COLLECTED BY MR. SPRUCE. 331 



tree of from 20 to 60 feet, and var. ? Jlorihunda, a tree of 60 feet, in the 

 woods of the Rio Uaupes, 



Without actual comparison with Poeppig's specimens, I cannot feel 

 certain that these two varieties belong to his species. He describes his 

 leaves as much larger (attaining the size of 8 inches by 5), but those 

 represented in his plate are not half that size ; in our var. parvifoUa^ 

 they are not above 3 inches by 2. They are almost coriaceous, some- 

 times glabrous, sometimes pubescent underneath, the glands at the base 

 are from two to five, and there are but few or none of those large spot- 

 like glands scattered over the under face of the leaf which may be ob- 

 served in several Alchorne<^, The male spikes are sometimes branched, 

 more frequently simple, but growing several together from each axil. 

 In our ytiw Jloribunda^ the leaves are larger, reaching to 5 inches by 3, 

 entire or with minute and remote glandular teeth, and there are gene- 

 rally several large, brown, smooth, spot-like glands, irregularly scattered 

 over the under surface, which is glabrous. The male spikes are nume- 

 rous and slender, generally simple. This last may possibly be a distinct 

 species, but I cannot characterize it without having seen the females. 



^^^ r 



Gardner's n, 5611, from Eio Janeiro, is the A. Iricurana^ Casar., or 



■ 



A, erytliTo^perma^ KL No. 5610 and 5612, of the same collection, 

 appear to belong to a very common Rio Janeiro species, published by 

 Martins in IS'^il, under the name of A. nemoralisy and by Casaretto in 

 1842, under that of A, Ja7iei?'ensis, and since then subdivided by 

 Klotzsch into three : A. psilorhacldsj A, intermedia^ and A. parvifoUa, 



CONCEVEIBA. 



Two or three specimens, in fruit, of the true C Gidanends, of Aublet, 

 were gathered by Mr. Spruce, near Barra do Rio Negro ; and the 

 Hookerian Herbarium contains female specimens in various stages of 

 flower and fruit, from Cayenne and Demerara. I have seen no Guiana 

 specimens of the male plant, nor was it known to Aublet, Richard, or 

 Jussieu. Klotzsch indeed gives a character, derived from males of two 

 species, but one of them at least belongs to Aparidhmium^ End!., which 

 appears to differ sufficiently from the true Conceveiha to be adopted, 

 especially if I am right in referring to the original 0. Guimiemis some 

 male specimens gathered by Mr. Spruce in the Capoeiras near Panurc, 

 on the Rio Uaupcs. The foliage is precisely the same, the inflorescence 

 is strictly terminal, as in the female, and the brads have the same large 



