H.B.K., Nov. Gen. & Sp. 5:114.1821
P. wetmorei Standl.
Tendriled liana; stems terete, ± glabrous, bearing conspicuous brown lenticels; sap at periphery milky, not copious. Leaves trifoliolate; petioles to 14 cm long, with marginal ribs above, glabrate; leaflets broadly elliptic, acuminate or acute at apex, attenuate to rounded at base, 5-15 cm long, 3-12 cm wide (to 23 cm long and 11 cm wide as juveniles), glabrate but with axillary tufts below, subentire to remotely crenate-dentate. Thyrses small, helicoid, to 7 cm long, solitary or clustered at nodes, often on leafless stems near the ground but occurring to 5 m high; flowers white, ca 5 mm long; petals with the scales ca two-thirds as long as petals, yellow-crested, the anterior scales bilobed, their appendages pubescent, the glands white, acute, densely pubescent; staminal cluster equaling petals; filaments densely pubescent; nectar abundant, stored near the large glands; ovary glabrous; styles pubescent. Capsules elliptic to obovate, 2 cm. long, red, short-pubescent, the 3 boat-shaped valves broadly spreading to expose seeds; seeds 1-3, black, shiny, less than 1 cm long, covered on the lower half by a fleshy white aril, dangling on a thin funiculus when fully displayed. Croat 7213, 7817.
Frequent in the forest. Flowers in the early dry season (November to February). The fruits mature from February to April.
Mexico., Guatemala, Panama, and Colombia. In Panama, known from tropical moist forest on both slopes of the Canal Zone and in Colon, San Blas, Chiriqui, Panama, and Darién, and from premontane wet forest in Panama (Cerro Jefe) and Darién,
See Fig. 346.