398 MUSCI. Mnium. 



-f -t Leaves entire. 



3. M. punctatum, Hedw. Loosely cespitose, dark green, reddish below; 

 stems to 4 inches high, tomentose, with several erect branches, not stoloniferous : 

 leaves remote, spreading and reflexed, large, firm, round-obovate with a very narrow 

 base, the upper more crowded, obovate-spatulate, slightly emarginate and very 

 minutely apiculate, with thickened reddish margin, the purplish costa ceasing at or near 

 the top : capsule more or less pendulous, mostly solitary, ovate, pale olive-brown ; 

 operculum acutely conic-rostellate. Bruch & Schimp. 1. c., t. 387; Wilson, 1. c., 

 t. 30 ; Berkeley, Brit. Moss. t. 1 7, fig. 6, Bryum punctatum, Schreb. ; Smith, Eugl. 

 Bot. t. 1183. 



Eureka (Bolander) ; Port Discovery (Pickering) ; Alleghany Mountains and northward, and 

 European. 



* * Flowers bisexual. 



i Leaves bordered, simply serrate. 



4. M. venustlim, Mitten. Pale green ; stems an inch or two high, rigid, with 

 erect basal branches or simple, leafy : leaves erect-spreading, broadly elliptic, 

 acuminate, cuspidate with the stout excurrent nerve, acutely serrate upon the narrow 

 border ; inner perichaetial leaves narrowly lanceolate : capsule inclined or pendulous 

 (pedicels clustered, an inch long), oblong, with a broad mouth, papillose, surrounded 

 at base by a band of deep-colored stomata ; operculum depressed-conic, short- 

 acuminate. Hook. Journ. Bot. viii. 231, t. 12, B; Sulliv. Icon. Suppl. 52, t. 36. 



On shaded rocks, Ukiah, etc. (Bolander) ; Port Discovery (Pickering) ; Vancouver Island, 

 Menzies, Douglas, Lyall. 



M. DRUMMONDII, Bruch & Schimp., was collected by Hall on the Columbia River. Stem 

 simple, 1 inch high or more, with erect strict basal branches : leaves erect-spreading with the 

 apex recurved, not crisped when dry, lanceolate-obovate, acuminate-apiculate, with a narrow 

 thickened yellowish border, serrate above the middle with long acute soft teeth. Lond. Journ. 

 Bot. ii. 669 ; Sulliv. Icon. Muse. 83, t. 51. Rocky Mountains of British America to Canada and 

 the White Mountains ; also in Finland. 



M. NEVII, Muell. (Flora, Ivi. 481, and Torr. Bot. Bulletin, v. 5), is a similar species with 

 leaves crowded at the summit of the stem, reflexed-spreading, when dry erect and slightly 

 crisped, broadly ovate or orbicular with shortly acuminate usually reflexed apex, the broad yellow 

 border fimbriate with long ciliform teeth ; perichsetial leaves small, lanceolate-acuminate, entire : 

 capsule pendulous, cylindric-obloug, thickened at base ; operculum hemispheric-conic, mamillate. 

 Portland, Rev. R. D. Nevius. 



*- H Leaves bordered, the teeth in pairs. 



M. SPINULOSUM, Bruch & Schimp. 1. c., t. 394, with obovate-oblong leaves, pale green, the 

 reddish border with spinulose teeth in pairs, and capsules (2 to 6) oval-oblong with short-beaked 

 orange-colored operculum and dark red peristome, was also collected by Hall on the Columbia 

 River. European. 



35. TIMMIA, Hedw. 



Cespitose perennials, on the ground, the simple stem at length innovating at the 

 summit, tomentose below. Leaves crowded, subequal, spreading from a sheathing 

 base, long-lanceolate, smoothish, incised serrate above, the stout costa reaching the 

 apex ; areolation minute, round-hexagonal. Inflorescence terminal, monoacious, 

 with bud-like flowers of both sexes contiguous, or dioecious with the male flowers 

 subdiscoid and proliferous. Calyptra narrow, cucullate, smooth, subpersisterit. Cap- 

 sule long-pedicelled, horizontal or inclined, oblong and subpyriform ; operculum 

 convex, mamillate or depressed. Peristome double as in Bryum, the inner mem- 

 brane reaching to the middle of the lanceolate teeth and the processes divided into 

 4 nodose-filiform cilia coherent or anastomosing toward the apex ; ciliolae none. 



Three species are known, two European, both of which are found in North America, and a third 

 in Thibet. 



