EXPLANATION OF THE ILLUSTRATIONS 
Purare LXXVII. Hevea paucirtora (Spruce ex 
Benth.) Muell.-Arg. var. cortacra Ducke on the 
outskirts of Iquitos, Peru. This colony of trees 
appears to be that from which the type of Hevea 
HUMILIOR Ducke was collected. 
Photographs by Ricuarp Evans Scuutres. Courtesy 
of the Missouri Botanical Garden. 
