This plant tests alkaloid-negative with Dragendorff reagent. 
A tea of the bark is valued as a taenifuge in the Mitt area. 
The chemistry of Qualea is unknown. 
EUPHORBIACEAE 
Croton glabellus Linnaeus, Syst. Ed. X(1758)1275. 
CoLomBIA: Comisaria del Amazonas, near mouth of Rio Loretoyacu and 
Puerto Narino. “‘Fruit green. Small tree.’’ September 13-15, 
1966. R.E. Schultes, R.F. Raffauf et D. Soejarto 24149, 
Witoto Indians living in the vicinity of Leticia crush leaves of 
this tree to poultice infected cuts and sores. 
Croton glabellus has been reported to be alkaloid-positive 
(Haynes, L.J. et K.L. Stuart: Journ. Chem. Soc. 1963 (1963) 
1784, 1789). 
Croton palanostigma K/otzsch in Hooker Lond. Journ. Bot. 2 
(1843) 48. 
BRAZIL: Estado do Amazonas, vicinity of Manaos, Reserva Ducke. **Small 
tree. Flowers white’. April 11 - 14, 1972. R.E. Schultes et W. 
Rodrigues 26124 1a. 
The sap of this tree is applied to ulcers and boils to reduce 
pain. 
Mabea nitida Spruce ex Bentham in Hooker Kew Journ. 6 
(1854) 367. 
CoLoMBIA: Comisaria del Vaupes, Rio Vaupés, Mitu and vicinity. ‘*Tree 20 
feet. Fruit rusty. Alkaloid-negative.’’ September 27 - October 
20, 1966. R.E. Schultes, R.F. Raffauf et D. Soejarto 24170. 
The oil extracted from the seeds was, according to Kubeo 
informants, formerly rubbed into the scalp to prevent or delay 
loss of hair. 
BOMBACACEAE 
Bombax globosum Aub/et, Pl. Guian. Fr. 2 (1775) 701. 
COLOMBIA: Comisaria del Vaupes, Rio Kananari, Cerro Isibukuri. ‘Large 
tree, 60 - 70 feet tall. Flowers yellow-white, petals yellow to- 
232 
