Philodendron longipedunculatum Croat & M.M.Mora
  • Aroideana 27: 119 (2004) 


Notes: Distribution: Colombia (Chocó)

General Description

Hemiepiphyte, near ground, flowering at ca. 1.7 m; stem 2 m long, 3--4.5 cm diam., grayish green; epidermis flaking, light brown, drying matte, minutely and deeply ribbed (the ribs minutely undulate); leaf scars grayish; internodes 2--2.5 cm long; roots 3--4 mm de diam; cataphyll 28--32 cm long, unribbed or bluntly 2-ribbed near apex, fleshy, slightly swollen at base, deciduous. LEAVES dispersed over most of the length of the stem; petiole more or less cylindrical, 81--93 cm long, drying 6--8 mm diam., light green tinged grayish, with dark green intermittent lines, with narrow purple ring at apex, drying dark brown, matte, finely dark-striate; sometimes purplish spotted in the lower 20 cm, drying dark brown; sheath unusually long, 12--13 cm long; blade ovade, abruptly and narrowly acuminate at apex, deeply lobed at base, narrowly apiculate at apex, ca. 56 x 39cm, 1.5 times longer than wide, broadest just above at point of petiole attachment, thin, dark green and glossy, above, light green and semiglosy to matte below, drying yellowish brown with occasionally grayish green streaks above, uniformly yellow-brown below, with the margins that dry undulate; anterior lobe ca. 41 cm long posterior lobes ca. 19 x 17.5, broadly rounded at apex; sinus spathulate, ca. 15 cm deep, 2 cm wide; midrib raised on both surfaces, light green; basal veins 8--10 per side, each heavily branched, 1st--3rd free to base, 4th fused 1 cm, 5th and higher fused to 3cm; posterior ribs weakly curved, naked for 1 cm; primary lateral veins 10--11 pairs, heavily branched, especially in lower 1/3 of each lateral vein, weakly quilted-sunken and much paler than surface above, drying darker than surface, raised and concolorous below, drying paler than surface; interprimary veins almost as distinct as primary lateral veins; minor veins drying visible but not markedly prominulous. INFLORESCENCE solitary, protected by the petiole sheath; peduncle subcylindrical, ca. 17 cm long, ca. 5 mm diam. midway (dry), light green, dark-green-intermittent-lineate, with purplish spots restricted to near the apex, drying blackish; spathe ca. 17.5 cm long, externally glossy, dark pink on tube, cream on spathe, short-lineate with scattered purplish spots throughout (lineations whitish except green abaxially), internally glossy whitish to cream and white, punctate with yellow resin canals, drying dark brown to blackish and matte; spathe tube ca. 8 cm long, 2.9 cm de diam., spathe blade 9.5 cm long, 1.5 cm de diam when furled.; spadix ca. 16.5 cm; staminate portion white, 10--11 cm long, 1.2--1.4 cm diam.midway, sterile portion 2 cm long, 1.4 cm de diam; pistillate portion pale yellow, ca. 5.5 cm long, 1.5 cm de diam; pistils 4 mm long; ovary prominently beaked at apex, the lower swollen portion 1.5 mm long, the slender beaked portion 2 mm long, the stigma globular 0.5 mm diam.; locules uncertain probably 4--5 per ovary; ovules basal 2--3 per locule; 0.6--0.7 mm long; funicle slightly longer than ovary.

Hemiepiphyte, near ground, flowering at ca. 1.7 m; stem 2 m long, 3-4.5 cm diam., grayish green; epidermis flaking, light brown, drying matte, minutely and deeply ribbed (the ribs minutely undulate); leaf scars grayish; internodes 2-2.5 cm long; roots 3-4 mm diam.; cataphylls 28-32 cm long, unribbed or bluntly 2-ribbed near apex, fleshy, slightly swollen at base, deciduous. LEAVES dispersed over most of the length of the stem; petioles more or less terete, 81-93 cm long, drying 6-8 mm diam., light green tinged grayish, with dark green intermittent lines, with narrow purple ring at apex, drying dark brown, matte, finely dark-striate; sometimes purplish spotted in the lower 20 cm, drying dark brown; sheath unusually long, 12-13 cm long; blades ovate, abruptly and narrowly acuminate at apex, deeply lobed at base, narrowly apiculate at apex, ca. 56 x 39 cm, 1.5 times longer than wide, broadest just above point of petiole attachment, thin, dark green and glossy, above, light green and semigloss-y to matte below, drying yellowish brown with occasionally grayish green streaks above, uniformly yellow-brown below, with the margins that dry undulate; anterior lobe ca. 41 cm long, posterior lobes ca. 19 x 17.5 cm, broadly rounded at apex; sinus spathulate, ca. 15 cm deep, 2 cm wide; midrib raised on both surfaces, light green; basal veins 8-10 per side, each heavily branched, 1st-3rd free to base, 4th fused -1 cm, 5th and higher fused to 3 cm; posterior ribs weakly curved, naked for 1 cm; primary lateral veins 10-11 pairs, heavily branched, especially in lower l/3 of each lateral vein, weakly quilted-sunken and much paler than surface above, drying darker than surface, raised and concolorous below, drying paler than surface; interprimary veins almost as distinct as primary lateral veins; minor veins drying visible but not markedly prominulous. INFLORESCENCE solitary; peduncle subterete, ca. 17 cm long, ca. 5 mm diam. midway (dry), light green, dark-green-intermittent-lineate, with purplish spots restricted to near the apex, drying blackish; spathe ca. 17.5 cm long, externally glossy, dark pink on tube, cream on spathe, short-lineate with scattered purplish spots throughout (lineations whitish except green abaxially), internally glossy whitish to cream and white, punctate with yellow resin canals, drying dark brown to blackish and mane; spathe tube ca. 8 cm long, 2.9 cm de diam.; spathe blade 9.5 cm long, 1.5 cm de diam. when furled.; spadix ca. 16.5 cm; staminate portion white, 10-11 cm long, 1.2-1.4 cm diam. midway, sterile portion 2 cm long, 1.4 cm de diam.; pistillate portion pale yellow, ca. 5.5 cm long, 1.5 cm de diam.; pistils 4 mm long; ovary prominently beaked at apex, the lower swollen portion 1.5 mm long, the slender beaked portion 2 mm long, the stigma globular 0.5 mm diam.; locules uncertain probably 4-5 per ovary; ovules basal 2-3 per locule; 0.6-0.7 mm long; funicle slightly longer than ovary.

Diagnostic Description

Characterized by growing as a low-climbing hemiepiphyte, by its long, cylindrical petioles with a purple ring at apex, the relatively long sheath, ovate-cordate, markedly bicolorous blades with pale, heavily branched major veins and by its long-pedunculate inflorescences with slender beaked ovules, a short, globular style and 2-3 short basal ovules per locule.

Habitat

It is rare in the forest and the unique individual found was near the tip of Cabo Corrientes in an open area, near a creek.

Distribution

Known only known from Colombia in the vicinity of Cabo Corrientes, and probably is endemic to Chocó.

Philodendron longipedunculatum is a member of P. subgenus Philodendron sect. Calostigma, subsect. Macrobelium, series Macrobelium and is known only known from Colombia in the vicinity of Cabo Corrientes, at near sea level, and probably endemic to Choco. It is rare in the forest and the only collection was near the tip of Cabo Corrientes in an open area, near a creek.

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 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.
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eMonocot
http://e-monocot.org
eMonocot. (2010, 1st November). Retrieved Wednesday, 8th February, 2012, from http://e-monocot.org.
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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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