CATALOGUE. 409 
eastward. On wet rocks and roots, West Humboldt Mountains, Nevada ; 
6,000 feet altitude. (1,456.) 
Brachythecium asperrimum, Mitt. Britisli Columbia, (Lyall, Douglas.) 
On a stream bank in Secret Valley, East Humboldt Mountains, Nevada ; 6,000 
feet altitude. (1,457.) 
Brachythecium rivulare, Br. & Scli. Central and Western Europe ; 
Newfoundland and Canada; New Knoland, Pcnnsylvani;! and Wisconsin; 
Rocky Mountains of Britisli Aiiicrlra; Kolzclxu' Sonnd. S< ream-bank in Fre- 
monfsPass, East Humlxddi Monnlains, Xcvada ; 6,500 i'rc\ altitiul(\ (1,458.) 
BRACnyTHECiUM COLLINIIM, Hclil. Coiilral Europe; British America, 
(Drummond;) Cascade M(mntnins, (Lyall ;) Y()semii(> Valley. On stream- 
banks and rocks in the East Ilnmboldi jMomitains, Xevadn, and in the 
Wahsatch and Uintas; 5-9,000 feet altitnde. (1,459.) 
Brachythecium salebrosum, Hoffm. All Kumpc. Kotzcbue Sonn<l ; 
Washington Tenifory, (Lyall;) Saskatchewan, (Bourgean ;) ami common 
eastward. At a warm spring in Goose Creek Valley, Nevada ; 5,500 feet 
altitude. (1,460.) 
Brachythecium LvEtum, Br. & Sch. Common eastward; Yosemite 
Valley. On a shaded stream-bank in the Wahsatch; 8,000 feet alti- 
tude. (1,461.) 
Brachythecium albicans, Neck. All temperate Europe; Rocky ^lount- 
ains of British America, (Drummond, Bourgeau.) On rocks at head of Bear 
River, Uintas ; 9,500 feet altitude. (1,462.) 
Brachythecium Utahense, James. Synoicum ; pusillum tenerum laxe 
csespitulosum ; caule repente semiunciali copiosc radiculigero ; ramis ramnl- 
isqne brevibus laxinscnle foliatis; foliis erecto-patcntibns oblongo-lanceolatis 
sensim tenui-acutatis arctius pellncide lineari-nreolatis, cellulis ani;ulnri])ns 
quadratis griseo-granulosis, ad mcdinm cestatis, toto margine serratis; peri- 
chaetialibus erectis ecostatis raptim acuminatis grossins serratis; capsula 
oblongo-ovali subsymmetriea annulatn in pcdicello .-3-4-lineari la3vi crecta ; 
operculo brevitcr conico ol)tusi); pe'ristomio generis. — Not unlike/?. coUinum 
and B. Ilillehrandi, 1)ut somew liat snuiller and more delieate than either, 
differing from the tirst in its elongate-lanceolate leaf and erect symmetrical 
capsule, from the second in its smooth pfMlice], and fn»m])otli in its syiio'cious 
inflorescence. On samlstone rocks overlianging a dry stream-bed, near 
Hanging Rock Station, Echo Canon, Utah; 6,000 feet altitude. (1,463.) 
