— 401 — 
sometimes faleate when ‘moist; cells subrectangular ‘or the upper 
shorter.’ Sporessabout 0,04 m. m. — Eur, r. France; Brébisson. 
bi Calyptra campainiilate. Costa ‘of leaves faint “gen. mot 
excurrent, 3 
pé E.coherens Hedwig. — Phascum Hedw;; Diisiibentint Harüpé. 
Leaves: suboblong short-acuminate; cells irregular: upper rhom- 
bid: Spores 0,05—0,07 m. m= Eur. r. Austria: : Breidler. 
Ameri» U. S. common»: Lesq. et Jam. [7 
* E.Flotowii Funck. — Phascum Funck; iiem dmn. 
~o» Leaves- sublanceolate somewhat lóhg-acttn inte; onan nearly 
entire. -—: Eur: r. Germany»: Schimper. 
9 E.Ruthei Schimper; -Husnot m: Gal. 9jaiuo 
Leaves sublinear-lanceolate long- acuminate; cells pei uniform. 
Spores about 0,05 m. m. — Eur. r. »Germany»: Schimper. 
164. Nanomitrium Lindberg. 
1.N.tenerum Bruch. — Phascum Bruch; Nanomitrium Lindb; 
Micromitrium megalosporum Austin; Sulliv. icon. m.; Epheme- 
rum longifolium. Philibert. À 
Leaves. narrowly . ovate-lanceolate faintly . gerrulate nearly all 
around, suberect when moist. Capsule with hyaline walls and 
very short sübacute point, sometimes transversely splitting when 
pressed. Spores faintly papillose about 0,03 m, m. — Eur. r. 
France: Thériot; Philibert. Amer, »U. S.»: Sullivant. 
,2.N,Austini Sullivant. — Ephemerum Sulliv.; Nanomitrium 
Ren. et Card.; Kindb. revue bryol. 1895; Micromitrium Austin; 
Sull. icon. muse. ur 
Differs from the last: Leaves longer-acuminate, more subulate, 
entire below middle, spreading or deflexed when moist; cells of 
capsule larger, not hyaline; sporés smaller scarcely 0,03 m. m. 
nearly smooth. — Amer.. r. »U. S.»: Sulliv. 
3.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 apiculate nor regu- 
larly splitting; cells: as in the last Spores about 0,02 m. m à 
distinctly papillose. -— Amer. r- »U. 8.»: Sulliv. 
«1.165. Ephemeridium Kindb. revue bryol. 1895. 
1.E.papillosum Austin. — Ephemerum Aust.; Sullivant icon. 
muse.; Ephemeridium: Kindb. 1l. c. 
^ Leaves long narrowly’ ovate- lanceolate, saperiagt above middle 
to the subulate acumen, sharply serrate nearly all around, sub- 
erect .when) moist; cells rectangular nearly uniform; costa per- 
