— 2'i8 -^ 



44.Cr.microtricha C. M. et Kindb. 1. c. 



Differs from the last: Leaves with short hairpoint and shorter, 

 less distinctly sinuous cells. Capsule oblong brown; lid short- 

 conic; pedicel distinctly exserted. Dioecious or (on distinct 

 branches) monoecious. Tufts blackish below. — Subalp. region 

 r. Amer. Can. Brit. Col.: Macoun. 



B. Tufts not or loosely cohering, 3 — 8 c. m. high. Geri. 

 dioecious r. fruiting. 



a. Leaves sublinear subobtuse, appressed when dry; lower 

 cells not sinuou.s; hairpoint us. indistinct. 

 45.(x.eIongata Kaulfuss. 



Leaves somewhat short and short-acuminate, faintly recurved 

 below at one side; cells yellow in j'ounger state: upper round- 

 quadrate sinuous, middle and alar short-rectangular; hairpoint 

 short often wanting. Capsule oval pale brown; lid short-conic 

 obtuse. Tufts blackieh when dry, brown-green when moist, 

 somewhat low and more cohering in fruiting state. — Alp. 

 region r. Eur, Norway! Austria: Venturi. Amer. Can.: 

 Macoun. 



b. Leaves ovate-lanceolate acute, nearly appressed when dry; 

 nearly all cells (exc. at base near costa) sinuous. Upper leaves 

 with short hairpoint. 



46.G.inicrocarpa Gmelin. — Bryum Gm.; Grimmia Lindb,; 

 Racomitrium sudeticum Br. eur. 



Leaves more or lees recurved below; upper and middle cells 

 short, the alar uniseriate quadrate more dilated. Capsule sub- 

 oval small; lid rostrate. Perichetial leaves with sublinear acu- 

 men. Tufts blackish or dark brown when dry. — Moist alp. 

 rocks gen. r. Eur. Norway, Spain! Amer. Can. Brit. Col.: 

 Macoun. 



47.G.attenuata C. M. et Kindb. — Racomitrium C. M. et 

 Kindb. L c. 



Leaves recurved nearly all around, suberect and nearlj' 

 straight when moist; upper cells short, the middle rectangular, 

 the alar long narrow often pluriseriate. Capsule suboval; lid 

 subobtuse or apiculate. Tufts fuscous green above, blackish 

 below. Habit of G. elatior. — Alp. region r. Amer. Can. Brit 

 Col.: Macoun. 



C. Leaves sublinear acute appressed when dry; lower basal 

 cells not sinuous; hairpoint of upper leaves long. Dioecious. 

 Capsules unknown. 



