176 
Sporophyte strongly resembling B. collinum but the gametophyte 
is entirely different in its microscopic characters. 
9. BRACHYTHECIUM  TURGIDUM (Hartm.) C. Hartm. Kindb. 
Enum. 294. 1888. : 
Hypnum turgidum Hartm. Skand. Fl. Ed. 5: 328. 1849. 
Hypnum plumosum turgidum Lindb. Musc. Scand. 36. 1879. 
Gametophyte in glossy, whitish-green to-golden-green tufts ; 
stems creeping, irregularly branching; branches very stout and 
turgid, julaceous, pointed, sometimes ending in flagellae, 1-3 cm. 
long; leaves loosely appressed imbricate, somewhat decurrent, 
lanceolate to broadly ovate-lanceolate, 2.5—3.5 X 0.9-1.2 mm., 
entire, gradually narrowed to a long filiform acumination, stongly 
plicate, costate to middle; margins reflexed below; median leaf- 
cells 12—15:1 ; basal broader and shorter ; alar rhomboid-quadrate ; 
stem and branch leaves little different: monoicous ; perigonial 
leaves entire, sharply acuminate, ecostate; antheridia short-stipi- 
tate: perichaetial leaves sheathing, long-acuminate, entire, ecos- 
tate. Sporophyte 1-2 cm. high; seta red-brown, smooth, 
twisted to the right below to the left above; capsule 3-3.5 mm. 
long, 3:1, sub-horizontal, curved, somewhat contracted under the 
mouth when dry ; operculum conic; annulus of one row of cells ; 
cilia one or two, nodose ; spores 18-24, nearly smooth, matur- 
ing in autumn. 
Type locality European. 
In alpine or boreal regions in grassy or stony places. Battle 
Harbor, Labrador (Waghorne) ; Stephen, Rocky Mts. (Macoun) ; 
. Greenland (Fl. Gr.). This species has much the appearance of 
B. glareosum but differs in its more turgid branches, entire leaves 
and in being monoicous. Not yet found fruiting in America. 
The description of the sporophyte is adapted from Limpricht. 
10. BRACHYTHECIUM RUTABULUM (L.) Br. & Sch. Bryol. Eur. fasc. 
52—54, pl. 543 and 544. 1853. 
Hypnum rutabulum L. Sp. Pl. 1124. 1753. 
Hypnum dentatum var. vul. latissimum operculis obtusis, Dill. 
Hist. Musc. 295. pi 36. f. 29. 1741. : 
