96 NORTH AMERICAN FLORA [VorumE 15 
elongate, about 6» by 5-8 uw; outer perichaetial leaves with a broadish base rather abruptly 
narrowed to the flexuous point, the inner convolute to a truncate or rounded apex: seta erect, 
8-15 mm. long: capsule erect, symmetric, oval-cylindric, mostly pale-brown, somewhat rugose 
when dry, up to 2.5 mm. long; annulus wanting; lid with a slender beak one half as long as 
the capsule or longer; peristome-teeth when dry often incurved and scarcely visible above the 
mouth, rather coarsely papillose, at the apex entire or somewhat divided, without a distinct 
median line and with 8-12 articulations: spores smooth or nearly so, about 13 » in diameter. 
TYPE LocaLity: Austria. 
Distripution: Alaska to California and eastward to Wyoming and Montana; Greenland; 
Labrador; Mt. Marcy, New York; also in Europe, Asia, and Africa. 
ILLUSTRATION: Hedw. Sp. Muse. #1. 12, f. 1-6. 
Exsicec.: Drummond, Musci Am. 69; Macoun, Can. Musci 24, 477. 
3. Dicranoweisia contermina Ren. & Card.; Holz. Contr. U. S. Nat. 
Herb. 3: 269. 1895. 
Autoicous: male flower usually close to the base of the perichaetium, of numerous antheridia 
and paraphyses within very broad, short-pointed, brownish perigonial leaves: plants in mostly 
extensive, rather compact, yellowish-green cushions, with stems up to 3.5 cm. high: leaves 
spreading on all sides when moist, crispate when dry, up to 4 mm. long, with flat, entire margins, 
gradually narrowed upward to a slender, grooved point often quite rough toward the apex with 
marillose cells; costa percurrent or slightly excurrent, 40-65 » wide at the base and one sixth 
to one eighth the width of the leaf-hase; cells at the basal angles rather narrowly rectangular, 
mostly not forming distinct alar groups, in the lower part of the leaf rectangular, longer toward 
the costa, shorter toward the margin, in the upper part roundish, often transversely elongate, 
the median 6-7 » wide; outer perichaetial leaves from an ovate base rather abruptly nar- 
rowed to a flexuous point, the inner ones with a high, convolute base abruptly narrowed to a 
straight point, mostly filled by the excurrent costa and usually less than one half as long as the 
convolute part: seta brownish, up to 16 mm. long: capsule erect, symmetric, oval-cylindric, 
scarcely 2 mm. long, brown, more or less rugose when dry; annulus wanting; lid with a slender, 
erect beak more than one half as long as the capsule; peristome-teeth brownish, more or less 
papillose toward the apex, the outer plates variously striate a little above the base, the basal 
plates smooth, the median line mostly indistinct: spores nearly smooth, about 12 » in diameter. 
TYPE LOCALITY: Idaho. 
DistRipution: Alaska to California and eastward to Montana. 
It is possible the differences between this and the preceding species are not sufficiently constant 
to justify considering D. contermina as more than a western variety of D. crispula. 
Veo 
4, Dicranoweisia Roellii Kindb.; R6ll, Hedwigia 35: 59. 1896. 
Autoicous: male flower near the base of the perichaetium, the inner perigonial leaves broad, 
pale, narrowly costate, rather abruptly and acutely pointed, less than twice as long as the 
10-12 antheridia, the latter about 0.3 mm. long with paraphyses a little longer: plants in 
rather compact, brownish-green tufts, with often branching stems scarcely 1 cm. high: stem- 
leaves crispate when dry, up to about 2.5 mm. long, from a somewhat narrowly ovate base, 
rather gradually narrowed to a subulate, entire point, more or less rough with mamillose cells, 
the leaf-margins somewhat incurved; costa near the base about 50.4 wide, often excurrent 
one fifth its length; alar cells scarcely or not differentiated; lower leaf-cells rectangular, with 
slightly or not thickened walls, becoming gradually shorter upward, in the narrow blade above 
about 6 » by 4-8 u; perichaetial leaves similar to the upper stem-leaves but with a little broader 
base more abruptly narrowed to the subula: seta erect, pale-reddish, 5-7 mm. long; capsule 
erect, symmetric, oval, about 1 mm. long, pale-brown, with thin walls, rugose and irregularly 
furrowed, especially at base, when dry; peristome-teeth projecting only 60-70 4 above the 
mouth, undivided, reddish-brown, papillose throughout, with 6-8 rather distinct articulations; 
annulus wanting; lid low, with oblique subula, about one half as long as the capsule: spores 
slightly rough, up to 14 w in diameter. 
Type LocALIty: Mount Hood, Oregon, at 2400 meters elevation. 
DIstRIBUTION: Known only from the type locality. 
