drawing of Micrandra elata provided by Pax (loc. cit., t. 5). The 
illustration which is published with this text has been prepared 
after careful study of ample material assembled from European, 
American and South American herbaria and represents, we 
believe, a more accurate and complete record of the species. 
The collections McDaniel et Rimachi Y. 20204 and McDa- 
niel, Rimachi Y. et Folsom 20533 are noteworthy as being the 
first from Peru. They represent also the material collected far 
within the Amazon—some 2000 miles upstream on the Ama- 
zon—of this species which is usually found nearer the coastal 
areas. 
Cowan 38815 represents the first collection of Micrandra elata 
from French Guiana. 
Micrandra Lopezii R. E. Schultes var. microcarpa R. E. Schultes 
var. nov. 
Arbor usque ad 25 pedes alta, a Micrandra Lopezii capsula 
semineque multo minoribus (valvis siccitate ad 20 mm. longis) 
principaliter differt. 
BRAZIL: Estado do Amazonas, Rio Alary Jabaru, Igana. “Caatinga. Arvore, 7 
ms. 35 cms. Latex branco, coagulante rapido, espresso, forte e abundante.” 
November 8, 1947. Ricardo de Lemos Froes 21364 (YTypus in Herb. 
Instituto Agronomico do Norte 16829). 
In addition to the significant difference in size of the fruit (28 
mm. long in dried condition in Micrandra Lopezii, 20 mm. or 
less in this new variety), the leaves appear to be generally subcu- 
neate instead of conspicuously rounded or even strongly cordate 
at the base. 
Micrandra Rossiana R. FE. Schultes in Bot. Mus. Leafl., Harvard 
Univ. 15 (1952) 211. 
COLOMBIA: Comisaria del Vaupés, Rio Papuri, vicinity of Monfort Mission. 
Alt. c. 200 m. “Slender, infrequent trees averaging 25~30 m. in height and 50 
cm. in diameter. Bark grey, thin and hard and difficult to tap. Latex very 
scanty, coagulating to a gummy, non-elastic mass. Small tri-spermate 
capsule, resembling that of the arara-siringa [Micrandra siphonioides] but 
considerably elongated. Not well known, one or two individuals hesitat- 
ingly advancing either maha-wakpuh or buhawakpuh [Micrandra minor] 
but it is doubtful if either would be generally recognized as applicable to 
this species.” August 28, 1943. P. H. Allen 3109. 
104 
