Philodendron cotobrusense Croat & Grayum

Hemiepiphyte; stem appressed-climbing; internodes short, thick, 1--3 cm long, 1.5--2 cm diam., mostly longer than broad, epidermis silvery gray; cataphylls to 14 cm long, sharply 2-ribbed, yellow-green, tinged pinkish, deciduous; LEAVES: petioles 32.5--35 cm long, 4--9 mm diam., subterete, firm, obtusely flattened adaxially, surface matte; blades deeply 3-lobed, margins incised to within 1.5--2 cm of base, subcoriaceous, weakly bicolorous, long-acuminate at apex (the acumen probably downturned, more or less cordate at base, 37--39 cm long, 46--52 cm wide (0.7--0.8 times longer than wide), (1--1.2 times longer than petiole), usually about equal to petiole, upper surface dark green, semiglossy, lower surface weakly glossy, somewhat paler; median lobes 30.5--32 cm long, 13--17 cm wide; lateral lobes 24--27 cm long, 9--12.6 cm wide (2.14--2.88 times longer than wide), directed more or less upward, broadly confluent to 2.5 cm with medial lobes; midrib broadly convex, closely veined above, convex below; basal veins lacking; primary lateral veins 18--19 per side, departing midrib at a 50--65Hemiepiphyte; stem appressed-climbing; internodes short, thick, 1--3 cm long, 1.5--2 cm diam., mostly longer than broad, epidermis silvery gray; cataphylls to 14 cm long, sharply 2-ribbed, yellow-green, tinged pinkish, deciduous; petioles 32.5--35 cm long, 4--9 mm diam., subterete, firm, obtusely flattened adaxially, surface matte; blades deeply 3-lobed, margins incised to within 1.5--2 cm of base, subcoriaceous, weakly bicolorous, long-acuminate at apex (the acumen probably downturned, more or less cordate at base, 37--39 cm long, 46--52 cm wide (0.7--0.8 times longer than wide), (1--1.2 times longer than petiole), usually about equal to petiole, upper surface dark green, semiglossy, lower surface weakly glossy, somewhat paler; median lobes 30.5--32 cm long, 13--17 cm wide; lateral lobes 24--27 cm long, 9--12.6 cm wide (2.14--2.88 times longer than wide), directed more or less upward, broadly confluent to 2.5 cm with medial lobes; midrib broadly convex, closely veined above, convex below; basal veins lacking; primary lateral veins 18--19 per side, departing midrib at a 50--65º angle, broadly curved to the margins, sunken above, convex below; interprimary veins almost as conspicuous as primary lateral veins; tertiary veins visible, slightly darker than surface; minor veins arising from both the midrib and primary lateral veins but mostly from midrib in upper half of blade. INFLORESCENCES to 5 per axil; peduncle 6--9 cm long, 3--4 mm diam., terete; spathe 6--14 cm long (1.8--3.5 times longer than peduncle); spathe blade creamy yellow outside, creamy white inside; spathe tube green outside, red-violet to purplish inside; spadix 9.5--12 cm long; pistillate portion yellow-green, 7--10 mm diam.; staminate portion 5--8 cm long; fertile staminate portion white, 8--12 mm diam.; ovary 6--7-locular, with sub-basal placentation; ovule sac 1 mm long; ovules 3 per locule, digitately arranged in series of 2--3, contained within transparent ovule sac, 0.2--0.3 mm long, slightly shorter than funicle; funicle ca. 0.3 mm long, (can be pulled free to base), style similar to style type B; style apex flat; stigma subdiscoid, 1 mm diam., 0.2--0.3 mm high, covering entire style apex; the androecium truncate, more or less oblong, prismatic, irregularly 4--6-sided, 0.7--1.1 mm long; thecae oblong, 0.3 mm wide, more or less parallel to one another.