BARNES NORTH AMERICAN MOSSES. 349 



yellow or orange quadrate or rectangular; costa stout, reaching % length 

 of leaf; branch leaves shorter acuminate, sharply serrate above middle, 

 borders often faintly reflexed to acumen; perigonial leaves sub-ovate, red- 

 dish at base; costa fine and short; perichsetial leaves ecostate, from a short 

 ovate base suddenly tapering to much longer, subulate acumen: capsule 

 oval, horizontally patent or cernuous, teeth pale yellow; segments rimose 

 in middle, prolonged into long and smooth cilia; seta smooth, arcuate 

 above: monoicous. Bull. Torr. Bot. Club 17:278. On bases of trees and 

 logs: Washington; Vancouver; British Columbia. 



495. Isothecium myurellum Kindb. Tufts very loose, dark green, 

 not glossy: stems creeping; branches erect, tree-like and ramose; branch- 

 lets curved, attenuate: leaves of branches appressed when dry, small, 

 ovate, blunt or short acuminate, twice serrate or denticulate all around, 

 smooth, scarcely reflexed on borders; alar cells round quadrate, middle 

 ones narrow, upper rhombic; costa three-fourths length of leaf: perichaet- 

 ial leaves ecostate, oblong, with a long denticulate horizontally patent 

 acumen and narrow cells: capsule oval oblong, inclined; segments with a 

 low basilar membrane and two short cilia; annulus double; lid conical 

 acuminate; pedicel smooth: dioicous. Bull. Torr. Bot. Club 12: 278. 

 On decaying logs and on rocks: Vancouver Island; British Columbia. 



496. Eurhynchium strigosnm Bamesi Ren & Card. Stems rather 

 more robust, stem leaves larger, longer acuminate, branch leaves more 

 elongated: capsule shorter broadly ovate. Bot. Gaz. 14: 97. 1889. On 

 logs: Lake Pend d'Oreille, Idaho. 



497. Eurhynchium strigosam fill lax Ren. & Card. Form robust, re- 

 s3< .ibling in habit E. myosuroides: stem leaves very large, triangular- 

 lanceolate, obtuse; branch leaves rounded at apex: capsule like that of 

 typical form. Bot. Gaz. 14: 98. 1889. On logs: Lake Pend d'Oreille, 

 Idaho. 



498. Eurhynchium snb-strigosum Kindb. Diff ers from E. strigosum 

 in distant branches complanate: leaves long decurrent and twice greater, 

 patent, sub-distichous: capsule very constricted below orifice; cilia ap- 

 pendiculate: monoicous. Mac. Cat. 205. On rocks: British Columbia. 



499. Eurliynchinin crassinervium laxirete Kindb. Leaves nearly en- 

 tire or faintly denticulate above, shorter acuminate; cells larger: only 

 male flowers found. Mac. Cat. 207. On earth in woods: Queen's Co., 

 N. B. 



500. Eurhynchium colpophylluin flagelli forme Barnes. Leaves lance 

 ovate, small; branches long, almost flagelliform, attenuate. Bot. Gaz. 16: 

 207. 1891. California. 



501. Eurhynchium Dawsoni Kindb. Stems pinnate, not or rarely 

 radiculose; branchlets patent: leaves green or brownish, not glossy, not 



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