and evenly granular externally and internally, with longitudinal secretory striations to ca. 2/3-3/4 to apex; acumen of spathe obsolete to ca. 0.35 cm long. Stipe of spadix 0.2-0.5 (-0.9) cm long, adnate to spadix; spadix 5.1-8.1 cm long, the fertile male portion 0.5-0.7 cm wide, white; sterile male zone 0.2-0.4 cm long; female portion of spadix 1.5-2.4 (-3.1) cm long, F/S=0.29-0.38, 0.6-1.2 cm wide, pale green to cream; fertile male flowers 1.2-1.8 mm long, (0.5-) 1.0-2.0 mm wide, irregularly quadrangular to polygonal; sterile male flowers 1.2-2.0 mm long, (0.6-) 1.0-1.6 mm wide, obconical, with beeswax texture in distal 2/3 and raphides proximally; female flowers 1.6-2.3 mm long, 0.6-1.2 mm wide, the stylar canals not seen. INFRUCTESCENCES: Ripe fruits unknown. Seeds unknown.


Probably in the Tropical Wet Forest life zone.


Apparently endemic to the massif known as "Santa Rita ridge," on the Atlantic slope of Panama between Buena Vista and Portobelo in Colón Province.

Distribution Map

  • Native distribution
Found in
  • Southern America Central America Panamá


  • 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 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
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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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