198 NEW MUSCI 
ciliation is far longer, and whose nerve is very distinct, as well as 
by the longer pedicels and more inclined capsules. 
PLAGIOCHILA, Nees et Mont. 
1. P. macra, Tayl. Caule laxe cæspitoso, surculis adscendentibus, 
subsimplicibus, rectiusculis; foliis remotis, semiverticalibus, 
curvato-patentibus, anguste obovatis, obtusis, apice denticulatis, 
margine utroque recurvo, ventrali integerrimo, vix decurrente ; 
calyce terminali, ex angusta basi elongata ovato, truncato, hine 
marginato, ore ciliato-dentato, hinc fisso. 
On Mosses: on Pichincha. Prof. W. Jameson. Dec., 1846. 
Shoots pale olive, an inch or more long. Leaves distant by . 
their own length, convex. Cellules rather large. Pedicel ex- 
serted by the length of the calyx. Capsule oblong. Calyx 
subcompressed, scarcely alate, but with an opaque suture on the 
upper side. The leaves are far narrower than in P. divaricata, 
Lind. as well as more distant, and their denticulation is more 
minute ; the calyx, too, has a narrower base, and is marginate on 
one side with a spurious ała. 
2. P. fragilis, Tayl. Caule cæspitoso, erecto, subramoso, apice in- 
curvo; foliis madore fragilibus, arcte imbricatis, secundis, 
erectis, obcordatis, dentatis, margine dorsali recurvo decurrente, 
ventrali basin usque dentato. 
On Pichincha. Prof. W. Jameson. Feb., 1847. 
Patches pale olive. Stems about one inch long, very slender. 
Leaves crowded, obcordate or ovate, with a shallow division on the 
top, with segments slightly recurved ; the dentation irregular ; the 
older leaves mostly erdse or broken; those at the summit crowded 
into a flattish incurved capitulus; the dorsal margin recurved 
and tumid, the venfral toothed to the very base, and even below 
it on a decurrent process. This approaches near to P. Ji- 
faria, Sw. (Lind. Sp. Hep. t. xxxvi.), it is, however, a smaller 
plant, has the leaves far more wide at their tops, where they are 
divided by a shallow sinus; besides, the ventral margin is toothed: 23 
to the very base. 
