— 133 — 



way, Germany, SwitzerL! Amer. Can.: Macoun; Waghorne. 

 Greenl.: Berggren. U. S.; Howell, com. Cardot. 



* H.Moseri Kindb. cat. Canad. m. 



Stem creeping. LeaveR pmall gen. not striate; costa thin 

 often obsolete. Capsule small; pedicel us. short. — Amer. Ca,n.: 

 (N. Brunsw., Labrador and N. Foundl., frequent): Moser; Wag- 

 horne. Eur. Sweden: E. Nyman. 

 23.H.orthothecioides Lindberg 



Difiers from H. uncinatum: Leaves not decurrent, gen. with 

 broader base, often straight; alar cells gen. small. Dioecious. 

 Tufts us. yellowish. Capsules and female flowers unknown. 

 — Earth and rocks in northern districts. Eur. not r. in arctic 

 districts. Spetsbergen: Berggren. Sweden: Arnell. Finland: 

 Brotherus. Amer. Alaska: J. M. Macoun. Can.; Waghorne. 



B. Leaves recurved, denticulate nearl}' all around (at least 

 those of branches). Dioecious. 



24.H.erythrorhizon Schimper. — Brachythecium Sch.; Hyp- 

 num Hartman. 



Leaves faintly striate crowded decurrent not large, often cor- 

 rugate when dry; alar cells hyaline somewhat large, the others 

 lanceolate oblong; costa reaching to acumen. Stem-leaves nearly 

 entire from ovate or ovate-oblong base abruptly long-acuminate, 

 faintly but broadly recurved nearly to acumen. Branch-leaves 

 broadly ovate-lanceolate faintly denticulate nearly all around. 

 Capsule not large suboblong or arcuate; lid acute; pedicel short 

 smooth. Stem subpinnate creeping. Tufts not glossy pale 

 green or green. — Granite rocks in woods in northern districts r. 

 Eur. Sweden: Aongstroem; Arnell; J. Persson. Amer. »U. S.» 

 Cardot 



* H.Tliedenii (Hartman as var.) Br. eur. — Brachythecium 

 Br. eur.; Hypnum (Hartman) Kindb. 



Leaves subplicate less crowded. Stem longer, more regularly 

 pinnate. Capsule oval. — Rocks r. Eur. Sweden: K. F. The- 

 denius, com. R. Hartman. Amer. »U. S.»: James. 

 25.H.harpidioitles C. M. et Kindb. — Brachythecium Cat. 

 Can. m. 



Differs from H. erythrorhizon: Leaves plicate distinctly den- 

 ticulate all around and more distinctly falcate, from ovate base 

 subulate-acuminate recurved to acumen; alar cells large green, 

 the others lanceolate. Capsule round-oval; pedicel slightly rough 

 above. Stem not creeping. — Logs in woods r. Amer. Can.: 

 Macoun; Moser. 



