Flora of Barro Colorado Island

Cayaponia racemosa

(P. Mill.) Cogn. in A. DC., Monogr. Phan. 3:768. 1881

Monoecious tendriled vine; stems grooved, glabrate to villous; tendrils 2-branched below the middle. Petioles 1.5-6 cm long; blades entire or lobed, cordate to acute at base and abruptly decurrent onto petiole, 5-15 cm long, 3-15 cm wide, the lobes 3 or 5 (or 7), obtuse to acumi­nate, the lower surface and midrib of upper surface pu­berulent to hispid, the upper surface very asperous, with erect to scabrous pustular-based trichomes, the margins with remote gland-tipped teeth; lower midrib with a broad flattened rib along its margin. Flowers unisexual, solitary or few in exile or in axillary racemes, the pistil­late flowers slightly smaller than staminate flowers; calyx broadly campanulate, ca 6 mm long, pubescent, the lobes 5, ovate; corolla greenish-white to yellow, 4-5 mm long, densely tomentose on outside, with long slender tri­chomes inside; stamens apparently 3 (4 fused in 2 pairs); filaments free; anthers coherent, one of them 1-celled; staminodia minute in pistillate flowers; ovary 3-locular (or 1-locular by abortion); stigmas 3, dilated, reflexed. Berries ellipsoid to ovoid, 1.3-2 cm long, 8-10 mm wide, orange to red at maturity, the surface smooth, glabrous; seeds usually 2 or 3, compressed-ellipsoid, ca 8 mm long, orangish-brown, roughened. Bailey 577.

A weed of clearings, possibly once common on the island but probably no longer occurring there. Flowers and fruits throughout the rainy season and in the early dry season (July to January). The fruits mature mostly from November to May.

Standleyreported the species to be frequent in thickets (1928).

Florida and Mexico to Panama and Colombia and across northern South America to Venezuela, Guyana, Brazil, and Peru; Trinidad, West Indies. In Panama, known from tropical moist forest in the Canal Zone, Bocas del Toro, Colon, Veraguas, Coclé, Panama, and Darién and from premontane wet forest in Chiriqui (Boquete).