— ae 
subrectangular. Capsules unknown. — Amer. U. S. Colorado: 
-com. C. Mueller. 
* A.fasciculare Bridel. — Mnium Brid.; Aulacomnium Kindb. 
Leaves smaller and shorter, entire obtuse somewhat distant. 
— In alps r. Eur. »Austria»: Limpricht. | Amer. Greenl.: Van- 
hoeffen. 
* A.imbricatum Br. eur. 
Leaves shorter, entire obtuse imbricate. "Tufts nearly eradi- 
culose. Habit of A, turgidum. — Princ. in alps, r. Eur. France: 
Payot, com. Husnot. Amer. Can.: Macoun. 
* A.polycephalum Bridel. — Mnium Brid.; Aulacomnium Br. 
eur. 
Leaves more acute and nearly subulate gen. small, Capsu- 
les; unknown. — Eur. r. Belgium: Verheggen, com. Husnot. 
4.A.turgidum Wahlenberg. — Mnium Wng; Aulacomnium 
Schweegr. 
Leaves cucullate above, suboblong entire obtuse imbricate 
nearly smooth; costa somewhat short. Inner perichetial leaves 
subacute; costa not percurrent. Capsule nearly straight; lid 
not rostellate. Tufts nearly eradiculose without pseudopodia. 
R. fruiting. — Humid places prine. in northern alps. Eur. 
Norway not uncommon! Sweden: E. Nyman. Spetsbergen  — 
common: R. Gyllencreutz. Amer. Greenl: Vanhoeffen. Alaska: 
J. M. Macoun. Can.: Macoun; Waghorne. poil 
152. Mnium Linné, in part. i 
I. Pseudo-Bryum.  Leaf-cells elongate suboblong. » Leaves . 
large nearly entire not distinctly limbate. Dioecious. 3 
ll. Eu-Mnium.  Leaf-cells gen. round-hexagonal except the — 
marginal and sometimes the inner near costa. E 
A. Leaves entire limbate; outer perichetial broad not long. - 
1. Hymenophylloidea. Leaves small, those of decumbent 
shoots distichous.' Capsules unknown. 
2. Punctatiformia. Leaves large not distichous; uppermost 
rosulate. Lid of capsule rostrate or rostellate. 
B. Leaves entire or dentate us. not limbate: outer periche- 
tial long narrow sublinear. Lid of capsule convex poate, 
Dioecious. 
x 3. ftellariformia. Leaves bluish when moist; celle aot 
rge. 
€. Leaves simply dentate, limbate by pale cells; costa ex- 
current. Outer perichetial leaves us. broad and not long. Stem. 
often with decumbent stolons at base. B 
