Philodendron urraoense Croat
  • Willdenowia 40: 121 (2010) 


Notes: Distribution: Colombia

General Description

Epiphytic or hemiepiphytic vine.
Juvenile plants with internodes elongate, more than 10 cm long, the epidermis yellow brown, smooth, moderately glossy, longitudinally folded. Leaves with petiole 18–28 cm long, 1–1.7 cm diam. midway, drying c. 1 cm diam., blackened; blade broadly ovate-sagittate, 22–23 cm long, 18–20 cm wide, 1.1–1.2 × longer than wide, 0.8– 1.2 × as long as petiole, drying dark olive-green; anterior lobe 13–16 cm long, broadly rounded; posterior lobes 8–10 cm long, 6–8 cm wide; sinus narrowly hippocrepiform, 6–7 cm deep, 2.5–3 cm wide; all veins drying concolorous with the blade above, much darker than the blade below; primary lateral veins 2 pairs; basal veins 4–5 pairs, the 3–4 lowest pairs joined for 1–2 cm at the base. Adult plants with stems rooting at the nodes; internodes elongated, 1–6 cm long, 1.5–2.5 cm diam., drying yellow-brown with longitudinal ridges. Leaves erect; petiole subterete, 22–68 cm long, 7–15 mm diam., drying blackened; blade ovate-sagittate, generally  widest near the petiole attachment and tapering towards the apex, 44– 67 cm long, 22–37 cm wide, 1.5–2.5 × longer than wide, 1–2.1 × as long as petiole, acuminate at apex, deeply and prominently lobed at base, drying dark olive-green and weakly glossy on both sides; anterior lobe 33–50 cm long, tapering towards the apex; posterior lobes 10–18 cm long, 8–16 cm wide, sometimes curving inwards and overlapping; sinus narrowly triangular, 6–15 cm deep; midrib broad-flattened above, convex below, drying concolorous above, much darker than surface below; primary lateral veins 5–7 pairs, arising at 50–65° angle, flat above, slightly raised below; minor veins fine, moderately distinct; basal veins 4–7 pairs, all free to the base. Inflorescences 4–8 per axil; peduncle 2.5–12 cm long, 1–3 mm diam., drying blackened; spathe greenish white or creamy white at anthesis, drying blackened, 5.8–7 cm long, 1–1.3 cm diam., broadest toward apex on the blade portion, flattening to 2.8–3.2 cm wide, the tube 6–9 mm diam.; spadix 5.5–6.2 cm long, greenish; staminate portion 3–3.5 cm long, 7 mm diam., pistillate portion 2.7–3.7 cm long, 5 mm diam.; pistils 4–5 locular, 1.5 mm long, 0.8–1 mm diam., subrounded to pentagonal from the apex; ovules 2–3 per locule, basal, 0.2 mm long (including the funicle), the funicle about as long as the ovule; the entire spadix drying blackened.

Diagnostic Description

Philodendron urraoense is a member of P. sect. Philodendron sect. Macrobelium subsect. Macrobelium and is characterised by its hemiepiphytic climbing habit, the internodes usually longer than broad and drying yellow-brown with longitudinal ridges, petioles subterete and shorter than blades and drying blackened, blades ovatecordate and drying somewhat blackened with a narrow, triangular sinus and with the basal veins free to the base or nearly so as well as by the cluster of up to 8 moderately small greenish white,  long-pedunculate inflorescences.

Habitat

Premontane rain forest life zone.

Distribution

Endemic to Colombia (Antioquia).

Distribution Map

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

  Bibliography

 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.