— 338 — 



Bubrectangular. Capsules unknown. — Amer. U. S. Colorado: 

 com. C. Mueller. 



* A.fascicnlare Bridel. — Mnium Brid.; Aulacomnium Kindb. 



Leaves smaller and shorter, entire obtuse somewhat distant. 

 — In alps r. 'Eur. »Austria»; Limpricbt. Amer. Greenl.: Van- 

 hoeffen. 



* A.imbricatnin 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.polycephalnm 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.tiirgidiiiii Wahlenberg. — Mnium Wng; Aulacomnium 

 Schwaegr. 



Leaves cucullate above, suboblong entire obtuse imbricate 

 nearly smooth: costa somewhat short. Inner periehetial leaves 

 subacute; costa not percurrent. Capsule nearly straight; lid 

 not rostellate. Tufts nearly eradiculose without pseudopodia. 

 R. fruiting. — Humid places princ. in northern alps. Eur. 

 Norway not uncommon 1 Sweden: E. Nyman. Spetsbergen 

 common: R. Gyllencreutz. Amer. Greenl.: Vanhoeffen. Alaska: 

 J. M. Macoun. Can.: Macoun; Waghorne. 



152. Mnium Linne, in part. 

 L Pseudo-Brynm. Leaf-cells elongate suboblong. Leaves 

 large nearly entire not distinctly Hmbate. Dioecious. 

 II. En-Mnium. Leaf-cells ger. round-hexagonal except the 

 marginal and sometimes the inner near costa. 



A. Leaves entire limbate; outer periehetial broad not long. 

 L Hymenophylloidea. Leaves small, those of decumbent 



shoots distichous. Capsules unknown. 



2. Vnnctatiformia. Leaves large not distichous; uppermost 

 roBulate. Lid Of capsule rostrate or rostellate. 



B. Leaves entire or dentate us. not limbate: outer periehe- 

 tial long narrow subliuear. Lid of capside convex mamillate. 

 Dioecious. 



3. Stellariformia. Leaves bluish when moist; cells not 

 large. 



C. Leaves simply dentate, limbate by pale cells; costa ex- 

 current. Outer periehetial leaves us. broad and not long. Stem 

 often with decumbent stolons at base. 



