Barry Hammel 18480 Det. by: B. Hammel, VII 1992 Phenology: ST 12 April 1992 08:43N 83:36W 350 m PUNTARENAS, OSA R.F. Golfo Dulce Península de Osa. Arbol 15 m; savia resinosa-trasparente que se vuelve blanco al oxidarse.
Juan Marín 301 Det. by: B. Hammel, II 1992 Phenology: 26 November 1991 08:43N 83:35W 200-450 m PUNTARENAS, OSA R.F. Golfo Dulce Península de Osa. Arbol de 20 m x 15 cm DAP.
Juan Marín 100 Det. by: B. Hammel, XI 1991 Phenology: LR 6 August 1991 08:44N 83:35W 250 m PUNTARENAS, OSA R.F. Golfo Dulce Península de Osa. Arbol de 10 m x 5 cm DAP. Flores blancas jóvenes, maduras rojas. Frutos verdes con ápice rojo.
Barry Hammel 16784 Det. by: B. Hammel, 1989 Phenology: FL 2 May 1988 08:44N 83:36W 200 m PUNTARENAS, OSA R.F. Golfo Dulce Península de Osa. Tree to ca. 15 m tall, 25 cm dbh; petioles, young stems, etc. with clear yellowish sap (milky on contact with water); leaves glossy above; flowers white first, turning red, all male this tree and most others seen. Same as 16799 Common in primary forest at ca. 300 m.
Barry Hammel 16799 Det. by: B. Hammel, 1989 Phenology: LR 2 May 1988 08:44N 83:36W 200 m PUNTARENAS, OSA R.F. Golfo Dulce Península de Osa. Tree to 18 m tall, 20 cm dbh; male flowers white first then red; female flowers green; fruit green; common in forest at ca. 300 m; same as 16784.