TO THE KEW MUSEUM. , 945 
` 111. Zlais melanococea, Gaertn. Caiané, L. G. Forests at the mouth 
ofthe Rio Negro. August, 1851. (Spadix with fruits.) Stem scarcely 
any, rarely erect. Fruits scarlet. The name ‘melanococca’ is very in- 
appropriate. } 
112. Iriartea exorrhiza, Mart. Marshes in forests on the Rio Negro. 
(Spadix and fruit, better than formerly sent.) 
113. Euterpe sp. Assaí do Rio Negro. (Spadix with fruit; por- 
tion of trunk; portion of frond.) Moist forest in the angle between 
the Solimões and the Rio Negro, abundant. May, 1851. Trunk 81 
feet from base to insertion of fronds. Fronds 8 feet 6 inches; pinnæ 
2 feet 6 inches, about seventy-eight pairs. Fruit black, 4-4 inch 
diameter. 
The Assaf do Pará differs from this in its smaller size; the trunk 
rarely reaching 30 feet, generally leaning, and so slender that it will 
only bear the weight of children, while on this of the Rio Negro men 
climb to the very summit ; and in the decidedly larger and glaucous fruit. 
I think there is too considerable difference in the fronds, but without 
specimens of the Pará plant I cannot state it accurately. 
Note.—I called the Para plant Euterpe edulis, but it requires to be 
re-examined, as I had no other authority than the names in the collec- 
tion at Kew. If it be really Z. edulis, then the Rio Negro Assaí is as- 
suredly not Z. oleracea ; for the latter is said to have a larger fruit than 
the former. May not the heights of these Euterpes have been exag- 
gerated? (Vide Kunth, Syn. 178.) 
114. Cocura dulcis, MSS. Herb. 1219. Sapopema and portion of 
stem (about first branch). 
115. Wasp’s nest from the Rio Solimóes. The materials of this are 
entirely vegetable, though man was not the architect; and it is so pretty 
that I think you will like to have it. 
116. Pod of the Ingd-agé (or Great Ingá).. Herb. 1651. Bio So- 
limões. June, 1851. Pulp copious, very sweet. The sides of the 
Pod have collapsed considerably in drying. This is the largest and 
handsomest of all the Ingás. My flowering specimens were gathered 
from a tree 40 feet high by 2 feet thick. The flowers are white, in 
globular heads about the size of a cherry, and scattered over the tree 
in such profusion that they only allow the young leaves, of the most 
delicate pink, to appear here and there ; they have besides a delicious 
odour of cinnamon, with which the shores of the Solimóes are quite 
