ity, ause said to have been imported from the region of Iquitos in 
adjacent Peru. 
Examination of the leavesof Isertiahypoleuca from the same 
population from which Schultes 8207 was taken indicate the 
presence of sitosterin, d-amyrin and taraxasterol (Lau-Cam, 
C.A. in Phytochem. 12 (1973) 475). 
CUCURBITACEAE 
There is increasing evidence that this family has members 
which are toxic and which may contain highly interesting 
biodynamic principles as yet uninvestigated. 
Anguria umbrosa Humboldt, Bonpland et Kunth, Nov. Gen. et 
Sp. Fi. 211817) 321; 
VENEZUELA: Estado de Carabobo, Hacienda de Cura, near San Joaquin. Alt. 
480-1200 m. 
**Rhizome said to be poisonous. Common name: pasana."’ July 5-8, 1918. 
H. Pittier 7931. 
This collection indicates, with no explanatory detail, that the 
‘*rhizome’”’ is considered to be toxic in Venezuela. The vernacu- 
lar name in Venezuela is pasana. 
Cayaponia racemosa Cogniaux in De Candolle, Monogr. Phan. 3 
(1881) 768. 
EL SALVADOR: Departamento de Ahuachapan. Vicinity of Ahuachapan. Alt. 
800-1000 m. *‘Said to be poisonous, especially for cattle. Sandia de culebra, 
hierba coral, camara, taranta. Jan. 9-27, 1922. P. C. Standley 19724. 
As yet, no important constituents have been reported from 
Cayaponia, except fatty oils from the seeds (Hegnauer 3 (1964) 
619). This report from El Salvador (Altschul, S. von R. ‘‘Drugs 
and Foods from Little Known Plants — Notes in Harvard Uni- 
versity Herbaria’’ 1973, 293), however, bears chemical investi- 
gation, especially in view of the interesting use in the Colombian 
Amazonia of C. ophthalmica R. E. Schultes in treating con- 
junctivitis (Schultes, R. E. in Bot. Mus. Leafl. Harvard Univ. 20 
(1964) 324). A spot test for alkaloids indicated a negative result 
for Cayaponia ophthalmica. 
126 
