Philodendron gonzalezii Grayum
  • Syst. Bot. Monogr. 47: 129 (1996) 


Notes: Distribution: W. Venezuela

General Description

Ligneous-stemmed, high-climbing epiphytic vine to at least 4 m on buttresses or trunks of trees, or on rocks or barks; branches pendent. Internodes 0.3-13.8 cm long, 0.3-4.7 cm wide, brownish green to gray-brown, glossy, drying yellowish to light brown or mid-brown, finely to coarsely sulcate; roots rare and few at distal nodes, to ca. 1 mm in diameter. LEAVES: Petiole (4.1-) 4.7-13.6 cm long, P/L= (0.26-) 0.28-0.47 (-0.54), extensively sheathed, the sheath involute, adnate or with the free portion prolonged to ca. 2.5 mm; unsheathed portion of petiole 0.0-1.1 cm long. Lamina (13.4-) 15.5-32.3 (-40.5+) cm long, (4.4-) 5.0-15.4 (-18.2) cm wide, L/W=(1.94-) 2.10-3.88 (-4.06), IQI= (0-) 3-8 (-9), thinly coriaceous to papyraceous, matte or glaucescent to glossy above, matte to glossy below, moderately bicolored, narrowly to broadly lanceolate, elliptic or oblanceolate (broadest in the middle third) , acute to (more commonly) gradually to ± abruptly short- to long- acuminate apically [the acumen ca. (0.3-) 0.6-1.4 (-2.4) cm long], cuneate to truncate or rounded (and sometimes slightly cordulate) basally; midrib sulcate above, convex below and sometimes becoming paler; primary lateral veins (10-) 13-17 (-19) per side, 0.1-3,3 (-4.1) cm apart, sunken above, convex below, often with conspicuous interprimaries; minor veins distinct below; abaxial laminar surface drying with the tertiary and reticulate veins prominulous and enclosing granular areolae; white stitching rare and obscure to ± abundant; resin canals obscure to evident between tertiary veins; adaxial surface similar, but the reticulate veins usually less prominulous; white stitching not evident to abundant and conspicuous; resin canals not evident. INFLORESCENCES solitary; cataphylls sometimes present, to at least 6.0 cm long and 0.4 cm wide, lanceolate; peduncle (0.3-) 1.2-1.9 cm long, P/S=0.15-0.22; spathe at anthesis 8.5-10.8 (-13.0?) cm long, (0.6-) 0.9-2.4 (-3.0?) cm wide, externally pale to deep green, pale puncture, greenish white along the margins, internally creamy white; spathe drying uniformly and very densely granular externally, sometimes with abundant white stitching, internally virtually smooth to uniformly and densely granular, often with prominent reticulate venation, with longitudinal secretory striations in basal 4/5; acumen of spathe 0.60-0.75 cm long. Stipe of spadix 0.15-0.85 cm long; spadix 8.2-9.1 cm long, the fertile male portion 0.7-0.8 cm wide; sterile male zone ca. 0.5 cm long; fertile female portion of spadix 2.0-2.1 (-3.4) cm long (to 4.8+ cm in fruit), F/S=0.22-0.25 (-0.39), 0.7-1.1 cm wide (to 2.9+ cm in fruit); fertile male flowers 0.7-1.4 mm long, 0.6-1.5 mm wide, irregularly polygonal, columnar to ± laterally compressed; sterile male flowers ca. 1.6 mm long, 1.3-1.7 mm wide; female flowers 1.3-1.7 mm long, 0.6-1.2 mm wide, the stylar canals 2-3. INFRUCTESCENCES: Ripe fruits orange (van der Werff & González 4715). Seeds 0.8-0.9 mm long, 0.25-0.30 mm wide, ± straight to slightly curved, finely striate with the striae minutely and obscurely cancellate, drying mid-brown and glossy.

Habitat

Tropical Moist Forest, Premontane Moist Forest, Premontane Wet Forest, Lower Montane Wet Forest, or (less frequently) Tropical Dry Forest life zones.

Distribution

Endemic to Venezuela in the Sierra de Aroa and the Cordillera de la Costa, and also in the southwestern corner of the country in Táchira and westernmost Apure States.

Distribution Map

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

  Bibliography

  • 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
http://araceae.e-monocot.org
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
http://e-monocot.org
eMonocot. (2010, 1st November). Retrieved Wednesday, 8th February, 2012, from http://e-monocot.org.
  • B Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
World Checklist of Selected Plant Families
http://apps.kew.org/wcsp/
WCSP 2014. 'World Checklist of Selected Plant Families. Facilitated by the Royal Botanic Gardens, Kew. Published on the Internet; http://apps.kew.org/wcsp/ Retrieved 2011 onwards
  • C See http://kew.org/about-kew/website-information/legal-notices/index.htm 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.