— 359 — 



Heldreich. France: Corbiere. Amer. Pacif. distr. Can.: Macoun. 

 U. S.: Marshall A. Howe;. Roell. 



* B.obconicnin Hornechuch. 



Leaves nearly entire not rosulate. Capsule less large. — 

 Walls and sandstone rocks r. Eur. Switzerl.! Engl.: Curnow, 

 com. Holt. Amer. Can. Pacif. distr.: Macoun. 



* B.floridanum Renauld et Cardot. 



sLeaves shorter, narrower limbate not recurved. — Amer^ 

 r. U. S.»: Cardot. 

 44.B.squarrosuin Kindb. in Hedwigia 1896 p. 66. 



Fruiting stem very short; leaves crowded denticulate, less 

 distinctly limbate. Leaves of sterile stems (shoots) broadly 

 limbate gen. denticulate, distant decurrent spreading also when 

 dry. Capsule not large. Tufts reddish brown. — Amer. r. 

 U. S. Oregon near Astoria: Roell. 



C. Leaves short narrowly limbate. Tufts low and dense. 

 Dioecious. 



. aa. Leaves imbricate somewhat large, very concave. 

 45.B.elegaiis Esenbeck. 



Leaves subobovate not or indistinctly recurved, only the 

 upper limbate denticulate; cells subrhombic. Capsule large. 

 Tufts green or finally reddish. — Calcareous rocks princ. in 

 alps r. Eur. Switzerl. in alp. regioni 



b. Leaves small us. not imbricate; cells gen. oblong-rhombic. 

 46.B.oregailum Sullivant; Lesq. et Jam. 



Leaves twisted: lower few very small; upper glomerate sub- 

 ovate abruptly acuminate, sometimes recurved. Tufts brown 

 or finally reddish, very low. — Amer. r. Can. Brit. Col.: Macoun.; 

 47.B.streptopliyllum Kindb. n. sp. 



• DiSers from the last: All leaves crowded nearly uniform: 

 upper not larger and not recurved, very concave. Tufts green- 

 finally brown, less low. Capsules unknown. — Amer. r. Can. 

 Brit. Col.: Macoun. 

 48.B.trichophoi'am Kindb. n. sp. 



Leaves obtusate appressed neither recurved nor twisted: lower 

 distant linear-oblong acute, upper crowded suboval. Tufts green. 

 Capsules unknown. — Amer. r. Can. Vane. isl. near sea: Ma- 

 coun 1893. 



B. Leaves not distinctly limbate. 



a. Leaves, princ. the lower of stem, gen. sublingulate with 

 long narrow base, as in B. capillare, us. twisted and crowded. 

 Dioecious. 



