Philodendron dominicalense

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.