— 113 — 



Can. not r. and sometimes fruiting: Macoun; Moser; Drummond 

 n. 178. Alaska: J. M. Macoun. 



* B.flavescens Bridel. — Hypnum Brid.; Kindb. Laubra. 

 Sfihwed. u. Norw.; Brachythecium Kindb. 



Leaves very broad and abruptly acuminate; oosta often short 

 and forked. Pseudo-monoecious. — Eur. r, Sweden in a 

 grassy ditch near Linkoeping, fruiting!; near Norrkoeping: P. Olsson. 

 '''B.latifoliuni Lindberg. — Hypnum Ldb.; Brachythecium 

 Philibert. 



Leaves smaller less crowded, nearly entire and not striate, 

 more gradually acuminatf". Capsules not seen. — Wet places 

 in alp. regions r. Eur. Norway, Switzerl.i Finland: Brotherus. 

 Amer. N. Foundl.: Waghorne. 

 22.B.platycladuin C. M. et Kindb. cat. Can. m. 



Differs from B. rutabulum: Leaves distinctly auricled with 

 well-defined alar cells. Pedicel of capsule shorter. Branches 

 compressed. Stones in woods r. Amer, Can.: Macoun; Moser; 

 White. 



B. Leaves plicate and recurved. 

 23.B.cavernosum Kindb. revue bryol. 1895. 



Differs from B. rutabulum: Leaves more concave, recurved on 

 both sides to acumen; alar and lower basal cells small green 

 not well-defined. Lid of capsule longer pointed or rostellate. 

 — Amer. r. Can.: "White, com. Macoun. 

 24.B.spurio-rutabulum C. M. et Kindb. cat. Can. m. 



Differs from B. rutabulum: Leaves longer acuminate recur- 

 ved to middle, loosely disposed and long-decurrent, very much 

 patent when dry; alar cells gen. less defined. Pedicel of cap- 

 sule short. Stem pinnate creeping. — Logs r. Amer. Can.: 

 Macoun; Waghorne. 



* B.columbico-rutabulum Kindb. cat. Canad. m. 



Stem-leaves nearly entire; alar cells well-defined. Pedicel of 

 capsule longer. — Logs by water r. Amer. Can. Brit. Col.: 

 Macoun. 



IV. Plumosaria Kindb. 



A. Pedicel of the capsule smooth below, faintly rough or 

 sometimes nearly smooth above. Stems us. densely tufted and 

 creeping. 



a. Stem-leaves short broad subovate short-acuminate. 

 25.B.plu]iiO$uni Swartz. — Hypnum Sw.; Brachythecium Br. 

 eur.; Hypnum pseudo-plumosum Bridel; C. M. 



Leaves gen. crowded, sometimes short-decurrent, nearly entire 



