— 224 — 
.&. Capsule nearly immersed, scarcely emergent: above peti- 
chetial leaves; calyptra cucullate. Dioecious. E 
26.G.ortholoma Kindb. revue bryol. 1896. à. il 
"Leaves long, nearly appressed when dry; nearly all cells 
sinuous, middle rectangular; hairpoint long nearly smooth. 
Capsule very small; lid with short conic or oblique beak. — 
Tufts 1—2 c. m. high. Leaves often with brown branched . 
brood-filaments. — Amer. r. Can. Brit. Col: Macoun. | ^ 
b. Capsule distinctly emergent, yellowish; calyptra mitriform. 
Monoecious. p) ns 
27.G.apiculata Hornschuch. "^ AME 
Leaves subobtuse; cells yellow in younger state: middle an 
upper short sinuous, alar rectangular; hairpoint short smooth.’ 
Capsule oval; lid apiculate or mamillate. Tufts about 1 c. m. 
high. Habit of G. ovata. — Alp. region r. - Eur. Norway! 
Austria: Breidler. ; 
28.G.Holleri Molendo. ers 
Differs from the last: Leaves with longer hairpoint; nearly — 
all cells narrow. Capsule oblong with wider mouth; lid with 
longer beak. Tufts about 2 c. m. high. — Higher alp. region - 
r. Eur. Austria: Breidler. a 
29.G.arenaria Hampe. — G. curvula Br. et Schimp. 
Leaves subacute very narrow sublinear; cells faintly sinuous —— 
nearly all short, the lowest rectangular; hairpoint long smooth. 
Capsule suboval; lid obtuse muticous. Tufts less than 1 centim. — 
high. — Rocks and stone-walls also in alp.“ region r. Eur. 
Switzerl.! Belgium: Schimper. a ie 
B. Leaves more or less recurved. Stem often longs. 
a. Angular (alar) leaf-cells indistinct or uniseriate. Dioecious. - 
Leaves with obsolete or wanting hairpoint. wa 
30.G.patens Dickson. — Bryum Dicks; Grimmia Br. eur 
Differs from other species in the at back bilamellate costa 
of leaves. Ear 
Leaves long, recurved below middle at both sides, nearly 
appressed when dry; nearly all cells us. sinuous, the middle 
and alar subquadrate or short-rectangular, the inner basal Jong. 
Capsule subovate pale brown not striate; lid rostrate, Tufts 
us. loose and green; stem 5—10 c. m. long, r. shorter. Re- 
sembles some species of Racomitrium. Not r. fruiting. — Moist 
quartzose rocks also below alps. Eur. not r. Sweden common, 
Norway, Switzerl, Spain! Amer. Can.: Drummond; Macoun. 
