— 129 — 
Capsule large arcuate; annulus ‘broad; lid subobtuse; pedicel 
long. Tufts us. green. — Gen. common, r. in alp. regions. 
Eur. Sweden, Switzerl.! Amer. Can.: Macoun. U. 8. Roell. 
*H.longinerve Kindb. cat. Can. m. : 
Leaves mostly curved; costa gen, long-excurrent. Tufts some- 
times brown. — Rare: Amer. Can.: Macoun. 
= *HKochii Br. eur. — H. curvipes Guembel; Amblystegium 
. Sehimp. syn. 
Leaves oval-oblong gen. straight; middle cells lanceolate. — 
Rare. Eur, France: Berthoumieu, Amer, Can.: Macoun. 
TH:vacillans Sullivant. — Amblystegium Bull. icon. m.; Hyp: 
num Lesq. et Jam. 
Differs from H.: riparium: Leaves not large, those of branches 
often obtusate with oblong apical cells, the perichetial with 
excurrent costa. Capsule small more strangulate; lid obtuse; 
pedicel thin and short. — R. Eur. France, Calvados: Brébisson 
(Husnot M. Gall. n. 393). Amer. Can. Owen Sound: Macoun. 
U. 8: Roell; N. Jersey: com. Macoun. 
2. Revolventia. 
8.H.revolvens Swartz. 
Leaves -circinnate, from short subovate base narrowed to the 
longer acumen, not striate, entire and not decurrent, us. reddish; 
cells linear exc. the wider (lower) basal; costa gen. vanishing 
below acumen. Capsule large arcuate; annulus broad; lid api- 
culate; pedicel gen. long. Stem irregularly pinnate. Monoecious 
not r. fruiting. — Alpine princ. northern districts. Hur. Nor- 
way (common)! Sweden: Lindberg; M. Huss. England: Holt. 
France: Husnot. Amer. r. Alaska: J. M. Macoun. Greenl.: 
. Berggren; Vanhoeffen. Can.:; Macoun; Waghorne. 
 9.H.Cossoni Schimper. — H» intermedium Lindb. 
Differs from the last Leaves not cireinnate, their acumen 
hof longer than the us. subovate base. Tuits green or brown- 
yellow. Dioecious r. fruiting. — Eur. princ. in northern districts. 
; Sweden, Norway, Switzerl.! Amer. r. Can.: Macoun: 
H.vernicosum Lindberg. } 
Leaves shorter and broader, short acuminate, striate when 
.. Qry; costa often short. Stem us. pinnate. Tufts us. yellowish. 
Sine Eur. Sweden!; Lindberg. Norway! Amer. r. Can.: Macoun. 
S H.rigidum Kindb. enum. bryin. dovr. (as var.) 
"Leaves larger with narrowly. ovate-oblong base, brown-green. 
Stem somewhat rigid when dry. Capsules not found. -~ Alp. 
. fegion r. Eur. Norway! B gobi boy 
