MUSCI. (MOSSES.) 81 
To p. 628. 
3. Didymodon cylindricus, Br. & Sch. Diccious; stems cwespi- 
tose, 4-10" high, branched; leaves linear-acuminate, spreading, flexuous, 
more or less undulate on the ace margins, costate to the apex ; capsule nas 
rowly cylindrical, annulate, its walls thin; pedicel slender, aps operculum 
ros from a conic base ; teeth of the peristome remotely articulated. — Ches- 
ter County, Peaneyivaia James. (Eu.) 
To p. 648. 
0. Mnium spinuldsum, Bryol. Europ. Hermaphrodite, caspitose , 
border ; oul oval, rather pendalous ; operculum conic, shortly rostrate ; 
pedicels aggregated. — White Mountains of New Hampshire, James.— Very 
near M. spinosum, Bryol. Eurep., found in British America by Drummond, but 
that has a dicecious inflorescence. (Eu.} 
To p. 655. 
Pilétrichum ero reagent n. sp. Dicecious; main stems 2/—3! 
long, rhizoma-like, creeping, filiform, sparingly radiculose, with distant minute 
triangular-lanceolate eae scarcely visible to the naked eye; primary branches 
rather slender, erect, ray long, simple or irregularly and pinnately ramu- 
lose; leaves pale green, 9 loses Salita in 5 distinct spiral rows, lanceolate, 
a ag strongly , their upper half with the —— 
rrulate, recurved or platter-edged, pe point = Dene, eseenumiens areolatio 
ri coed ooapaiae flexuose ; the angles ti 
fertile end numerous, eee —* From a tree on a haan 
. Flori ex herb. Gra. 
viatovamad péndulum, n. sp. Diccious (7); stems 7/-8! lon 
divided, divisions with distant aa all filiform, pendulous and flexile; 
leaves at the base of the earns broader a 2-ranked, ected: narrower and 
erect-patent every way, all li ] 
rulate point, costate ; ak ae poets pailos 0 on a ee back the tlt 
close, linear, with a small disk of 
angles ; capa small, oblong-oval, on a ‘short se pedicel (1%- ie lone) 
peris double, the exterior 16 Saenieeeiae — ated teeth, beeain 
fissile ive the medial line; the interior 1 
what broad membrane ; — conic-rostellate ; oi specs large ; pericheth 
small; vaginula emergent; cal not seen. — rm Louisiana, Teinturier, 
Prof. Riddell. — A pale-yellowish Moss, with scone stems and branches. 
To p. 661. 
yurelia Careyana, add: — Capsule oval, with a conspicuous col- 
lum, inclined, aanulate ; cilia of the inner peristome nodulose , operculum hem- 
isp 
pering into a | 
herical-conic, pedicels 3-4" pee aroma Pamoat Frost. 
Hypnum palustre, L. (see p. 671) has also been found, with the last, 
by Mr. Frost. 
