— 402 — 



current serrate at back. Capsule subapiculate; cells small; ca- 

 lyptra covering half capsule, laciniate. Spores about 0,02 m. m. 

 nearlj' smooth. Confounded with Ephemerum crassinerve. — 

 On thin soil and rocks r. Amer. »U. S.»: SulUv. 

 2.E.Lystrix Lindberg. — Ephemerum Lindb. manip. muscor. 2 

 (Societ. pro flora et fauna fenn. 1874); Lesq. et Jam.j Ephe- 

 meridium Kindb. (Ephemerum spinulosum Bruch et Sch. ?). 



» Leaves narrowly lanceolate-subulate, long-spinulose at mar- 

 gins, open-erect or subseciind, not much passing capsule; costa 

 percurrqnt nearly filling the subulate point, spinulose at back. 

 Capsule large very shortly conic-rostellate. Spores minutely 

 tuberculate very large. — Amer. r. U. S.: Louisiana»: Lindb. 1. c. 



Fam. 36. VoitiaceaB. 



166. Voitia Ho^nschuch. 

 l.T.niralis Hornschuch. 



Leaves distant long-acuminate not recurved; cells oblong- 

 hexagonal or subrectangular; costa gen. long-excurrent, in up- 

 permost leaves sometimes not exourrent. Capsule subovate- 

 oblong; pedicel thick 2 — 3 c. ra. long. Perichetial leaves ob- 

 tusate; costa long excurrent. Spores small. Tufts tomentose 

 3 — 8 c. m. high. — On animal dung in alp. region r. Eur. 

 Austria: Breidler. 

 2.Y.hyperborea Greville et Arnott. 



Differs from the last: Leaves broad-ovate obtusate gen. api- 

 culate; costa percurrent or short-excurrent. Shoot-leaves small 

 obovate; costa vanishing far below the short point. Capsule 

 subglobose smaller, sometimes shorter rostrate; pedicel thin less 

 long. Stems us. not tufted. Perichetial leaves not seen. — 

 Arctic distr. r. Eur. Spetsbergen: R. Gyllencreutz. 



Fam. 37. PhyscoiTiitrellacese. 



167. Physcomitrella Bruch et Schimper. 

 l.Ph.patens Hedwig. — Phascum H.; Physcomitrella B. S. 



Leaves sublingulate or sublinear acute or short- acuminate; 

 costa eubpercurrent. Capsule apiculate; pedicel more or less 

 distinct. Stem us. simple. — Wet clayey soil. Eur. not r. 

 Sweden! Finl.: Bomansson. France: Brebisson. Amer. »U. S.»: 

 Lesq. et Jam. 



168. Aphanorhegma SulUvant. 

 l.A.serratum Hooker et Wilson. — Schistidium H. W.; Apha- 

 norhegma Sull. icon. m. 



Leaves linear-lanceolate gen. with long subulate acumen; costa 



