w MS us 
rostellate. — Trees in swamps r. Amer. Can.: Macoun. U. 
Roell; Kelsey, com. Cardot. 
B. Leaves long-decurrent very distant. Tufts sparingly 
diculose. Capsules unknown. 
3.A.dissitifolium Kindb. cat. Canad. m. 
Leaves from subcordate or ovate base tapering to a sometime 
long acumen, denticulate all around; alar cells somewhat large 
the others oval-oblong very chlorophyllose. Tufts low green. 
Dioecious. — Wet limestone rocks r. Amer. Can. near Niagara 
and Owen Sound: Macoun. ; 
2. Serpentia. 
4.A.varium Hedwig. — Leskea H.; Amblystegium | Lindb. in 
part. 4B 
Leaves broadly ovate-lanceolate or ovate-oblong, often entire; 
middle cells gen. oval-oblong; costa gen. long, also in periche- 
tial leaves not excurrent. Capsule curved; annulus compound. 
Stem decumbent. Monoecious. — Logs, trees and stones, not 
uncommon. Hur. Sweden, Norway, Switzerl., Italy! Amer. 
Can.: Macoun; Waghorne. Da 
* A.radieale Beauvois. — Hypnum Beauv.; Amblystegium 
Br. eur. i 
Leaves smaller and more distant, denticulate; cells g 
oblong; costa less long. — Eur, Switzerl.! Finl.: Lindberg. 
* A.porphyrhizon Lindb. in Schimp. syn. ü 
Leaves small and less broad, denticulate and crowded; ce 
suboblong; costa faint often vanishing near middle. Confounc 
with A. serpens. — Eur. not r. Sweden common, Germai 
Switzerl.! Engl.: Rogers. Amer. Can. common: Macoun; Waghorne. 
* A.Juratzkæ Schimper. E- 
Leaves somewhat small denticulate more distant; cells ge 
oblong-lanceolate; costa subpercurrent. Eur. Sweden, Switzei 
Germany! Amer. Can.: Macoun. U. S.: Roell. 
* A.leptophyllum Schimper. 
Leaves somewhat small denticulate crowded; cells oblor 
lanceolate; costa subpercurrent. — Eur. France: Philibert. 
5.A.orthocladon Beauvois. — Hypnum Beauy.; Sulliv. ic. n 
in A. varium, in perichetial leayes still broader and ex 
