If tip,, Hill. Musci. 413 



acuiniiifito, scmiliito, aroolution liyalino, except at the anj,'les ; poricliiX>tial leaves 

 abruptly iiari'ow-acuiuinate : capsule cernuous, sliDrt-ovate, ^il)l)ous ; operculum ob- 

 tusely ncnmuuiia. — JJrachi/fheciwii collliinm, JU'Ucli Si, Schiiiip. 1. e., t. 548. 



Yoseinite Valley, sterile (^o/a?i</rr) ; East Iluniboldt Mountains, Nevada (ll'd/soii) ; Cascade 

 Mountains {Lyalf) ; Rocky Mountains from Hritish America to Colorado ami Utah ; Europe. 



12. H. Hillebrandi, Lescp Small and slender, yellowish; stem erect from an 

 irregularly subpinnately or iasciculately branched base ; leaves ovate-lanceolate, 

 long-acuminate, serrulate, the flat margin subrellexed : cai)sule suberect on a pedicel 

 a hall-inch long or more, ovate upon a broad al)ruj)t coUum, constricted below the 

 hroad oblicpie mouth when dry : jjcristome pale yellow below, wliitish above, the 

 teeth, processes and cilinUe eipial. - — Mem. Calif. Acad. i. 33. Braclii/thecium Hille- 

 brandi, Lesq. ; Sulliv. Icon. Muse. 8up[)l. 1)8, t. 74. 



On rocks, Merced Kiver, Bolnuifn: 



II. SALF.nKOsuM, Iloirm., lias liccn collected in Wasliiiif^ton Territory and Northern Idaho 

 (L,/!,//), Northeitstern Nevada, and Colorado; also in tlio Atlantic States and Euro])e. It resem- 

 hles //. /(r/iiii), Imt is stouter, inotKeeidus, and with a turf,'id gililious-ovate cernnous capsule. — 

 Wilson, Hryol. Hril. t. [)3 ; Sulliv. in Cray's Man. 2 ed. t. .I. Binchi/thcciicn salcbrosinn, Drucli 

 k Schinip. 1. c, t. f) 19. 



++ +* Pedicel routjhened. 

 = Monoecious. 



13. H. rutabulum, Linn. IJather stout, loosely cespitose, deep or yellowish 

 green ; stems 3 to 5 inches long, Avith ascending or erect sparingly divided branches : 

 leaves spreading, broadly ovate-lanceolate, acuminate, serrulate, scarcely sulcate, loosely 

 rhombic-areolate : capsule cernuous or horizontal on a very rough purple pedicel, 

 oval or oblong, subarcuate, with double annulus and large acute-conic operculum : 

 peristome orange-red, pale above, the solitary cilioloe equalling the processes and 

 teeth. — lied w. Muse. Frond, iv, t. 12. Braclii/thecium ridahulum, Brucli »t Schimp. 

 1. c, t. 543. 



West Humboldt Mountains, Nevada {lf'al.<:ri,i) ; common in the Atlantic States and Enrope. 



14. H. populeum, Iledw. Yellowish-green and silky; stems 2 or 3 inches 

 long, with ascending or arcuate branches : leaves ovate- or oblong-lanceolate, long- 

 acuminate, serrulate above, margin ilat, costa reaching to the apex : capsule cernuous 

 upon a purple pedicel slightly scabrous above, oval or elliptic, with acute-conic oper- 

 cidinn and narrow aninilus ; peristome yellow, the appendiculate ciliolio frocpiently 

 imperfect. — lledw. S[)ec. t. 70 ; Fl. l.)an. t. 25G4. Jh'achytltecinm popideuin, Bruch 

 & Schimp. 1. c, t. 535. 



In the Sierra Nevada {Ilillcbfand); Atlantic States and Europe. 



H. iiFXLivuM, Mitten, Journ. Linn. Soc. viii. 33, t. 6, found in Northern Idaho (LyaU), has 

 lanceolate long-acuminate falcate-secnnd serrulate leaves, an oval ca]isnle horizontal and at length 

 pendulous on the rather stout and very scabrous pedicel, the 2 ajipendiculate ciliolffi equalling the 

 processes and teeth. 



= = Dimcions. 



15. H. asperrimum, iNIitten. Resembling //. Intmi, but with a more rigid 

 stem, the narrower leaves less plicate, and Avith fewer quadrate cells at the broadly 

 decurrent angles, the pedicel scabrous and the conic operculum long-apiculate; ciliolae 

 slightly ap])endiculate, equalling the i)rocesses and teeth. — Journ. Linn. Soc. viii. 

 33, t. 6. //. vallium, Sulliv. & Lesq. Muse. Am.-Bor Exsicc. 2 ed. n. 506. Brachy- 

 theciiim asperrivuim, Sidliv. Icon. ^Iiisc. Suppl. 100, t. 7(5. 



On rocks in canons (no/au'lcr) ; British Columbia, Doiojlns, LiinU. 



IG. H. Bolanderi, Les<]. Broadly cespitose, pale green ; liranches elongated 

 and llexuous, or suberect and rigid, irregularly subi)innately branched : leaves 

 spreading, ovate-lanceolate, shortly acuminate, margin flat and serrulate, areolation 

 rather loose, narrow and pellucid, the alar ovate-qua<lrate ; pericluTtial leaves abruptly 



