—— e 
stem-leaves suboblong. subobtuse short-acuminate, dentate above 
middle; lower leaves oval obtuse entire; shoot-leaves also entire. 
Capsule oval-oblong not strangulate, with not or slightly dilated — 
mouth; lid rostellate or apiculate; teeth brownish. Tufts green — 
or finally brownish green us. dense, often high. — On earth. | 
Eur. common. Sweden, Switzerl.! Amer; Can.: Macoun. 
22.M.Niagare Kindb. cat. Canad. m. 
Leaves gen. indistinctly decurrent. Upper stem-leaves lános 
late acuminate dentate to below middle, crowded and not de- 
current; costa excurrent. Lower leaves oblong acute more or 
less dentate. Upper shoot-leaves also dentate. Capsule cylin- 
dric-fusiform strangulate wide-mouthed; lid obliquely rostrate; 
teeth yellow. Tufts loose dark green. — On earth under trees 
near water r. Amer. Can. Niagara: Macoun. 
B. Dioecious (with separate male plants) Stem gen. not 
radiculose between leaves. Upper leaves us. dentate all around. 
a. Leaves crisped (princ. on long us. decumbent stolons), 
gradually: larger upwards on fertile stem; costa: not excurrent. 
23.M.riparium Mitten. — M. ambiguum H. Mueller. 
Leaves oval-oblong subobtuse, dentate all around, often crow- 
ded and not decurrent on fertile stem; shoot-leaves small distant 
us. long-decurrent; cells larger than in M. orthorhynchum. -.. Cap: 
sule straight oblong-oval; teeth pale; lid rostellate. Stem not 
high. — Wet rocks r. Eur. Norway, Switzerl.! Sweden: E. ipe 
man. Amer. Can.: Macoun. 
24.M.umbratile Mitten; Sullivant icon. m. 
Leaves narrowly lanceolate acuminate very ‘distant and long- 
decurrent. Capsule curved suboblong large often «with. long 
neck; teeth yellow; lid apiculate; pedicel often very meine 
Wet rocks r. Amer. Can. Brit. Col: Macoun. || 
b. Leaves faintly curled. Stem without decumbent uia 
aa. Leaves distant long-decurrent.. Tufts. loose us. high. 
25.M.lycopedioides Hooker. — Bryum Hook.; Mnium Sehwegr. — 
Leaves lanceolate-acuminate gradually latger- upwards; costa — 
gen. excurrent. Capsule curved suboblong, larger than in + 
orthorhynchum; teeth dark yellow or pale brown; lid: rostellate. 
— Wet alp. rocks r. Eur. Switzerl. near iis M yes nerd 
Wichura, com. Mus. Berolin.). 
26.M.decurrens C. M. et Kindb. l. c. E 
Lower leaves small oval-oblong; upper suddenly larger lan- 
ceolate acute less distant; costa not excurrent:: Capsule strai t 
suboval; teeth dark yellow; lid apiculate: Stem often. cies 
