650 
MTJSCI. (MOSSES.) 
within the perich. leaves ; lid conical, pointed. — Rocks, very common 
along the Alleghany Mountains. 
3. Cr. conferta, Funck. Leaves oblong-lanceolate, acute or 
obtuse, the upper with a short diaphanous point; capsule immersed, 
oval; teeth of peristome much perforated, orange-yellow ; lid convex , 
minutely beaked. — White Mountains, Oahejt. 
4. O. apocarpa, Hedw. Leaves ovate-lanceolate, rather di¬ 
aphanous at the apex; capsule oval, immersed ; teeth of peristome en¬ 
tire or sparingly perforated , bright purple ; lid as in the last. — Rocks. 
5. O. Mullleilbcrgii, Bridel. Leaves linear-lanceolate, ob¬ 
tuse, concave, when dry incurved, the nerve vanishing below the 
point; pedicel exserted ; capsule erect, oval; teeth of peristome linear, 
deeply cleft; lid awl-shaped from a conic base ; calyptra large, mitri- 
form, longitudinally plaited, crenate-laciniate at the base. (Physco- 
mitrium pusillum, Bruch Sch.) — Plant 4"-6" high. — Rocks, Penn. 
141. RACOmiTRIUM, Bridel. Racomitrium. 
Calyptra mitriform or campanulate-awl-shaped, laciniate at base. 
Capsule terminal, regular. Peristome of 16 thread-shaped and 
deeply 2 - 3-cleft teeth. Lid conical, awl-shaped. Inflorescence 
dioecious : sterile fl. terminal, gemmiform. (Composed of paicos, 
a shred , and pirplov, a little cap ; from the torn calyptra.) 
I* fascidllare, Bridel. Stems decumbent, 3'-5 f long, 
the clustered branches short; leaves elongated-lanceolate , spreading, 
the entire margins revolute ; capsule exserted, oblong-oval; lid conic- 
awl-shaped ; calyptra papillose.— Rocks, alpine tops of White Moun¬ 
tains, New Hampshire, Oakes , Tuckerman. 
2. R. lanngillosillYl, Bridel. Steins elongated, slender, 
somewhat pinnately branched; leaves lanceolate, tapering into a long 
and diaphanous eroded-toothed point; capsule small; pedicel tuber- 
culate. — With No. 1. 
3. R. microc&l'poil, Bridel. Stems ascending, branched; 
leaves spreading, lanceolate , pointed ; the upper with their points diapha¬ 
nous and somewhat toothed, the areola elongated and very sinuous.— 
With the foregoing; a smaller plant. 
4. R. Sudeticillll, B. & S. The less fasciculated branches, 
and the longer leaves with a more square areola, distinguish this spe¬ 
cies from the last, which it much resembles. — Rocky places in sub- 
alpine districts, New England, Oakes. 
15. HEDWIGIA, Ehrh. Hedwigia. 
Calyptra conic. Capsule terminal, globose. Peristome none. 
Lid plano-convex. Inflorescence monoecious : ster. fl. axillary, 
