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Araceae
Philodendron trojitense Croat & D.C.Bay
SUMMARY
Terrestrial or hemiepiphytic; stem scandent or appressed-climbing; internodes 4–12 3 2–3.5 cm, longer than broad, medium green, transversely fissured, becoming brown and scurfy, drying brownish tan, transversely fissured; roots few per node, drying medium brown; cataphylls to 30 cm, sharply 1-ribbed, green, drying dark reddish brown, deciduous. LEAVES erect-spreading to spreading; petioles 17– 52 cm 3 5–9 mm (dry), subterete, dark green, short dark-lineate, drying olive-green to light brown; geniculum to 3 cm, drying darker than petiole and somewhat shrivelled; blades narrow triangular-ovate, moderately coriaceous, long-acuminate at apex, shallowly cordate at base, 28–73 3 8–30 cm, 2–3.53 longer than wide, 1.3–1.63 longer than petiole, adaxial surface semiglossy, dark green, drying semiglossy and olive-green, abaxial surface matte and much paler than adaxially, drying dull and barely paler than adaxially; sinus triangular to spatulate, 0.5–5 cm deep; midrib flat and yellowish white adaxially, narrowly rounded, paler than blade, short dark-lineate abaxially; primary lateral veins 9 to 10 per side, 3 cm apart toward base to 7.5 cm apart toward apex, spreading from midrib at 60u–70u angles, downturned at midrib, curving gradually out to margins, sunken and paler than blade, drying concolorous adaxially, convex and paler than blade, drying darker than blade, yellowish brown abaxially; basal veins 2 per side, both free to base; minor veins moderately distinct, arising mostly from the midrib. INFLORESCENCES to 7 per axil, enclosed in a prophyll; peduncle 7–8 cm 3 2–5 mm (dry), medium green, faintly lineate; spathe apiculate (apiculum to 5 mm), 8–13 cm, slightly constricted above tube; spathe blade 5–6 cm, white, often with red to red-violet spots and tinged red along margin outside, burgundy toward base and white in upper 2/3 inside; spathe tube 3–5 cm, yellowish white outside, tinged red along margin, deep burgundy inside; spadix somewhat exserted at anthesis, sessile, slightly clavate, 9–11 cm; pistillate portion pale green, cylindrical, 1.5–2 cm long on one side, 2.4–3.5 cm long on the other side, 5–6 mm diam. (dry); staminate portion cream, clavate, 6.8–7.5 cm 3 8–12 mm at widest point (ca. 1 cm from apex) (dry), broader than pistillate portion; sterile staminate portion not apparent; pistils ca. 2 mm; ovary 7- to 9-locular, ovules with basal placentation, 1 per locule. INFRUCTESCENCE unknown.