Philodendron laticiferum Croat & M.M.Mora
  • Aroideana 27: 117 (2004) 


Notes: Distribution: Colombia (Chocó)

General Description

Hemiepiphytic or epipetric, stem appresed-climbing cylindrical, 1.8--2.7 cm diam., light yellowish green and weakly glossy, promptly becoming pale grayish green, semiglossy, faintly transversely fissured and becoming pale brown; internodes as long as broad or broader than long, 1--2.6 cm long; roots strongly appresed to substratum; cataphylls sharply 2-ribbed (wings to 5 mm high), spongy, brittle, deciduous, 26--35 cm long, pale green and dark green-punctuate. LEAVES erect-spreading; petiole 23--56 cm long, 1.6--2 x 1.3--1.4 cm diam. at middle, broader than thick, spongy, obtusely flattened above, medium green, densely dark-lineate, with dark green ring at apex; blade ovate-oblong, to obovate-oblong (narrower at base), acuminate at apex, attenuate, narrowly rounded to subcordate at base, 20--64 x 15--26 cm, with the margins more or less undulate, subcoriaceous, dark green and semiglossy above, light green to yellowish and weakly glossy below; sinus more or less arcuate in subcordate blades; midrib flattened and slightly paler than surface above, narrowly rounded, slightly paler than surface and dark green short-lineate below; basal veins 3--4 pairs; primary lateral veins 11--15 pairs departing midrib at a 50--65º, obtusely sunken and concolorous above, thicker than broad, convex and concolorous or darker than surface below; minor veins visible not distinct; laticifers visible. INFLORESCENCE 1--2 per axil; peduncle 8--21 cm long, 1.2--1.5 cm diam.; spathe 13--18 cm long, greenish white in the blade, pinkish in the tube outside, white in the blade and red in the tube inside; spadix 13.3--17 cm long; staminate portion 9.3--11 cm long, white; pistillate portion 4--6 cm long, pale green. INFRUCTESCENCE inmature somewhat flattened with hexagonal fruits; seeds 5 per berry, ovoid, 1.5 mm long, green. JUVENILE plants differ by having obovate-elliptic blades which are rounded to subcordate at base.

Hemiepiphytic or epipetric; stem appressed-climbing, terete, 1.8--2.7 cm diam., light yellowish green and weakly glossy, promptly becoming pale grayish green, semiglossy, faintly transversely fissured and becoming pale brown; internodes as long as broad or broader than long, 1-2.6 cm long; roots strongly appresed to substratum; cataphylls sharply 2-ribbed (wings to 5 mm high), spongy, brittle, deciduous, 26-35 cm long, pale green and dark green-punctate. LEAVES erect-spreading; petioles 23-56 cm long, 1.6-2 x 1.3-1.4 cm diam. at middle, broader than thick, spongy, obtusely flattened above, medium green, densely dark-lineate, with dark green ring at apex; blades ovate-oblong, to obovate-oblong (narrower at base), acuminate at apex, attenuate, narrowly rounded to subcordate at base, 20-64 x 15-26 cm, with the margins more or less undulate, subcoriaceous, dark green and semiglossy above, light green to yellowish and weakly glossy below; sinus more or less arcuate in subcordate blades; midrib flattened and slightly paler than surface above, l1arrowly rounded, slightly paler than surface and dark green short-lineate below; primary lateral veins 11-15 pairs departing midrib at 50-65° angle, obtusely sunken and concolorous above, thicker than broad, convex and concolorous or darker than surface below; minor veins visible not distinct; laticifers visible basal veins 3-4 pairs; INFLORESCENCE 1-2 per axil; peduncle 8--21 cm long, 1.2-1.5 cm diam.; spathe 13-18 cm long; spathe blade greenish white outside, white inside; spathe tube pinkish in the tube outside, red inside; spadix 13.3-17 cm long; staminate portion 9.3-11 cm long, white; pistillate portion 4-6 cm long, pale green. INFRUTESCENCE immature somewhat flattened with hexagonal fruits; seeds 5 per berry, ovoid, 1.5 mm long, green.

Diagnostic Description

Characterized by its appressed-climbing habit, short internodes, sharply 2-ribbed spongy cataphylls, the spongy, petioles which are broader than thick and have a dark green ring at apex, the mostly elongated blades which dry yellowish green and have conspicuous laticifers as well as by the greenish white spathes which are pinkish in the tube. Philodendron laticiferum is very similar to P. pseudoauriculatum however, the latter species differs by having shorter cataphylls, sulcate petioles which are proportionaly longer and narrower blades that tend to dry darker than those of P. lacticiferum. Besides, P. laticiferum differs by having thinner blades with very conspicuous laticifers.

Habitat

Generally found on tree trunks, often at 2--6 m above the ground, or on rocky cliffs near the coast.

Distribution

Only known from Colombia in the vicinity of Cabo Corrientes, and probably is endemic to Chocó. It is occasional in Cabo Corrientes.

Philodendron laticiferum is only known from Colombia in the vicinity of Cabo Corrientes, from near sea level to 60 m, and probably is endemic to Choco. It is occasional at Cabo Corrientes and is generally found on tree trunks, often at 2-6 m above the ground, or on rocky cliffs near the coast.

Distribution Map

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

  Bibliography

  • 1 Govaerts, R.H.A. (2011). World checklist of selected plant families published update. Facilitated by the Trustees of the Royal Botanic Gardens, Kew.
  • 2 Mora, M. Las Aráceas de Cabo Corrientes, Costa Pacífica del Chocó, Colombia. Undergraduate Thesis. (2002).
  • 3 Croat, T.B. & Mora, M.M. New Taxa of Araceae from Cabo Corrlentes in Choco Department of Colombia. Aroideana; Journal of the International Aroid Society 27, 130 (2004).

 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
Global Biodiversity Information Facility
http://data.gbif.org
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eMonocot
http://e-monocot.org
eMonocot. (2010, 1st November). Retrieved Wednesday, 8th February, 2012, from http://e-monocot.org.
  • C 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
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