BARNES— NORTH AMERICAN MOSSES. 301 



of lower half of leaf reflexed and entire, above plane and toothed, apex not 

 concave; costa longer and vanishing in point; cells somewhat smaller: 

 seta 1-1.5 cm. high, capsule erect, smaller, oval or elliptic, when dry almost 

 globose, suddenly contracted into the long thin neck; columella generally 

 only slightly excurrent; lid suddenly obliquely beaked; peristome inserted 

 deeply, separated by a layer of epidermis, teeth 16, hygroscopic, when moist 

 involute, when dry appressed against the capsule wall, or somewhat irregu- 

 lar, warty-papillose on the outside, cross walls quite prominent. Limpr. 

 Laubm. 2: 151.— On damp rocks: Dry Canon, near Devils Lake, Rocky 

 Mountains. 



244. (Edipodium Schw. — Plants small: leaves succulent, upper cells 

 rounded quadrate, chlorophyllose: some flowers bisexual, others male: 

 seta thick; capsule sub-spherical with a long collum; columella included; 

 peristome absent; hood conic, cucullate; spores large. 



244:a. (Edipodiuiu Griffithianum Schw. — Stems 5-15 mm. high, erect, 

 in soft, dark green tufts: leaves succulent, forming a rosette at summit of 

 stem, obovate-spatulate, large and rounded at summit, entire, ciliate at 

 base; costate to below apex; lower cells rectangular, hyaline; upper round- 

 ed-quadrate, chlorophyllose: seta pale green, thick, passing gradually into 

 the very long collum; capsule sub-spherical, orange; lid convex-conic or 

 shortly apiculate; peristome absent, hood fugacious, conic-cucullate; 

 spores large, papillose. Husnot, Muse. Gall. 201. — Greenland. 



245. Physcomitrinm turbiiiatuin (Michx.) Brid.— Plants light green, 

 gregarious, 8-20 mm. high; autoicous: stems short and simple, or taller and 

 branching: leaves oblanceolate or obovate from an oblong base, serrate above 

 middle ; costa vanishing below apex or occasionally excurrent into an acu- 

 minate apex; lower cells oblong, upper rhomboidal or hexagonal, marginal 

 longer and narrower, often yellow and inflated at their upper ends : seta 

 erect or twisted and occasionally arcuate: capsule erect, globose pyriform 

 when fresh, becoming tvirbinate and contracted bslow mouth and spore 

 sac when dry, dark brown and often urceolate when empty ; lid convex or 

 mamillate, occasionally apiculate when dry, blunt ; mouth bordered by 

 8-12 rows of cells and a narrow row of oiange colored cells, with a hyaline 

 vesicular persistent annulus incurved after falling of lid; calyptra cucul- 

 late, oblique and split unequally, 5-8 lobed and beaked ; spores rough. — 

 Bull. Torr. Bot. Club 21:199. 1894. A common but variable species 

 in old fields, grassy open places in gardens, etc., from Florida to Ontario, 

 west to the Rocky Mountains and California (?). 



246. Physcoiuitrium tiirbinatuin Lan^loisii (R. & C.) Britt. — Plants 

 pale yellow ; stems usually short and simple, slender, occasionally tall and 

 branching to 2 cm.: leaves narrow, acuminate : seta filiform; capsule small, 

 almost campanulate, not contracted below mouth when dry : neck tapering, 



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