Flora of Barro Colorado Island

Gonolobus allenii

Woods., Ann. Missouri Bot. Gard. 27:333,f. 1. 1940

Vine; stems and leaves sparsely pilose. Leaves opposite; petioles slender, 2-4 cm long; blades         ovate-oblong, acu­minate, deeply cordate at base, 5-10 cm long, 2-4 cm wide, with 2 or 3 minute, fingerlike glands at base of midrib. Flowers 2-4 in axillary, pedunculate clusters, 5-parted, 2-3 cm diam; peduncles 1-2 cm long; pedicels 2-3 cm long; calyx lobes linear-lanceolate, ca 7 (10) cm long, sparsely pilose outside; corolla greenish, lobed to below middle, the lobes ovate-lanceolate, 1-2 cm long; outer corona fleshy, the margin bearded. Follicles un­known. Wetmore & Abbe 202.

Collected once on BCI, but not seen in recent years. This specimen had flowers in January.

Known only from Panama. The type is from premon­tane wet forest in Coclé (El Valle); the species is known also from tropical moist forest on BCI and from tropical wet forest in Panama.