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Araceae
Philodendron coriaceum Croat & D.C.Bay
SUMMARY
Hemiepiphytic or terrestrial, trailing over the ground; stems appressed-climbing or scandent; internodes semi-glossy, 1.5–13.5 cm x 4–8 mm, longer than broad, medium or dark green to purplish brown, drying golden to red or rusty brown with wrinkled, sometimes flaky epidermis; roots usually 2 per node, sometimes highly branching, red-brown; cataphylls 15–18.5 cm, unribbed or bluntly 2-ribbed, D-shaped in cross section with bluntly rounded apex, light green to yellowish green, often tinged red, drying pale reddish tan and wrinkled, deciduous. LEAVES erect; petioles 6–11 cm x 3–5 mm (dry), D-shaped to broadly sulcate, medium green, tinged red, semiglossy, drying yellow-green, somewhat red with loose, wrinkled epidermis; blades ovate, thick and coriaceous, obtusely acuminate at the apex, obtuse at base, 12–21 x 5–12 cm, 1.6–2.3(–2.6)x longer than wide, (1.3–)2–2.5(–3.2)x longer than petiole; adaxial surface glossy, dark green, drying glossy, green or olive-green, abaxial surface paler, drying glossy and paler than adaxially; midrib flat and pale yellow-white adaxially, round-raised, paler than blade and tinged red abaxially; primary lateral veins etched adaxially, darker abaxially, 13 to 18 per side and very close together (ca. 1 cm apart), departing midrib at 30º–40º angles, drying concolorous and raised on both sides; cross veins numerous, minute, perpendicular, weakly etched adaxially, scarcely visible abaxially, drying concolorous and wrinkled on both sides. INFLORESCENCES erect, 1 per axil; peduncle 3–5 cm x 3– 8 mm (dry), much shorter than petiole, green, drying reddish olive; spathe semiglossy, thin and longtapered, 10.4–18 cm, drying red-brown; spathe blade pale green outside and inside; spathe tube medium green sometimes tinged rose outside, red-violet inside, with reddish orange resin canals inside tube; spadix long-tapered, white, 8–15.5 cm; pistillate portion 1.6– 2.1 cm long on back, 2.3–6.5 cm long on front, 8– 18 mm diam. (dry); staminate portion 5.7–9.7 cm x 6–10 mm from base to ca. 1 cm from apex where it begins to gradually taper (dry), narrower than pistillate portion, wider than sterile staminate portion; sterile staminate portion 0.5–1 cm x 5–7 mm throughout (dry), narrower than pistillate or fertile staminate portions; pistils ca. 8 x 7–10 mm, ovary 6- to 9-locular, ovules with subbasal placentation, 2 to 3 per locule. INFRUCTESCENCES with pistillate spadix 8–9 cm, berries globular, yellow-orange with red-brown stigmas.