Philodendron dominicalense Croat & Grayum
  • Ann. Missouri Bot. Gard. 84: 434 (1997) 


Notes: Distribution: SW. Costa Rica

General Description

Hemiepiphytic; internodes coarsely white-striate beneath each node, somewhat soft, drying semiglossy, 2.5--10 cm long, 2--5 cm diam., gray-green, drying yellow-brown, epidermis fissured closely; roots moderately few per node, to ca. 30 cm long, drying 2--3 mm diam., reddish brown, semiglossy, sharply ridged; cataphylls soft, 16--29 cm long, weakly to sharply 2-ribbed, green to pale red, drying thin, brown, persisting semi-intact at upper nodes; LEAVES: petioles 37--74 cm long, (averaging 51 cm long), 1.5--2 cm diam., subterete, weakly spongy, medium green, weakly flattened near apex adaxially, surface light green streaked; blades ovate-cordate, acuminate at apex, prominently lobed at base, 41--46 cm long, 19--37.5 cm wide (1.1--1.7 times longer than wide), upper surface dark green, semiglossy to weakly glossy, drying dark brown, lower surface semiglossy, much paler, drying yellow-brown; posterior lobes rounded, 12.5--15 cm long, about as broad as long; sinus hippocrepiform, 8--11 cm deep; midrib flat to raised, paler than surface above; basal veins 5--6 per side, with the uppermost free to base, second basal vein coalesced no more than 1 cm, (2)3--4 coalesced 2.5--5 cm; posterior rib not at all naked or naked up to 2.5 cm; primary lateral veins 4--6 per side, raised or sunken, darker than surface, drying dark brown below; interprimary veins in part sunken, the remainder flat but visible below; minor veins alternately strongly or weakly visible, with the more prominent veins weakly stitched below, arising from both the midrib and primary lateral veins. INFLORESCENCES 2 per axil; peduncle 8--9 cm long, 1--1.5 cm diam., fleshy, drying dark brown; spathe 14--14.5 cm long, weakly constricted above the tube, green throughout, narrowly acuminate at apex, drying dark brown outside; spathe tube 5.5--6.5 cm long, 2--2.3 cm diam.; spadix sessile; to 11.7 cm long; pistillate portion cylindrical, broadest midway, 1.2--1.3 cm diam., weakly tapered in both directions; staminate portion 8.5--9 cm long; fertile staminate spadix broadest at sterile portion, constricted to 9--10 mm ca. 1.5 cm above base, then clavate upward, bluntly tapered at apex, 10--11 mm diam. in upper one-third, 7--8 mm diam. 1 cm from apex; sterile staminate portion 12--13 mm diam.; pistils 1.6 mm long; ovary 5--6-locular, 0.9 mm diam., with sub-basal placentation; ovules 1 per locule, contained within transparent, gelatinous matrix (no true envelope), 0.3--0.4 mm long, longer than funicle; funicle 0.2--0.3 mm long, with a tuft of trichomes near base, style 0.7 mm diam., similar to style type B; style apex flat to concave; the androecium truncate, more or less prismatic, margins mostly irregularly 5-sided, 0.7--1.1 mm long; thecae oblong, 0.4 mm wide, more or less parallel to one another, contiguous. PREADULT leaves with petioles 17--20 cm long; blades to 31 cm long and 15 cm wide.

Habitat

Premontane rain forest.

Distribution

Endemic to southwest Costa Rica on the Pacific slope in the vicinity of the type locality along San Isidro-Dominical road.

Distribution Map

 
  • Native distribution
Found in
  • Southern America Central America Costa Rica

  Bibliography

  • 1 Hammel, B.E. & al. (2003). Manual de Plantas de Costa Rica 2: 1-694. Missouri Botanical Garden Press, St. Louis.
  • 2 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.
  • 3 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.
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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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