— 209 — 



Ditches and roadsides r. Amer. U. S.: Sulliv. ct Lesq., com. 

 Renauld; Langlois, com. Cardot. 



b. Leaves serrulate above, not recurved; alar cells not de- 

 fined. 

 IS.D.riifescens Dickson. — Bryum Dicks.; Dicranella Sch. 



Leaves longer upwards, nearly straight or curved: the upper- 

 most narrowly ovate-lanceolate; cells less narrow than in D. 

 rubra. Capsule symmetric blood-red us. erect; teeth cleft nearly 

 to middle; lid rostellate us. half as long as capsule; annulus 

 none. Tufts often rufescent. Male plants resembling a Phascum. 

 — Wet clay and stony ground. Eur. not r. Sweden: R. Hart- 

 man; M. Huss. Amer. Can.: J. Macoun. Alaska: J. M. Ma- 

 coun. 

 *D.hnmilis Ruthe. 



Capsule incKned and curved when dry. Leaves pale green, 

 the upper more flexuous. — Sandy and clay soil r. Eur. Nor- 

 way: N. Bryhn. 



94. Dicranoweisia Lindberg. 



A. Leaves recurved gradually acuminate; costa not excur- 

 rent. Peristomial teeth not cleft; annulus revoluble. 

 l.D.cirrata L, — Mnium L.; Dicranoweisia Lindb. 



Leaves subulate-acuminate; alar cells not well-defined; costa 

 subpercurrent. Perichetial leaves abruptly narrowed to a shor- 

 ter acumen; costa vanishing below it. Capsule erect cylindric 

 pale or yellowish brown. Tufts pale green. — Logs and rocks 

 not r. Eur. Sweden, Switzerl.l Amer. Can.: Macoun. 



B. Leaves not recurved. Peristomial teeth us. cleft; annu- 

 lus indistinct. 



a. Leaves abruptly acuminate; costa not excurrent. Capsule 

 straight symmetric. Perichetial leaves very short. 

 '2.D crispula Hedwig. — Weisia H.; Dicranoweisia Lindb. 



Leaves with long subulate channelled acumen; alar cells 

 well-defined. Capsule pale brown us. oval-oblong, or cylindric 

 when young, r. cylindric when old; teeth sometimes entire. 

 Perichetial leaves short-apiculate. Tufts brown or blackish 

 when dry. — Rocks princ. in alps, common in alp. regions. 

 Eur. Norway, Switzerl.l Sweden: Miss 0. Cron. Spetsbergen: 

 Berggren. Amer. Greenl.: Berggren. Alaska: J. M. Macoun. 

 Can.: J. Macoun; Waghorne. U. S.: Henderson, com. Cardot. 

 S.D.Compacta Schleicher. — Grimmia Schl.; Dicranoweisia 

 Schimp. 



Differs from the last: Leaves with sublinear not long often 



