BOMBACACEAE 
Septotheca Tessmannii Ulbrich in Notizbl. Bot. 
Gart. Berlin 9 (1924) 129, t. 3. 
This gigantic, upper Amazonian tree, very rare indeed 
in collections, has hitherto only been observed, never 
collected, in Colombian territory (Schultes in Bot. Mus. 
Leafl. Harvard Univ. 12 (1946) 118). The two collec- 
tions cited below establish beyond any doubt that this 
concept, described from material from the Rio Ucayali 
in Loreto, Peru, and found by Ducke and by Schultes 
near Tabatinga, Amazonas, Brazil, a few miles from 
Leticia (Ducke in Bol. Técn. Inst. Agron. Norte 4 
(1945) 21-22), is a prominent element of the vegetation 
of certain areas of the Amazon band of the Colombian 
trapécio amazonico and must be added to our enumera- 
tion of Colombian plants. 
In November 1948, I returned to the locality of these 
two collections and discovered that the colony of trees 
from which they were gathered no longer exists. The 
current of the Amazon at this point has recently wrought 
such destruction by washing away several hundred feet 
of bank that the mouth of the Boiauasst has a different 
configuration than formerly. (Plate X XLX, upper fig.) 
Cotompia: Intendencia del Amazonas, Trapécio amazénico, mouth 
of the Rio Boiauasst, alt. about 100 m. ‘‘Enormous tree; buttress 
roots. Flowers yellowish green, mucilaginous. Sapotilla.’’ October 
1945, Richard Evans Schultes 6888.—Same locality. “‘Sepals green- 
yellow. Tree 80 ft. tall, great buttress roots. Zapoterana.’’ October 
27, 1946, Richard Evans Schultes §& George A. Black 8612. 
STERCULIACEAE 
Herrania albiflora Goudot in Ann. Sci. Nat. sér. 
3, 2 (1844) 230, t. 5, figs. 1-10. 
The specimen cited below, one of the earliest collec- 
tions of the species, was identified as Herrania albiflora 
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