NEW MUSCI AND HEPATICÆ. 329 
described. The inconvenience to naturalists of having the 
same species given under two different names by two 
different investigators appears more than balanced by 
the advantage of having two original views of the same sub- 
ject. To some it may seem quite superfluous the number 
of times I have attached the name of Dr. Jameson to the 
species : I think it, however, too feeble an expression of my 
gratitude for the zeal with which, at my request, he has con- 
tinued, in a distant land, to supply fresh materials for the 
admiration of Botanists. 
Payscomirrivum, Bridel. 
1. P. Jamesoni, Tayl. Caule brevissimo, erecto, subsimplici, 
foliis erectis, ovato-lanceolatis, acuminatis, concavis, mar- 
gine incurvo, integerrimo, nervo evanescente; capsula 
erecta, obovata, sub-apophysata, operculo minuto, plano. 
—On Pichincha, Prof. W. Jameson, Nov. 1846. 
Stems reddish. Leaves light green, adpressed, the margin 
of the upper part variously incurved,  Pedicels slender, ge 
about one inch long. The apophysis of the capsule is best — 
Sbserved in aged “nanas Within the mouth of the — 
capsule is an annular membrane, whose top is opaque and : 
Wnish-red, and shews irregular cells, the representatives | 
ofa Peristome. By its entire leaves, whose nerves disappear | 
before their summits, this approaches to Gymnostomum He o 
| Tayl, but the leaves are fewer, more erect, and 
With larger acuminated points, while the apophysis to the =. 
le is far less considerable. - | 
Zxcopox, ‘Hook. et Tayl. 
Me atus, Tayl. Caule cæspitoso, erecto, dicho- 
no foliis imbricatis, subsquarroso-pa entibus, oblongo 
aus, apice denticulatis, margine. fui nervo aj | 
- aom demum axillari ; | 
