OF PACIFIC COAST MOSSES. 7 



23. D. subulatum, Iledw. 



Hub. foot of Mt. Dana, 8,000 to 10,000 ft., borders of ditches and stream- 

 lets, Bol. ; Gallon Mts., Lyall. 



24. D. heteromallum, Hedw. 



Hab. slopes of a ditch cut through a bog. edge of the redwoods near Big 

 River City, Bol. ; Cascade Mts., Lyall. 



I 3. DICRANUM, Schp. 



25. D. strictum, Sclil. 



Hab. coniferous trees, Devil's Canon, Forest Hill, Bol.; Fort Colville, Lyall. 



26. D. albicans, Brch. and Schp. 



Hab. N. "W. America, Douglas. 



27. D. fuscescens, Turn. 



Hab. Redwoods, Bol. ; Spokane River, Oregon, WHkes 1 U. S. Exp.; Galton 

 Mts., Lyall. 



28. D. scoparium, Lin. 



Hab. Oregon, Withes' Exp.; and a var. foliis vix denticulatis, in California? Bol. 



29. D. palustre, Lapyl. 



Hab. Pend' Oreille, Lyall ; Vancouver Island, Wood. Mr. Bolander has sent 



it from Eureka, Humboldt County. 

 Var. foliis angustioribus, kevibus, falcato-secundis, areolatione longiori. D. 



Sreverianum, Lsqx. in litter. 

 Hab. Deep Canon, Klamath River, Brew. 



This variety is remarkable enough to be considered a proper species. Besides 

 the characters indicated above, it differs from D. palustre by its shorter stems, its 

 narrow, not at all, or scarcely undulate leaves, its more incurved, and more slender, 

 and longer capsule, the great quantity of male plants intermixed in the ctespites. 

 The male plants are slightly more slender than the fertile ones ; the flowers large, ter- 

 minal, or lateral by innovations ; the perigonial leaves broadly ovate, narrowed into a 

 pretty long point and nerved. 



30. D. majus, Schwa?gr. 



Hab. Fort Discovery, Oregon, WiHces' U. 8. Exped. 



FISSIDENS, Hedw. 



31. F. limbatus, Sulliv. 



Hab. on shaded ground, near Oakland ; common around San Francisco, 

 Bol,, Big. 



32. F. ventricosus, spec. nov. Monoicus, robustus, laxe lateque caespitosus, caespi- 



tibus nigricantibus, innovationibus junioribus apice tantum atro-viridibus. 

 Caulis ultra pollicaris, e basi divisus, divisionibus simplicibus vel parce ramo- 

 sis. Folia multijuga, conferta, erecto-aperta. cultriformia, duplicatura di- 



(7) 



