156 
Gametophyte in thick glossy golden tufts ; stems 5—10 cm. long, 
erect, simple or 2—3 parted, radiculose at base ; leaves pluriseriate, 
imbricate, ovate-lanceolate to triangular ovate, 1.3-2 x 0.4-0.8 
mm., apiculate to short acuminate, curved, strongly plicate, nearly 
ecostate ; margins entire, recurved; median cells linear, 12-14: 
I; basal cells somewhat shorter and broader, thick-walled 
and golden brown: dioicous ; male branches gemmiform ; antheridia 
short stipulate ; paraphyses few, filiform ; perigonial leaves ovate, 
concave, acute to acuminate, serrate at apex : perichaetium 1.5—2 
mm. long ; leaves few, triangular-ovate, golden brown with several 
layers at base; the inner long-acuminate, sharply toothed, not pli- 
cate. Sporophyte 2—3 cm. high; seta golden brown, smooth; 
capsule ovoid-cylindric, slightly unsymmetric, contracted under the 
mouth when dry; operculum conic ; annulus of two rows of cells, 
easily deciduous; peristome double; the teeth linear-lanceolate, 
closely articulate, hyaline and granulose-roughened above; seg- 
ments from a very wide basal membrane as long as teeth, some- 
what perforate along the keel; cilia two, shorter; spores 12—16p, 
roughened. 
Type locality European. 
On moist rocks and stony slopes, in alpine or boreal regions. 
Rare and rarely fruiting. Rocky Mountains (Drummond, 
Macoun); Saskatchewan (E. Bourgeau); Columbia Falls, Mon- 
tana (R. S. Williams); Colorado (Brandegee). 
ILLusTRATIONS.—Br. & Sch. L c. : Husnot, Musc. Gall. 316. 
pl. go. | 
2. HOLMGRENIA sTRICTA Lorentz, Moos Stud. 122. M. 5. 1864. 
Stereodon rubellus Mitt. Journ. Linn. Soc. 8: 40. 1865. 
Orthothectum rubellum Kindb. Laubm. Schwed. u. Norw. 46: 
1883. 
Orthothecium intricatum var. rubellum Husnot, Musc. Gall. 173. 
1893. : 
Gametophyte caespitose, orange colored, glossy ; stems erect, 
1.5-2 cm. long; branches few; lower branch leaves elongated 
ovate ; upper ovate-lanceolate, I X 0.3-0.4 mm., not plicate or 
sulcate, ending in a flexuous subhyaline acumination; margins 
revolute, serrulate above; costa short and double; median leaf- 
