— 401 — 



sometimes falcate when raoii?t; ' cells subvectan^wlar or the opper 

 shorter.' Spores about 0,04 m. m. — Eur. r. France; BrebisBon'. 



b. Calyptra campanulate. Costa of leaves faint gen. not 

 excurrent. 

 S.E.COhaerens Hedwig. — Phascnm Hedw.; Ephemerum Harape. 



Leiaves suboblong short-acuminate; cells irregular: upper rhom- 

 bic. Spores 0,05 — 0,07 m. m. — Etir. r. Austria: Breidler. 

 Amer. »U. S: common*: Lesq. et Jam. 

 '*'E.FIotOTrii Funck, — Phascum Funck; Ephetnei-um Limpr, 



» Leaves sublauceolate somewhat long-acuminate, pft^ nearly 

 entire. — Eur. r. Germany»: Schimper. 

 SE.Ruthei Schimper; Husnot m. Gall. 



Leaves sublinear-lanceolate long-acuminate; cells nearly uniform. 

 Spores about 0,05 m. m. — Eur. r. » Germany »: Schimper. 



164. Nanomitrium Lindberg. 

 l.N.tenerum Bruch. — Phascum Bruch; Nanomitrium Lindb.; 

 Micromitriurh megalosporura Austin; SuUiv. icon, m.; Epheme- 

 rum Ipngifolium Philibert. 

 , Leaves, narrowly ovate-lanceolate faintly serrulate nearly all 

 around, Suberect when moist. Capsule with hyaline walls arid 

 very short subacute point, sometimes transversely splitting when 

 pressed. Spores faintly papillose about 0,03 m. m. — ; Eur. r. 

 France: Theriot; Philibert. Amer. »U. S.»: SuUivant. 

 2.N.Austmi Sullivant. — - Ephemerum Sulliv.; Nanomitrium 

 Ren. et Card.; Kindb. revue bryol. 1895; Micromitrium Austin; 

 Sull. icon. muse. 



DifEei's from the last: Leaves longer-acuminate, more subulate, 

 entire below middle, spreading or deflexed when moist; cells of 

 "capsule larg(3r, not hyaline; spores smaller scarcely 0,03 m. m- 

 nearly smooth. — Amer. r. »U. S.»: Sulliv. 

 S.N.synoicum James. — Ephemerum Jam.; Nanomitrium Ren. 

 et Card.; Kindb. 1. c; Micromitrium Austin; Sull. icon. muse. 



Leaves narrowly ovate lanceolate long-acuminate subulate en- 

 tire, suberect when moist. Capsule neither apieulate nor regu- 

 larly splitting; cells as in the last Spores about 0,02 m. m., 

 distinctly papillose. — Amer. r. »U. S.»: Sulliv. 



165. Ephemeridium Kindb. revue bryol. 1895. 

 l.E.papillosum Austin. — Ephemerum Aust.; Sullivant jcon. 

 muse; Ephemeridium Kindb. 1. c. 



Leaves long narrowly ovate-lanceolate, tapering above middle 

 to the subulate acumen, sharply serrate nearly all around, subr 

 erect when moist; cells rectangular nearly uniform; costa per- 



