— 24g — 



Btone in alps, Eur. not r. Norway, Switzeil., Spairil Sweden: 

 Lindberg. Amer. r. Can.: JVIacoun. 

 lO.B.pseud-aciphylla Kindb. in Hedwigia 1896 p. 63. 



Leaves long sublinear-lingulate obtuse; coBta very rough above; 

 hairpoint red only at base or in upper half. Capsule narrower 

 than in the last; peristome not seen. — Rocks in alp. region 

 r. Amer. Brit. Col. and Rocky mts: Macoun. U. S.: Roell. 



C. Leaves distinctly carinate; basal cells diversiform. Dioe- 

 cious. 



aa. Leaves large long narrow, reflexed nearly all around, 

 us. curved when moistened. 

 ll.B.ruralis L. — Bryum L.; Barbula Hedvsrig. 



Leaves broadly limbate below, very papillose, us. obtuse and 

 sublinear-lingulate; outer basal cells (princ. -in elder leaves) 

 narrower and porose; costa red very rough above; hairpoint 

 hyaline or only at base red. Peristome red twice contorted, 

 gen. not shorter than tube. Tufts rusty red below. — Stones, 

 sand, trees and roofs. Eur. common but in alp. regions r. 

 Sweden, Switzcrl.I Amer. Can. eastern districts: Macoun. 



* B.ruraliformis Bescherelle. 



Leaves gen. ovate-lanceolate acuminate- or acute with defluent 

 hairpoint. Tufts brown. — Sandy places r. Eur. Sweden! 

 Prance: Le Jolis. Amer. »U. S.»: Cardot. 



* B.alaskana Kindb. n. subsp. 



Leaves long-attenuate subacute. Peristome faintly twisted 

 shorter than tube. Tufts brown, green above. — Amer. r. Can.-. 

 J. Macoun. Alaska: J. M. Macoun. 



* B.rubicundula Kindb. n. subsp. 



Leaves shorter, all red; the lower with very short red point; 

 costa less rough. Habit of B. alpina. — Calcareous rocks r. 

 Eur. Sweden in island Oeland! 

 12.B.megalocarpa Kindb. bull. Torr. club. 



Differs from B. ruralis: Leaves us. larger, often short-acumi- 

 nate acute, less reflexed above; outer basal cells golden yellow 

 and narrower than the inner; hairpoint often red in lower half. 

 Capsule larger; peristome faintly contorted, shorter than tube. 

 — Rocks r. Amer. Can. Brit. Col. and Cypress hills: Macoun. 

 U. S.: Roell. 

 IS.B.submegalocarpa Kindb. in Hedwigia 1896 p. 64. 



Differs from B. rurulis: Leaves longer harrow and less reflexed 

 above, from broader base attenuate or sublinear; outer basal 

 cells golden yellow not porose; hairpoint often red in 



17 



