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Araceae
Philodendron rubromaculatum Croat & D.C.Bay
SUMMARY
Hemiepiphytic; stem appressed-climbing; internodes 3–6 cm x 5–10 mm, sometimes weakly flattened on one side, light yellow-green, epidermis semiglossy, drying smooth, reddish tan to red-brown; roots few at each node, smooth, drying dark brown; cataphylls 6–8.5 x ca. 1.5 cm, sharply 2-ribbed, rounded at apex, light yellow-green, drying reddish tan or red-brown, deciduous. LEAVES spreading; petioles 3.5–6 cm x 2–4 mm (dry), broadly and bluntly sulcate, light green, drying yellowish tan to reddish tan with loose wrinkled epidermis; blades elliptic, subcoriaceous, acuminate at apex, attenuate to truncate at base, 10–14.4 x 3.5–6 cm, 2–3x longer than wide, 1.9–2.5(–3.2)x longer than petiole; adaxial surface dark green, semiglossy, drying dull olive-green; abaxial surface pale yellow-green, drying reddish tan or reddish brown with minute red punctations; midrib broadly rounded (almost flat), paler than blade, drying light tan adaxially, narrowly rounded and paler abaxially, drying much paler; all other veins obscure on both surfaces. INFLORESCENCES solitary; peduncle terete, 6–9.2 cm x ca. 2 mm (dry), slightly longer than petiole, semi-glossy, light green, drying olive-green; spathe curved, apiculate, not constricted, 4.2–5.5 cm, uniform in width, 8–11 mm wide (dry), drying light reddish tan; spathe blade white to yellow outside; spathe tube yellow-green outside, spadix cylindrical, 4.2–4.4 cm; pistillate portion yellow, 1.8–2 cm, fairly uniform in width, 3–4 mm wide (dry); staminate portion 2–3.5 cm; sterile staminate portion 4–6 mm, slightly narrower than pistillate portion and fertile staminate portion; pistils 2–2.4 x 1.4–1.8 mm, ovary 5-locular, ovules with basal placentation, 2 per locule. INFRUCTESCENCE unknown.