BARNES — NORTH AMERICAN MOSSES. 307 



median and comal leaves longer attenuate, denticulate sometimes below 

 middle, narrowly areolate, costa thick, canaliculate and excurrent, comal 

 revolute at borders, only lowest shorter and short-decurrent: peristome 

 pale; lid low and flat. Mac. Cat. 113. — On rocks: Vesuvius Bay, Salt 

 Spring Island, Gulf of Georgia, B. C. 



272. Webera microcaulon C. M. &Kindb. — Resembling a small form of 

 W. polymorpha in the very short stem and acute leaves agglomerate in 

 small buds: differs principally in dioicous inflorescence and very large 

 spores, when unripe about 0.03 mm. Capsules (not ripe) short obovate, an- 

 nulate; neck short; lid low mamillate; pedicel straight, arcuate at apex : 

 comal leaves scarcely revolute at borders, inner perichsetial much shorter: 

 tufts very compact; leaves green or finally blackish. Mac. Oat. 114.— 

 Digges Island, Hudson Strait. 



273. Webera subcncuUata 0. M. & Kindb.— Habit of Mielichhoferia 

 niiida/ intermediate between W. cucullata and W. pyonodecurrens: 

 resembles the last in small compact tufts, small (unripe) short-necked cap- 

 sule, and mamillate lid; but stems subjulacous, leaves dull green, densely 

 crowded, not decurrent; lower leaves short, sub-obtuse, nearly as in W. 

 cucullata but leaf cells narrower. Mac. Oat. 113. — Orevices of rocks: 

 Mount Queest, Gold Range, B. 0. 



274. Webera Ludwigii Sch. — Dioicous: soft, laxly cespitose, red or 

 blackish at the base, dark green above, scarcely glossy when dry: stem and 

 branches purple, erect, slender, sparingly radiculose: lower leaves remote, 

 broadly ovate, obtuse, entire, more crowded upward, erect spreading, long 

 decurrent, not carinate; comal leaves densely crowded, oblong-lanceolate, 

 serrulate at apex; margin narrowly recurved, nerve purple, vanishing be- 

 low apex, thick at base; cells rather lax, thin, rhombo-hexagonal above, 

 more rectangular at base: capsule on a flexuose reddish seta suddenly bent 

 below capsule, sub-pendulous, oval-pyriform, brownish, annulate, slightly 

 constricted below mouth; lid conical, obtuse, apiculate; peristome pale 

 yellow, teeth linear-lanceolate, basal membrane of endostome reaching 

 middle of teeth, processes gaping at keel, cilia 2-3. Brit. Moss Flora 2: 

 154 asPohlia. — Oregon; Cascade Mts. and Gold Range, B. C; Greenland. 



275. Webera gracilis De Not. — Dioicous: much more slender than TF. 

 commutata, in loose, yellow green, glossy tufts, blackish at base, with 

 many rigid filiform shoots, short in fertile plants, elongated and often 

 with red [axillary gemmae in sterile: leaves erect, appressed when dry, 

 rigid, ovate and ovate-lanceolate, short-pointed, without chlorophyll; 

 margin plane, faintly serrate at apex; nerve thinner, lost at or below point: 

 capsule tiu-gidly ovate, cernuous, small, reddish brown; lid orange, hem- 

 ispherical, apiculate. Braithw. Brit. Moss Flora 2: 154. — Oregon. 



276. Webera micro-denticnlata C. M. & Kindb, — Tufts dense, glossy 



