Philodendron romeroi Grayum
  • Syst. Bot. Monogr. 47: 70 (1996) 

Notes: Distribution: Colombia

General Description

Climbing (presumably appressed) epiphytic herb to 3-4 m, also trailing on the ground. Internodes 1.9-9.1 cm long, 0.4-0.8 cm wide, drying yellowish tan, coarsely sulcate, the epidermis brittle and cracking; roots present at distal nodes, generally few, to ca. 1.5 mm in diameter. LEAVES: Petiole 11.3-19.4 cm long, P/L= (0.57-) 0.72-0.76, sheathed 85-93% , the sheath horizontally splayed, the free portion prolonged by 1.0-3.0 mm; unsheathed portion of petiole 0.8-1.1 (-2.4) cm long. Lamina 18.2-26.2+ cm long, 9.6-13.6 cm wide, L/W= 1.81-2.20, IQI=0-2 (-6), narrowly to broadly elliptical, ovate or oblong (broadest near or below the middle), ± gradually to abruptly short- to somewhat long-acuminate apically (the acumen ca. 0.6-1.6 cm long) , truncate or broadly rounded to (most commonly) circulate to subcordate basally, with the sinus to ca. 5.5 mm deep; primary lateral veins 4-6 per side, 0.4-4.0 cm apart; abaxial laminar surface drying evenly and moderately to densely granular or low-granular, sometimes slightly alveolate; reticulate veins obvious distally and marginally; white stitching rare or occasional; resin canals not visible; adaxial surface similar, but the reticulate veins usually less conspicuous, and white stitching and resin canals not visible. INFLORESCENCES solitary; cataphylls rarely present, to ca. 8.3+ cm long and 0.3 cm wide, narrowly lanceolate; peduncle 1.4- 5.1 cm long, P/S=0.20-ca. 0.50; spathe at anthesis ca. 8.9-9.0 cm long, 2.9-3.5 cm wide, dark green to yellow-green (paler distally) , internally cream; spathe drying densely granular with moderately abundant white stitching and resin canals visible especially toward the base externally, internally ± evenly and moderately granular, with longitudinal secretory striations to at least 4/5 to apex; acumen of spathe to 0.7+ cm long. Stipe of spadix ca. 0.4-0.5 cm long; spadix 7.1-10.3+ cm long, the fertile male portion 1.0-1.7+ cm wide; sterile male zone ca. 0.7-0.8 cm long; fertile female portion of spadix 2.4-4.2 cm long, F/S=0.33-ca. 0.41, ca. 0.9-1.2 cm wide; fertile male flowers 1.2-2.0 mm long, 0.7-1.3 mm wide, irregularly polygonal, columnar; sterile male flowers 1.0-2.4 mm long, 1.2-2.3 mm wide, anvil- shaped, ± substipitate, drying darker distally; female flowers 0.9-2.0 mm long, 0.7-1.1 mm wide, the stylar canals not countable. INFRUCTESCENCES: Ripe fruits unknown. Seeds unknown.


Premontane Moist Forest, Premontane Wet Forest, and Lower Montane Wet Forest life zones.


Endemic to the Sierra Nevada de Santa Marta, Cesar and Magdalena Departments, Colombia.

Distribution Map

  • Native distribution
Found in
  • Southern America Western South America Colombia


  • 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
  • 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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