NEW MUSCI AND HEPATICÆ. 341 
ventricose base. This is one of the most specious of the 
genus; it is allied to P. ensifolia, Tayl., differing by the 
shorter, more erect shoots, the leaves more distinctly denti- 
culate at their summits, their cells far larger, their dorsal 
base not so decurrent, while the ventral presents a larger 
volution across the stem. 
MapnornECa, Dumort. 
1. M. brachiata, Tayl. Caule adscendente, bipinnato ; foliis 
imbricatis, patentibus, oblongis, convexis, obtusissimis, 
integerrimis, basi undulato-crispatis ; lobulis subimbricatis 
ligulato-ovatis, margine undulatis, basi ciliatis; stipulis 
oblongis rotundatis, cauli adpressis, basi decurrente la- 
cniato-ciliatis ; perichætii lateralis sessilis foliis subinte- 
gerrimis, lobulis stipulaque subdivisa ciliatis.—On Pi- 
chincha; Prof. W. Jameson. Nov. 1846. ; 
Stems 4-5 inches long; shoots complanate; primary 
branches rather distant, patent, the secondary short, acumi- 
hate, recurved. Leaves convex, with recurved tops, the one 
inferior, scarcely covering one eighth of the ñext superior; 
Inferior margin by no means decurrent; lobules, with their 
tops erecto-patent, their bases applied close to the stem. - 
The perichætium about one line long, having 3-4 pairs of ; 
leaves, whose margins are sparingly denticulate, but those of - 
the lobules and of the terminating stipule strongly ciliate. 
We have not seen an authentic specimen of M. subciliata, 
Let L., collected likewise by Professor Jameson in the 
“ndes of Peru; but the characters given justify the suppo- 
sition that it differs from our species by the ovate and 
urrent leaves, the upper of which are ciliate all round — 
em margins, and all of them ciliato-dentate at the ventral - 
5 whilst the bases of the lobules and stipules are nearl 
16—See Pug. vii. p. 9 of Lehm. and Lind. ——— 
* P. lasifolium, Tayl. Caule procumbente, subpinnat 
