312 FRYE 
Upper leaves spreading, loosely incumbent when dry, similar to 
those of P. gracile but larger, 10-15 mm. long. Margin erect, 
sharply serrate, very narrow, of 2-3 rows of smaller cells (.o1o- 
.or2 mm.). Lamelle about 50-70, very low, 3-5 cells high; mar- 
ginal cells smooth, round, equal or slightly larger than the otners anu 
sometimes a little longer than broad. Vein excurrent; point red, 
short, dentate. Cells of leaf-base longer and narrower than in P. 
gracile, very narrow at margin, near middle toward vein width to 
length about as 1:6-10. Perichetial leaves with long sheaths, 
longly acuminate. 
Calyptra covering capsule. 
Capsule erect or inclined, cernuous when dry, oblong, with 5-6 
(rarely 4) acute angles, yellow-green, fawn-colored when ripe, wide- 
mouthed, cells of surface turgidly mamillose, smooth; hypophysis 
small, distinct, constricted above. Lid large, with rather long 
beak. Spores .oro—.o14 mm. Pedicel 5-6 cm. long, stout, rigid, 
orange below and paler above.—On soil and rocks.—From Alaska 
Peninsula southward along the coast, Ravelstoke and Selkirk 
Mountains in British Columbia; Oregon; Pelee Point on Lake Erie 
in eastern Canada; Miquelon Island; Europe; Japan. 
3. Polytrichum ohioense R. & C., in Rev. Bryol., 1885, 
[Dy hits 
Name derived from Ohio in which state it was first found. 
Plants erect, 3-6 cm. high. Stems simple or bipartite. 
Leaves spreading when moist, erect-flexuous when dry, cuspidate; 
linear-acuminate from a sheathing base. Margin plane or erect; 
serrate. Lamelle about 50, 5-7 cells high; marginat ceus mucn 
larger than the others, broader than long as 13-2 : 1, slightly con- 
vex or plane. Vein excurrent in a red dentate point. Perichetial 
leaves longer, with a longer hyaline base. 
Capsule erect, finally horizontal, acutely 4-5 angled, rarely 6 
angled, smooth, rather narrow towards the base, 2-25 mm. wide, 
5-7 mm. long; hypophysis very small or indistinct. Lid conic- 
acuminate, red at margin. Pedicel 4-6 cm. long, reddish below, 
pale above.2*—On_ soil.—Ravelstoke, British Columbia; eastern 
British Columbia; northeastern United States. 
24 Examination of material from Alaska, eastern United States and Europe shows 
that P. ohioense cannot be distinguished from P. attenuatum by the form of the capsule 
