157 
cells oblong-linear, 6-8: 1; basal cells shorter, brownish yellow ; 
alar cells not conspicuously quadrate ; stem leaves larger, 1-1.4 
mm. long: dioicous ; perichaetial leaves ovate-lanceolate. Sporo- 
phyte lacking. 
Type locality European. 
Davis Strait (Taylor). 
In several sets of Drummond's mosses no. 73, from the Rocky 
Mountains (distributed as Catoscopium nigritum), there is no trace 
of this species. Dr. Mitten kindly sent a portion of the Davis 
Strait plant and says that the Taylor who collected these specimens 
was a ship's surgeon and not the Dr. T. Taylor whose herbarium 
is at Harvard. 
"A small moss with all the habit, appearance and color of 
Orthothecium intricatum Br. & Sch., but differi ng in its almost ex- 
actly. ovate leaves, with a short sometimes discolored apiculus, the 
margins revolute, and the areolation composed of cells which are 
twice as wide." (Mitten.) 
HOLMGRENIA INTRICATA (Hartm.) Lindb. Ofv. Vet. Ak. 
orh. 19: 605. 1863. 
Leskea intricata Hartm. Skand. Fl. Ed. 5: 336. 1849. 
Orthothecium intricatum Br. & Sch. Bryol. Eur. pl. 462. 1851. 
 Les£ea polyantha 8 sericeola Brid. Bryol. Univ. 2: 313. 1827. 
Gametophyte in wide densely intricate mats, dark green to brown- 
ish green; stems filiform, 2-4 cm. long, creeping, somewhat 
stoloniferous, irregularly divided; branches short and erect or 
elongated and prostrate; leaves equally spreading or slightly 
secund, appressed-imbricate when dry, narrowly lanceolate, 0.8-1.5 
X 0.2—0.4 mm. long, subulate to filiform acuminate, entire, some- 
what concave, ecostate, median cells linear, 8—10:1; basal cells 
shorter and broader, often colored red-brown, alar cells not dif- 
ferentiated : dioicous ; inner perichaetial leaves lanceolate, long- 
filiform, acuminate. Sporophyte 15-20 mm. high; seta twisted to 
the right below, to the left above ; capsule erect and symmetric, red- 
brown, 2-2.5:1; operculum conic ; annulus of two rows of cells ; 
peristomal teeth closely and regularly articulate ; segments linear, 
perforate along the keel, longer than the teeth, arising from a nar- 
row basal membrane ; spores 8-10; seldom fruiting. 
Type locality European. 
w 
