262 BULLETIN OP THE UNIVERSITY OP WISCONSIN. 



hyaline near the base, chlorophyllose above: flowers monoicous: capsule 

 erect, oval or ovate; apiculate lid not deciduous; calyptra large, cucullate, 

 nearly covering the capsule. Muse. Gall. 69. 



43. Yoitia hyperborea Grev. & Arnott.— Smaller and more slender than 

 the European T^. nivalis: leaves densely imbricate, erect-appressed, broadly 

 oval or sub-rotund, short acuminate, strongly concave, margin entire; 

 costa vanishing in apex: perichjetial leaves long cuspidate, costa excur- 

 rent: vaginule long, membranaceous: pedicel short; capsule oval-globose, 

 base subangulate, apex slightly curved; spores minute, smooth. Muller 

 Syn. Muse. Frond. 1: 35.— Greenland. 



44. Oymnostomum platyyhyllum Kindb.— Dioicous: plants green, not 

 glossy: stem not papillose, sparingly radiculose: leaves decurrent, distinctly 

 papillose, short, obtuse, oblong, lanceolate, the comal greater, one border 

 often recurved all around; costa greenish yellow, very papillose. Bull. 

 Torr. Bot. Club 17: 84. 1890.— On the face of a small waterfall, near Kam- 

 loops, B. C. 



45. Anoectangiuni compactuiii Schw.— Dioicous: stem fragile, red to- 

 mentose: leaves erect spreading, when dry appressed, spirally arranged or 

 with the twisted points incurved, linear-lanceolate, margin plane, faintly 

 crenulate; costa strong, percurrent or vanishing below apex; basal cells 

 short rectangular, the remainder round-hexagonal, papillose on both sides: 

 perichgetial leaves sheathing, outer ones small, inner larger, smooth, costa 

 vanishing far below apex: seta straw-colored, twisted to the right; capsule 

 obovate, smooth, neck short, indistinct: two rows of quadrate annular 

 cells which sometimes remain with the capsule and sometimes with the 

 lid. Limpr. Laubm. 1: 214. fig. 95.— Greenland. 



46. Eucladium B. & S.— Genus closely related to Trichostomum and 

 Oymnostomum: plants cespitose, erect, dichotomously branched, base of 

 the old innovations radiculose: leaves erect-spreading, when dry straight 

 or slightly curved, lanceolate or linear-lanceolate, margin plane, toothed 

 near the middle; costa strong, round: dioicous: capsule generally erect, 

 oval or long oval, with a short indistinct neck; lid obliquely rostrate; an- 

 nulus simple; peristome of sixteen lanceolate or linear-lanceolate teeth, 

 entire, lacerate or perforated; spores small, smooth.— Bryol. Eur. 



47. Eucladium verticillatum B. & S.— Tufts thick, 1-4 cm. rarely 14 

 cm. long, bluish-green, below light or yellowish brown: leaves linear-lan- 

 ceolate; costa percurrent or rarely excurrent; cells of the lower part of leaf 

 thin-walled, hyaline, long rectangular, marginal cells smaller, the remain- 

 der richly chlorophyllose, round quadrate and also rectangular, papillose 

 on both sides: perichajtial leaves scarcely different: calyptra cucullate, 

 covering Yq the capsule. MoUia verticillata Lindb., Braith. Brit. Moss 

 Flora 1: 241. — Santa Ana Caiion, California. 



48. Weisia convoluta C. M. & Kindb.— Tufts dense, dark green: stem 



