370 THE JOURNAL OF BOTANY 
« 
sule, and vegetative characters—if it really differed generically from 
other South American mosses. An examination of the areolation 
Meesiacea, as De Notaris and Schimper supposed ; as, although the 
cells in the lower part of the leaf are here and there shortly rect- 
angular or subquadrate, those in the upper part of the leaf are 
distinctly hexagonal (cfr. fig. 9). This upper areolation, and the 
shape of the leaf with its recurved margins, strongly suggested 
affinity with Bryacee. On looking through the descriptions of the 
species of Bryum given in Mitten’s Musei Austro-americani, I found 
medium exserta impositis. Hab. Andes Quitenses, in sylva Canelos 
loco Pueblo de Los Jibaros (8000 ped.) Sprucenr. 312. Caulis $ unciam 
altus. Folia lineam longa, rigida. Peduneulus 14 unciam longus, 
é is. Habitus B. Montagneani Indie orientalis, sed majus et 
inter Americanas species distinctissima.” From the clear descrip- 
identity of the two was apparent. Further, a study of the specimens 
of B. globosum showed clearly that the plant was not generically 
distinct from Brywm, but belonged to the section Brachymenium of 
that genus. 
The structure of the inner peristome, which is well seen in the 
capsules of Spruce’s collecting (nr. 812) is rather curious. e 
membrane of the inner peristome extends to beyond half the length 
stances (see 
figs. 4, 5). Under a higher magnification these longitudinal bands 
are seen to be composed of keeled ridges of the membrane, the keel 
. ese peristome, 
and from their position, and the manner in which they are keeled, 
te 
of the inner peristome; at their a ive 
i ea pex (fig. 5a), however, they 81V 
rise to no tooth-like prolongation, but are invariably: truncate. 
— each tooth of the outer peristome the membrane of the 
concave or keeled, the concavity or the keel being directed tow d 
vid — Each process is split at the apex into two or three 
sions 
structure with that of the section Brach : fees hich 
: ae : , ymenium of Bryum, W 1 
is described by Miiller (Syn. i. 242) as follows: ‘‘membrana intern? 
dentibus rudimen: is. vel nullis et cilli oo pe sf a 
