— 288 — 
VI. Hymenostylium Bridel. A 
20.W.eurvirostris Ehrhart. — Pottia Ehrh.; Weisia C. M. 
Gymnostomum Hedwig. 
Leaves long narrowly. ovate-lanceolate or sublinear acuminate f 
acute carinate, more or less papillose: the. upper sometimes | 
faleate; cells often faintly yellowish or less pellucid, rectangular | 
or subquadrate; the lower basal cells hyaline sometimes 
rhomboidal. Perichetial leaves costate nearly similar. Capsule. 
red-brown subglobose or obovate; beak longer and oblique. 
Tufts radiculose often high, sometimes loosely cohering. m 
Caleareous and schistose rocks princ. in alps. "Eur. not un- 
common. Sweden, Norway, Switzerl! Amer. Can.: Macoun; 
Waghorne. U. S.: Demetrio, com. Cardot. Ate 
21.W.platyphylla Kindb. — Gymnostomum  Kiridb. bull. Torr. 
club 1889. e 
Leaves oblong-lanceolate obtusate obtuse nearly smooth con- 
cave or channelled, shorter and broader than in the last; cells - 
pellucid somewhat large: the upper subquadrate, the inner 
basal rectangular hyaline. Perichetial leaves ovate, the inner 
not or indistinctly costate. Capsules unknown. Tufts not 
high nearly eradiculose, — Rocks r. Amer. Can. Brit. Col | 
near a waterfall Macoun. un boe 
VII. Gymnostomum Hedwig. e 
A» Tufts compact. Stem somewhat elongate. Capsule with 
be or narrow persistent annulus; peristome none; pedicel 
yellow. 
euer pest rie Schleicher. — Gymnostomum  Schl.; Weisia 
Leaves carinate often acuminate, acute or obtuse, not or - 
faintly curved when moist, somewhat long; costa not percurrent. 
Perichetial leaves nearly similar not sheathing. Capsule oblong 
finally pale yellow, at least twice longer than the conic beak; 
annulus none.. Tufts often high us. brown-green. — Rocks 
princ. siliceous. Eur. not uncommon. Sweden, Norway, Switzerl.! 
Engl: Holt. Amer. Can.: Macoun; Waghorne; Drummond 24. 
23.W.ealearea Esenbeck et Hornschuch. — Gymnostomum 
Es. et Hornsch.; Weisia C. M. fi 
Leaves channelled or indistinctly earinate above, obtusate or 
short-acuminate, acute or obtuse, not or faintly curved when 
moist, not long; costa not percurrent. Perichetial leaves larger 
and longer with long sheathing base and shorter, attenuate 
acumen; the inner shorter, Capsule oyal-oblong yellowish; lic : 
