Philodendron rubromaculatum Croat & D.C.Bay
  • Novon 18: 445 (2008) 


Notes: Distribution: Colombia

General Description

Hemiepiphytic; stem appressed-climbing; internodes 3–6 cm x 5–10 mm, sometimes weakly flattened on one side, light yellow-green, epidermis semiglossy, drying smooth, reddish tan to red-brown; roots few at each node, smooth, drying dark brown; cataphylls 6–8.5 x ca. 1.5 cm, sharply 2-ribbed, rounded at apex, light yellow-green, drying reddish tan or red-brown, deciduous. LEAVES spreading; petioles 3.5–6 cm x 2–4 mm (dry), broadly and bluntly sulcate, light green, drying yellowish tan to reddish tan with loose wrinkled epidermis; blades elliptic, subcoriaceous, acuminate at apex, attenuate to truncate at base, 10–14.4 x 3.5–6 cm, 2–3x longer than wide, 1.9–2.5(–3.2)x longer than petiole; adaxial surface dark green, semiglossy, drying dull olive-green; abaxial surface pale yellow-green, drying reddish tan or reddish brown with minute red punctations; midrib broadly rounded (almost flat), paler than blade, drying light tan adaxially, narrowly rounded and paler abaxially, drying much paler; all other veins obscure on both surfaces. INFLORESCENCES solitary; peduncle terete, 6–9.2 cm x ca. 2 mm (dry), slightly longer than petiole, semi-glossy, light green, drying olive-green; spathe curved, apiculate, not constricted, 4.2–5.5 cm, uniform in width, 8–11 mm wide (dry), drying light reddish tan; spathe blade white to yellow outside; spathe tube yellow-green outside, spadix cylindrical, 4.2–4.4 cm; pistillate portion yellow, 1.8–2 cm, fairly uniform in width, 3–4 mm wide (dry); staminate portion 2–3.5 cm; sterile staminate portion 4–6 mm, slightly narrower than pistillate portion and fertile staminate portion; pistils 2–2.4 x 1.4–1.8 mm, ovary 5-locular, ovules with basal placentation, 2 per locule. INFRUCTESCENCE unknown.

Diagnostic Description

Philodendron rubromaculatum is a member of subgenus Philodendron, section Macrobelium, subsection Glossophyllum, series Glossophyllum characterized by its appressed-climbing hemiepiphytic habit, deciduous cataphylls, and small elliptic blades that are pale yellow-green abaxially and dry reddish tan with red punctations (hence the epithet from the Latin ‘‘ruber’’ meaning red and ‘‘maculatus’’ meaning spotted). Also distinctive are its small, yellow-green inflorescences with yellow female flowers.
Philodendron rubromaculatum is somewhat similar to P. longipes Engler as they both have elliptic blades with obscure veins and small, slender, cylindrical inflorescences. However, P. longipes has much larger blades that are never punctate and dry light olive-green on both sides, cataphylls that persist at the bases, and inflorescences that are green on the spathe tube and yellow-green on the spathe blade, with green female flowers.

Habitat

Tropical rain forest transition to Premontane (T-rf/P), growing in dense regrowth forest.

Distribution

Philodendron rubromaculatum is endemic to Colombia and is known only from the type locality on the western slopes of the Cordillera Occidental, in the Bajo Calima region.

Conservation

IUCN Red List category. Conservation for Philodendron rubromaculatum must be considered as Near Threatened (NT) according to IUCN Red List criteria (IUCN, 2001). There is no reason to assume that it is exceedingly rare because only a tiny fraction of the Bajo Calima region has been studied, but it has not been collected elsewhere from other sites in Colombia.

Distribution Map

 
  • Native distribution
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 Croat, T.B., Bay, D.C. & Yates, E.D. New Species of Philodendron (Araceae) from Bajo Calima, Colombia. Novon; a Journal for Botanical Nomenclature. St. Louis, MO 18, 452 (2008).

 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.