196 BRITISH AND AMERICAN FISSIDENS. 
basi conica oblique subulato-rostratum, capsula vix brevius, 
e cellularum seriebus erectis 32 conflatum, dentibus translu- 
centibus rubrum, margine annulo majusculo albido mox revo- 
lubili fimbriatum.  Peristomii dentes rubri, bifidi, cruribus 
inæqualibus, dense articulatis, superne papilloso-scabris. Ca- 
lyptra subulato-conica, uno latere fissa, operculi longitudinem 
æquans, fuscidula. Sporæ minute, olivaceæ. 
From its nearest ally F. Hornschuchii, Mont. (F. Brasilien- 
sis et serrulatus, Hornsch.) this is distinguished by its much 
smaller size and by the paucity of its leaves, which are of a 
different shape, more evidently denticulate, and with larger 
areole, Inthe peculiar conformation of its leaves, and in the 
presence of a distinct annulus it differs perhaps from all 
others of the genus. In aspect it is not unlike Dicranum viri- 
dulum, Eng. Bot., t. 1368, butthat is a state of Fissidens bry- 
oides, essentially distinguished by the margined leaves. F. 
Blozamiis one of the smallest of the genus. 
Tab. IX. A. Fissidens Bloxami. Fig. 1. Plants; nat. size. 
J. 2. Plants ; magn. f. 3. Operculum. f. 4. Calyptra. f. 5. Por- 
tion of the peristome. ff. 6—11. Leaves, from different parts 
of the stem ; all magn. f. 12. Apex of aleaf; more highly 
magn. 
Fissidens obtusifolius, (Wils.) dioicus ; foliis 6—10 (in caule 
sterili 20) subovalibus brevissimis abtesis evanidinerviis in- 
tegerrimis immarginatis, seta terminali, capsula erecta sub- 
elliptica, operculo conico brevi. (Tab. IX. B.) 
Has. On the hedges of a dripping rock, Cincinnati, J. G. Lea, 
Esq., 1843. 
Caules fertiles vix lineares, steriles ieoslinigne longiores. 
Folia dissita, apice rotundata, ultra medium conduplicata ; 
perichætialia longiora oblonga, siccitate subincurva, læte viri- 
dia, areolis rotundis, minimis. Seta sublinearis. Capsula 
basi obconica, siccitate sub ore constricta. Peristomium ru- 
brum. Opereulum rubellum. Calyptra dimidiata. Flos mascu- 
lus terminalis. 
Tab. IX. B. Fissidens obtixiulum. Fig. 1, Plants; nat. 
size. f. 2—5. Plants; magn. 
