— 198 — 



than in the last; cells as in the last; costa not distinctly ex- 

 current and nearly smooth. Capsule sulcate solitary. Inner 

 perichetial entire, attenuate to awn. Tufts us. golden glossy. 

 — Damp rocks. Amer. Pacif. dist. not r. Alaska: J. M. Ma- 

 coun. Can.: J. Maeoun; Dawson. U. S. Oregon: Hertzman; 

 Roell; Howell, com. Cardot. 



* D.angastifolium Kindb. 1. c. in part. 



Capsule not sulcate. Leaves nearly entire. — Damp rocks 

 r. Amer. Can. Vane, isl.: Maeoun. 



b. Leaves less long and not brittle, us. flexuous or crisped 

 when dry; costa sometimes somewhat broad. Capsule solitary 

 gen. less large; pedicel not much long. Tufts us. low and not 

 shining. 



47.D.fnscescens Turner. 



Leaves with subulate in upper part more or less serrulate 

 acumen, flexuous or crisped; cells us. not porose; angular cells 

 diversiform, the inner hyaline; other cells of base long, the 

 upper gen. short; costa faintly rough at back, us. excurrent 

 and somewhat broad. Capsule us. oblique striate or sulcate. 

 Tufts us. grayish green when dry. ■ — • Decayed trunks or damp 

 rocks in woods not r. Eur. Sweden, Norway! Amer. Can.: Ma- 

 eoun. U. S.: Roell. 



* B.congestum Bridel. 



Leaves less serrulate with sublinear acumen; cells us. porose; 

 costa us. subpercurrent narrower. Capsule less striate. Tufts 

 us. green. — Not r. Eur. Sweden, Norway, Switzerl.l Fiul.: 

 Brotherus. Amer. Can.; Maeoun; Waghorne. U. S.: Roell. 



* D.Sendtneri Limpricht. 



Leaves nearly entire less flexuous, sometimes subconvolute; 

 cells porose, upper gen. narrow. Capsule nearly straight. — 

 Rocks r. Eur. Norway! Russia: Zickendrath. 



* D.subbreTifolmm Kindb. n. subsp. 



Leaves larger, subconvolute nearly entire; costa not excurrent. 

 Capsule sulcate. Stem somewhat high. Habit of D. hrevifolium. 

 Amer. r. Can. Rocky mts: Maeoun. 

 48.D.congestiforme C. M. et Kindb. 1. c. 



Leaves with somewhat broad short-subulate neai-ly wholly 

 serrulate acumen, faintly flexuous, larger than in D. fuscescens; 

 upper and middle cells porose gen. narrow, the others as in 

 the mentionned species; costa distinctly rough at back, not 

 excurrent, narrow. Capsule oblique somewhat large and finally 



