CATALOGUE. 347 
AULACOMNION PALUSiRE, Schweeg. | 
Hab.—Twin Lakes, on bogs; very common. 
PuHILONOTIS MARCHICA, Brid. 
Hab.—Twin Lakes, in springy places. 
PuILonoTis Fontana, (Linn.) Brid. 
Hab.—Twin Lakes, Mount Graham, Arizona, side of brooks. 
PHILONOTIS FONTANA, Var. GRACILIS. 
Hab—Mount Graham, Arizona; springy localities. 
PHILONOTIS CALCAREA, Breh. & Sch. 
Hab.—Twin Lakes and Santa Fé Creek, New Mexico, by the side of 
small streams. 
TIMMIA MEGAPOLITANA, Hedw. 
Hab.—Twin Lakes, on shaded rocky ground. 
PoLYTKICHUM JUNIPERINUM, Hedw. 
Hab.—Twin Lakes, on moist ground. 
Myvuretta sutacea, Brch. & Sch.—Densely tufted; stems very 
slender, filiform, fragile. Leaves pale, glossy green, yellowish when old, 
closely imbricated, very concave, roundish-ovate, obtuse, nerveless, 
obscurely serrate at the apex, denticulate towards the base; areolation 
roundish ; capsule suberect, oval oblong, tapering below, of a reddish- 
brown; peristome white; operculum conical. 
Hab.—Twin Lakes, on wet banks; not common in a fruiting condition. 
PSEUDOLESKEA ATROVIRENS, Dicks.—In loose patches, dioicous ; stem 
prostrate, irregularly branched, incurved, slender, filiform; leaves imbri- 
cated, secund, ovate-lanceolate, acuminate, subserrulate; margin recurved ; 
nerve thick, sub-continuous; areole small, oval. 
Hab.—Twin Lakes, among other mosses on trees. 
Tuurpium BLranpowun, Web. & Moh. 
Hab.—Twin Lakes, in meadows. 
ELopium PALuposouM, Sulliv. 
Hab.—Twin Lakes, in wet and boggy stations. 
CLIMACIUM DENDROIDES ?, Web. 
Hab.—Twin Lakes, in bogs and wet places; sterile. 
BRACHYTHECIUM SALEBROSUM, Hoffm. 
