Brazi.: Estado do Amazonas, Rio Marmellos (affluent of Rio Ma- 
deira), Igarapé de Poté. ‘*Small treelet growing in dense stands on 
sand bars. Trunk very stout at base, up to 18 inches in diameter 
rapidly tapering upwards. Bark light grey-brown, corky. Flowers 
cream. Latex white. Trunk always grows at 20° angle from vertical 
against current. ‘Seen only in Marmellos’ according to inhabitants. 
One of most characteristic sand bar plants. In rainy season almost 
completely submerged. Common name: Oboia.’’ August 6, 1945, 
Richard Evans Schultes & Edgar Cordeiro 6514.—Same locality, near 
mouth of river. ‘‘Boia. On sand bars.’? August 12, 1945, Richard 
Evans Schultes & Edgar Cordeiro 6533. 
EXPLANATION OF THE ILLUSTRATION 
Pirate XXVIII. PARAscHEELIA ANCHISTROPETALA 
Dugand. Habit photographs. 
Photographs by R. E. Scuutres 
[ 186 ] 
