Colombia: Comisaria del Putumayo, Rio Sucumbios. Conejo and vicinity April 

 2 5. 1940. Schulies 



The Kofan Indian name of Duroia hirsula in the Putumayo is 

 sha-ka-ker-na-se. 



Duroia kotchubaeoides Stevermark in Mem. NY. Bot. Card 12 

 (1965)201. 



Colombia: Comisaria del Vaupes, Rio Guainia, Puerto Colombia and vicinity. 

 "Small tree. Flowers white." October 3 1 -November 2. 1 952. Schultes Baker ei 

 Cabrera 28111. 



A Dragendorff spot test for this species is alkaloid negative. 

 The seeds are said by the natives to be poisonous when eaten. 



Duroia petiolaris (Spr.) Hooker fil. ex K. Schumann in Martius, 

 Fl. Bras. 6, pt. 6(1889)364. 



Colombia: Comisaria del Amazonas, Trapecio Amazc^nico, Rio Loretoyacu 

 October 1945. Schulies 6727. 



The Tikuna Indians assert that the seeds of this species are 

 dangerously toxic if ingested. 



Durioa saccifera {Mart.) Hooker fil. ex K. Schumann, in Mar- 

 tius, Fl. Bras. 6, pt. 6 (1889) 362, t. 146, fig. 1. 



Colombia: Comisaria del Amazonas, Rio Apaporis. Soratama and vicinity. 

 March 26. 1952. Schulies el Cabrera 16063. 



A spot test with Dragendorff reagent indicates that this collec- 

 tion is doubtfully alkaloidal. The seeds are said by the natives to 

 be toxic if ingested. 



SOLANACEAE 



Solanum hypomalacophyllum Bitter ex Pittier. Man. PI. Usual. 

 Venez. (1926) 137. 



The common name of this plant in Venezuela — borrachera — 

 indicates that it is an intoxicant (Herbarium collection: Gehringer 

 2). 



It is possible that this species of Solanum contains tropane 

 alkaloids so widespread in the family, but an analysis has appar- 

 ently not been made. 



271 



