112 REPORT ON THE PLANTS 
Trombétas and up one of its affluents, the Rio Aripecurd, as far as the 
first cachoeiras, or cataracts, in the months of November and December 
1849. The detailed account of the localities visited will be found in 
Mr. Spruce’s letters, inserted in this Journal, Vol. II. pp. 173, 193, 
225, 266, and 299, and at p. 82 of the present volume, as well as in 
some further extracts about to appear. The collections made up to the 
end of March 1850 were received in this country in the end of July, 
and distributed to the subscribers early in October. Another portion, 
despatched from Santarem in July 1850, reached Pontrilas in the end 
of December; it is preparing for distribution as soon as the re- 
mainder, sent off on Mr. Spruce’s leaving Santarem for Barra do Rio 
Negro, on the 7th of October, shall have arrived. This last despatch, 
now daily expected, will complete the Santarem collections, and will, it 
is hoped, be in time to be included in the following memoranda. 
The subscribers will no doubt have observed that the specimens 
maintain well their character for excellence in drying and preservation. 
Mr. Spruce’s residence at Santarem enabled him to supply many species 
in different states as to flower and fruit, including many new or rare ones 
of considerable interest, more especially among those from Obidos and 
from the Rio Aripecurü. It is only to be regretted, that, owing partly to 
his not having at the time been aware of the increased list of his subscri- 
bers, and more especially, as to the Obidos plants, owing to the diffi- 
culty of carrying with him a large stock of paper, there should still be 
so many species of which the number of specimens are insufficient to - 
supply the whole of the sets. They are, however, much more numerous 
in the despatch last received than in the preceding ones. 
The arrangement followed in the following observations is the same 
as that of the first report, the Obidos and Rio Trombétas and Aripecurá 
collections being included with those made at Santarem. 
Among the Dilleniacee are specimens of the common Curatella 
Americana, Linn., whose geographical range extends from the Tierra 
Caliente of Mexico, over the whole of tropical America west of the 
Andes, to South Brazil; for the C. çambaiba, A. St. Hil., is surely, as 
already pointed out by some botanists, a mere variety rather more 
downy in some parts than the more common form. Mr. Spruce found 
it in open campos near Santarem, where it forms a low spreading tree,. 
with the habit of an old oak. There have also been generally distri- 
buted specimens of a Davila, which appear to be a variety rather more 
