Dicranum.] BRYACE^ 75 



linear-lanceolate, serrate on the back and on the borders, nar- 

 rowly costate to below the apex ; areolation narrow, enlarged 

 and broadly rectangular at the base and the angles ; perichaetial 

 leaves tubulose, abruptly narrowed into a short point : capsule 

 ovate-oblong, erect or slightly cernuous, striate, strumose at the 

 oolluui, tawny yellow; pedicel slender, someAvhat flexuous, 

 yellowish above, pale red below ; lid pale red, long-subulate ; 

 annulus none. — Brid. Bryol. Univ. i. 814 ; Bryol. Eur. t. 79. 

 D. Bo7)jeani, DeNot. ; Braithw. 1. c. 149, t. 21, B. 



Var. Brewerianum, Lesq. Leaves narrower, scarcely 

 undulate, falcate-secund ; cells of the areolation longer. — 

 Mem. Calif. Acad. i. 7. 



Hab. Peat bogs of Northern Ohio and Penns3'lvania {Lesquereux)\ 

 Lake Winnipeg {Bourgecai); Vancouver Island (Macoun), Tlie variety 

 in mountains of California {Brewer). 



A rare or rarely observed species, resembling a variety of D. scoparinm, 

 but differing in the slender erect stems, the soft leaves loosely areolate at 

 base, the inner periohtetial leaves short-apioulate, the short pale soft dis- 

 tinctly striate capsule, etc. 



20. D. Schraderi, Web. & Mohr. Tufts wide, compact, 

 yellowish green ; stems often very long, erect : leaves close, erect, 

 appressed and subsecund, the upper bright green, the lower yel- 

 lowish, lanceolate, obtusely pointed, deeply undulate, sharply 

 dentate on the back and borders from the middle upward ; cells 

 of the areolation small, rhomboidal-quadrate and obscure in the 

 upper part, long and narrowly rectangular toward the base, 

 abruptly much dilated and orange-colored at the angles : capsule 

 slightly longer than in the last species, more obscurely striate ; 

 peristome small; annulus simple, narrow. — Crypt. Gei*m. 177; 

 Schwaegr. Suppl. i. 1G6, t. 41 ; Bryol. Eur. t. 80. 



Hab. Common in peat bogs; mountains and cold regions. 



21. D. Spurium, Hedw. Robust, loosely cespitose, strav- 

 color or yellowish green ; stems erect or decumbent, brittle : 

 leaves interruptedly tufted, the lower short, ovate-lanceolate, 

 concave ; the upper longer, linear-lanceolate, undulate from be- 

 low the middle upward, rugose, papillose on the back, serrate on 

 the border and on the subpercurrent costa; cells of the areola- 

 tion small, ovate-quadrate and obscure in the upper part, nar- 

 rowly linear in the middle and down to the base near the costa, 

 round-quadrate, enlarged and dark-colored near the angles; 

 perichsetial leaves tubulose, shortly subulate-pointed : fruit soli- 



