ruptedly on sandy areas of presumed cretaceous age and 
which support what appears to be in general a remnant 
flora. This species is extremely variable in nature, a pe- 
culiarity which is strikingly reflected by the material 
preserved in our herbaria. 
In the Rio Igaraparand, Didymopanax Morototoni is 
known as sacha-uva. The Witotos of the same area call 
it mo-hé-ka. 
Cotomsia : Comisaria del Amazonas, Rio Igaraparand, los alrededores 
de La Chorrera. Alt. ca. 180 m. ‘‘Medium-sized tree. Flowers white,’”’ 
June 4-10, 1942, Richard Evans Schultes 3949. 
Didymopanax Spruceanus Seemann in Journ. 
Bot. 6 (1868) 132. 
This species is one of the commonest elements of the 
caatinga-association of the upper Rio Negro basin, but 
it is rare in collections. Schultes & Lopez 9380B appears 
to be the first collection from Colombian territory. The 
type was found by Spruce near Ipanoré on the Rio 
Uaupés. 
Brazit: Estado do Amazonas, Rio Negro, Jucabi (at mouth of Rio 
Curicuriari) and vicinity. ““Tree. Flowers white. In caatinga.’’ Jan- 
uary 17, 1948, Richard Evans Schultes & Francisco Lépez 9631. 
Cotoms1a: Comisaria del Vaupés, Rio Negro, at confluence of Rios 
Guainia and Casiquiare, Cafio Ducuruapo (Igarapé Rana). ““In low 
caatinga.’’? December 13-17, 1947, Richard Evans Schultes & Francisco 
Lopez 9380B. 
MyRSINACEAE 
Ardisia panurensis Mez in Engl. Pflanzenr. IV, 
236 (Heft 9) (1902) 95. 
The type of Ardisia panurensis was collected by 
Spruce at Ipanoré, a point on the Rio Uaupés not far 
from the locality of the collection cited below. This spe- 
cies has hitherto been collected in Colombia at the dis- 
tant locality of Umbria in the Comisaria del Putumayo. 
It is a rather wide ranging but seemingly rare species, 
Le | 
