the seeds of Tachigalia paniculata as a medicine, preparing a 
strong emetic by boiling them in water. 
Tachigalia ptychophysca Spruce ex Bentham in Martius, FI. 
Brasil. 15, pt. 2 (1876) 229. 
CoLomBIA: Comisaria del Vaupés, Raudal de Jerijerimo and vicinity. July 
7, 1951. R.E. Schultes et I. Cabrera 12955. 
This species of Tachigalia is reputed to be valuable as an 
aphrodisiac: the unripe pods are boiled and eaten. Schultes et 
Cabrera 12955 represents apparently the second collection of 
this very characteristic species of Tachigalia. It is the first from 
Colombia. The type was collected by Spruce (Spruce 2022) at 
Ipanore on the Rio Uaupes in Brazil. 
EUPHORBIACEAE 
Hevea brasiliensis (Willd ex Juss.) Mueller-Argoviensis in Lin- 
naea 34 (1865) 204. 
PERU: Departamento de Loreto, Provincia Maynas, Rio Ampiyacu, Pebas 
and vicinity. “‘Tree 25 m. tall in secondary forest. Isolated.’ April 23, 1977. 
T. Plowman, R.E. Schultes et O. Tovar (Alpha-Helix Amazon Expedition, 
1976-1977, Phase VII) 6995. 
Hevea guianensis Aublet, Hist. Plant. Guian. Frang. 2 (1775) 
871. 
PERU: Departamento de Loreto, Provincia Maynas, Rio Ampiyacu. Pucu 
Urquillo and vicinity (near Pebas). ‘*Tree 60 ft. tall, 10 inches diameter. Bark 
smooth, tan-grey. Latex cream.”’ April 28, 1977. 7. Plowman, R.E. Schultes 
et O. Tovar (Alpha-Helix Amazon Expedition, 1976-1977, Phase VII) 7/25. 
In view of the report in the literature (Raffauf, R. F, A 
Handbook of Alkaloids and Alkaloid-containing Plants (1970)) 
of several alkaloids from the rubber tree, Hevea brasiliensis 
(presumably from cultivated material collected in Malaysia), 
Phase VII of the Alpha-Helix Amazon Expedition 1976-1977 
carried out analyses of the two species, H. brasiliensis and H. 
guianensis, growing in the region of Pebas, Peru, under natural 
conditions. Both species were found to be alkaloid-negative. 
Micrandra Spruceana (Baill.) R.E. Schultes in Bot. Mus. 
Leafl., Harvard Univ. 15 (1952) 217. 
185 
