Philodendron hebetatum Croat
  • Ann. Missouri Bot. Gard. 84: 455 (1997) 


Notes: Distribution: Panama to Ecuador

General Description

Hemiepiphytic; stem appressed-climbing; internodes short, semiglossy, 1--4 cm long, 1.5--2.5 cm diam., longer than broad, green to gray-green, drying yellow-brown; roots moderately numerous per node, drying dark brown, ridged; cataphylls 12--35 cm long, unribbed, sometimes sharply 1-ribbed near apex (sharply 2-ribbed in South America), medium green, drying light to medium brown, persisting semi-intact at upper nodes, then deciduous with large patches of yellow-brown periderm remaining intact; LEAVES erect-spreading; petioles 27--75 cm long, 0.8--1.8 cm diam., more or less terete, obtusely flattened adaxially, spongy (in South America), dark green to gray-green, surface semiglossy to matte, transversely fissured near apex, drying pale yellow-brown; blades ovate-triangular, subcoriaceous, abruptly acuminate at apeax, cordate-sagittate at base, 24--63 cm long, 19--44 cm wide (1.1--2.3 times longer than wide), (0.7--1.2 times longer than petiole), equal to or longer than petiole, margins concave, broadly undulate, upper surface semiglossy, dark green, drying conspicuously yellow-brown, semiglossy, lower surface opaque whitish, matte, paler; anterior lobe 19.5--49.5 cm long, 14.5--42 cm wide (1.9--3.6 times longer than posterior lobes); posterior lobes 7.1--20.2 cm long, 7.3--20.5 cm wide, obtuse to rounded; midrib broadly concave, paler than surface above, thicker than broad, weakly glossy, darker than surface below; basal veins 6 per side, with 1--2 free to base, second and third veins coalesced ca. 3 cm; posterior rib naked for 2.5--3.5 cm long; primary lateral veins 6--11 per side, departing midrib at a 35--50º angle, weakly sunken above, convex and darker than surface below; minor veins moderately distinct, fine, intermittent below, arising from both the midrib and primary lateral veins. INFLORESCENCES 1--5 per axil; peduncle 4--11 cm long, 4--11 mm diam., white-lineate to coarsely white-streaked toward apex and on spathe base; spathe 11--17.5 cm long, 2--3.5 cm diam. (1.3--3.1 times longer than peduncle), white-speckled, semiglossy, constricted above the tube, 9--11 mm diam. at constriction; spathe blade green to whitish, somtimes rose-red outside, green to whitish or sometimes rose-red and white-speckled inside; spathe tube oblong-ellipsoid, 4--7 cm long, usually dark green or sometimes purple to violet-purple to red or pinkish outside, reddish to pale violet-purple (dark maroon=SoAm) inside; spadix white, cylindrical, 12.9--16.6 cm long, broadest near the base, constricted near the middle; pistillate portion whitish, cylindrical to ovoid, 3.8--8.9 cm long, 7--16 mm diam.; staminate portion 9.3--13.4 cm long; fertile staminate portion cylindrical, 8--13 mm diam., broadest at the base, narrower than pistillate and sterile portions; sterile staminate portion as broad as or narrower than the pistillate portion, 1--1.3 cm diam.; pistils glossy, 2.1--4(5.8) mm long, 1.2--2.6 mm diam.; ovary (4)5--8-locular, walls embedded with granular, crystal-like particles, locules 1.3--3.2(4.5) mm long, o.4--0.6 mm diam., with axile placentation; ovules (4)20--24 per locule, 2-seriate, 0.2 mm long, about equal in length to funicle; funicle 0.1 mm long, adnate to lower part of axillar wall, style 0.4--0.7 mm long, 1.2--2.6 mm diam., similar to style type B; style apex flat or rounded; stigma subdiscoid, 1--1.5 mm diam., 0.2--0.5 mm high, covering center of style apex; the androecium truncate, margins 4--6-sided, sometimes scalloped; thecae oblong, 0.3--0.4 mm wide, contiguous, more or less parallel to one another; sterile staminate flowers 3--6-sided, 1.5--2.5 mm long, 1.4--1.8 mm wide. INFRUCTESCENCES: Berries white, with purple stigmas; seeds 2-3,6,10--12,18--25 per locule, (1-5)8--11 mm long, 2--3 mm diam.

Hemiepiphytic; stem appressed-climbing; internodes short, semiglossy, 1-4 cm long, 1.5-25 cm diam., longer than broad, green to gray-green, drying yellow-brown; roots moderately numerous per node, drying dark brown, ridged; cataphylls 12-35 cm long, unribbed, sometimes sharply 1-ribbed near apex (sharply 2-ribbed in South America), medium green, drying light to medium brown, persisting semi-intact at upper nodes, then deciduous with large patches of yellow-brown periderm remaining intact; petioles 27-75 cm long (averaging 49.6 cm), 0.8-1.8 cm diam., more or less terete, obtusely flattened adaxially, spongy (in South America), dark green to gray-green, surface semiglossy to matte, transversely fissured near apex, drying pale yellow-brown. LEAVES erect-spreading; blades ovate-triangular, abruptly acuminate at apex, cordate-sagittate at base, 24-63 cm long, 19-44 cm wide (averaging 40.7 x 31.9 cm), 1.1-2.3 times longer than wide, 0.7-1.2 times length ofthe petioles, equal to or longer than the petioles, subcoriaceous, margins concave, broadly undulate; upper surface semiglossy, dark green, drying conspicuously yellow-brown, semiglossy; lower surface opaque whitish, matte, paler; anterior lobe 195-495 cm long, 14.5-42 cm wide (1.9-3.6 times longer than posterior lobes); posterior lobes 7.1-20.2 cm long, 7.3-20.5 cm wide, obtuse to rounded; midrib broadly concave, paler than surface above, thicker than broad, weakly glossy, darker than surface below; basal veins 6 per side, with 1-2 free to base, second and third veins coalesced ca. 3 cm; posterior rib naked for 2.5-3.5 cm long; primary lateral veins 6-11 per side, departing midrib at a 35°-50° angles, weakly sunken above, convex and darker than surface below; minor veins moderately distinct, fine, intemittent below, arising from both the midrib and primary lateral veins. INFLORESCENCES 1-5 per axil; peduncle 4-11 mm diam., white-lineate to coarsely white-streaked toward apex and on spathe base; spathe 11-17.5 cm long, 2- 3.5 cm diam. (l.3-3.1 times longer than peduncle), white-speckled, semiglossy, constricted above the tube, 9-11 mm diam. at constriction; spathe blade green to whitish, sometimes rose-red outside, green to whitish or sometimes rose-red and white-speckled inside; spathe tube oblong-ellipsoid, 4-7 cm long, usually dark green or sometimes purple to violet-purple to red or pinkish outside, reddish to pale violet-purple inside; spadix white, cylindrical, 12.9-16.6 em long, broadest near the base, constricted near the middle; pistillate portion whitish, cylindrical to ovoid, 3.8-8.9 cm long, 7-16 mm diam.; staminate portion 9.3-13.4 cm long; fertile staminate portion cylindrical, 8-13 mm diam., broadest at the base, narrower than pistillate and sterile portions; sterile staminate portion as broad as or narrower than the pistillate portion, 1-1.3 cm diam.; pistils 2.1--4 (-5.8) mIl1 long, 1.2-2.6 mm diam.; ovary (4-)5-8-locular, with axile placentation; ovules 10-20 per locule, 0.2 mm long, funicle 0.1 mm long; stigma subdiscoid, 1-1.5 mm diam., 0.2-0.5 mm thick INFRUCTESCENCES with berries white, with purple stigmas; seeds 8-11 mm long, 2-3 mm diam.

Habitat

Premontane wet forest, Tropical wet forest and Premontane rain forest life zones.

Distribution

Philodendron hebetatum ranges from Panama to Colombia (Antioquia, Cauca, Choco, Narino, Risaralda, Valle del Cauca) and Ecuador (Carchi, Esmeraldas, Pichincha) along the Pacific coast, at 0 to 1,880 m elevation in Premontane wet forest, Tropical wet forest and Premontane rain forest life zones. It is to be expected in adjacent Costa Rica. In Panama, most collections have been made at or less than 1,400 m, rarely to about 1,630 m.

Ranges from Panama to Colombia (Chocó) and Ecuador (Carchi, Esmeraldas, and Pichincha) along the Pacific coast. It is to be expected in adjacent Costa Rica.

Distribution Map

 
  • Native distribution
Specimens
Found in
  • Southern America Central America Panamá
  • Western South America Colombia
  • Ecuador

  Bibliography

  • 1 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.
  • 2 Croat, T.Bernard A revision of Philodendron subgenus Philodendron (Araceae) for Mexico and Central America Ann. Missouri Bot. Gard. 84, (1997).

 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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