Philodendron jacquinii Schott
  • Syn. Aroid.: 90 (1856) 


Notes: Distribution: Mexico to N. South America, W. Cuba, Cayman Is.

General Description

Hemiepiphytic vine; stem scandent, green to gray-brown, glossy, setose-pubescent; leaf scars conspicuous, 1 cm long, 1 cm wide; internodes elongate, 6--25 cm long, 0.8--1.5 cm diam., longer than broad, brownish gray, semiglossy, weakly asperous, epidermis paper-thin, sometimes peeling with age, drying gray-green to yellowish green, matte, sometimes almost blackened, larger stems drying yellow-brown and finely ridged; roots few per node, short, ca. 1 mm diam., light brown, sparsely scaly; cataphylls unribbed, semiglossy, 6--10 cm long, light green, translucent, drying cream-colored, deciduous intact; petioles 7.5--44.5 cm long, 5--10 mm diam., subterete, medium green, weakly glossy, narrowly and obtusely sulcate adaxially, surface setose-pubescent, often puberulous; blades broadly ovate-cordate, thin, chartaceous, acute to shortly acuminate, sometimes mucronate at apex (the acumen sometimes apiculate, 1--3 mm long), cordate at base, (10.5)11.5--39 cm long, 7.5--28 cm wide (0.99--1.8 times longer than wide), (0.6--1.85 times longer than petiole), usually about equal in length to petiole, broadest near point of petiole attachment, upper surface dark green, matte to subvelvety to weakly glossy, lower surface moderately paler, weakly glossy to almost matte, moderately paler; anterior lobe 8.3--27 cm long, 9--28 cm wide (1.6--3.4 times longer than posterior lobes); posterior lobes more or less rounded, 3--13.5 cm long, 3.4--13.6 cm wide, directed inward at maturity, rounded or obtuse; sinus more or less narrowly parabolic; midrib broadly convex, concolorous above, broadly convex to round-raised, often setose-pubescent near base, slightly paler below; basal veins 3--6 per side, with 0--1 free to base, 1--2 coalesced 0.5--2.5 cm; posterior rib not naked or briefly naked for 0.5 cm (rarely to 1.5 cm); primary lateral veins 2--3(4-5) per side, departing midrib at a 45--55º angle, more or less straight to the margins, prominently impressed to weakly convex above, convex to round-raised below; minor veins arising from both the midrib and primary lateral veins; tertiary veins obscurely visible to raised and conspicuous, darker than surface below. INFLORESCENCES erect, 1 per axil; peduncle (2)4--15 cm long, (2)3--6(7--13) mm diam., green, dark-striate, glabrous; spathe 10--16.5 cm long, (0.96--2.3(2.7--3) times longer than peduncle); spathe blade green outside, red inside; spathe tube inflated bulbous, green outside, 4 cm long, white or green inside; spadix sessile; 8--13 cm long, narrowly rounded at apex; pistillate portion 3--3.5 cm long, 3.5 cm long in front, 3 cm long in back, 3.5 cm diam. throughout; staminate portion 9.2 cm long; fertile staminate portion 1.5--1.6 cm diam. at base, 1.1 cm diam. at middle, 1 cm diam. ca. 1 cm from apex; sterile staminate portion narrower than the pistillate portion, 1.2--1.5 cm diam.; pistils 6.5--7.2 mm long, 2 mm diam.; ovary 4-locular, locules ca. 1.3 mm long, ca. 0.6 mm diam., with sub-basal placentation; ovules 2 per locule, contained within transparent, gelatinous matrix (no true envelope), 0.6--1 mm long, as long as or longer than funicle; funicle 0.4 mm long, (can be pulled free to base), style similar to style type B; style apex quite rounded; styles usually elongated to 5 mm long, sometimes essentially sessile; stigma hemispheroid to sometimes somewhat globular, lobed, 3.3 mm diam., 1.5 mm high, covering entire style apex; the androecium truncate, prismatic, some oblong, margins irregularly 4--6-sided, 1--1.7 mm long; thecae oblong, 0.5 mm wide, more or less contiguous; sterile staminate flowers irregularly 4--5-sided, 2.2 mm wide. INFRUCTESCENCE usually pendent, often from leafless stems; peduncle 7--15 cm long, recurved; spathe falling free; spadix (2.5)5--9(14) cm long, (1.5)2.5--7 cm wide; berries greenish when immature, pale orange to red to reddish orange when mature, irregular, 1 cm long, 5 mm diam.; seeds 4--6 per berry, white, ovoid, 4 mm long, 3--4 mm diam., moderately sticky. JUVENILE plants with petioles margins vaginate-winged almost to one-half their length; blades narrow ovate-cordate.

Habitat

Mostly in Tropical moist forest but also in Tropical dry forest, Premontane moist forest, and Premontane wet forest life zones.

Distribution

Ranges from Mexico to Panama on both slopes of the Continental Divide to northern Colombia, Venezuela, and the Guianas, as well as western Cuba and the Cayman Islands.

Distribution Map

 
  • Native distribution
Specimens
Found in
  • Northern America Mexico Mexico Gulf
  • Mexico Northeast
  • Mexico Southeast
  • Mexico Southwest
  • Southern America Caribbean Cayman Is.
  • Cuba
  • Central America Belize
  • Costa Rica
  • El Salvador
  • Guatemala
  • Honduras
  • Nicaragua
  • Panamá
  • Northern South America French Guiana
  • Guyana
  • Suriname
  • Venezuela
  • Western South America Colombia

  Bibliography

  • 1 Hokche, O., Berry, P.E. & Huber, O. (eds.) (2008). Nuevo Catálogo de la Flora Vascular de Venezuela: 1-859. Fundación Instituto Botánico de Venezuela.
  • 2 Nelson Sutherland, C.H. (2008). Catálogo de las plantes vasculares de Honduras. Espermatofitas: 1-1576. SERNA/Guaymuras, Tegucigalpa, Honduras.
  • 3 Hammel, B.E. & al. (2003). Manual de Plantas de Costa Rica 2: 1-694. Missouri Botanical Garden Press, St. Louis.
  • 4 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.
  • 5 Stevens, W.D., Ulloa U., C., Pool, A. & Montiel, O.M. (2001). Flora de Nicaragua. Monographs in Systematic Botany from the Missouri Botanical Garden 85: i-xlii, 1-2666.
  • 6 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
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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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