Nothing is known of the chemical constituents of this genus, 

 but some African species of Dichapetalum are reputedly toxic 

 (Hegnauer: loc. cit. 4 (1966) 15). 



EUPHORBIACEAE 



Hevea guianensis Auh/et. Hist. Pi. Guian. Fr. 2 (1775) 871. 



P\H\-. Dcpartamento de Loreto, Provincia Maynas, Rio Ampiyacu, Pucu 

 Urquillo and vicinity. "Tree 60 feet tail, 10 inches in diameter. Bark smooth, 

 tan-grey. latex cream." April 28, 1977. Plowman, Schultcs et Tovar 7125 

 (Alpha Helix Amazon Expedition 1976-77, Phase VII). 



A field chemical examination revealed that this species of 

 Hevea is devoid of alkaloids. 



Hieronyma colombiana Cuatrecasas in Rev. Acad. Col. Cienc. 8 

 (1951)298. 



Colomhi.a: Comisaria del Putumayo, Paramo de San Antonio, 3000-3200 m. 

 '\Small tree. Fruit edihie, for making wine also." February 13, 1942. Schuhes 

 3253. 



The Kamsa Indians of Sibundoy, who call this plant ssna-hu- 

 sha, make an infusion of the bark and leaves to cure ''chandra, "a 

 skin eruption. 



Celastraceae 

 Maytenus laevis Reissek in Martius, Fl. Bras. 1 1, pt. I (1861) 19. 



Coi.omhia: Comisaria del Vaupes. Rio Kubiyu, Savannah Kanenda. "Small tree. 



Flowers white. "September 27-October 20, 1966. Schuhes. Raffaufei Soejarto 

 24266. 



This species is the famous chuchuhuasca of the Peruvian 

 Amazon. The bark is believed to be a strong stimulant when taken 

 in infusion. 



Cyrillaceae 

 Cyrilla racemiflora Linnaeus, Mant. I (1767) 50. 



Colombia: Comisaria del Vaupes, Rio Kudu\ari, Cerro Yapoboda. October 28, 

 1951 . Schuhes et Cabrera 14472. — Rio Kananari, Cerro Isibukuri. "Tree 10 feet 

 tall. "January 23-25. 1952. Schuhesef Cabrera 15034. — Rio Kubiyu, Savannah 



263 



