Ace de 
REVUE BRYOLOGIQUE RSS, à 
about 4 cm. long, Leaves entire or slightly denticulate, obtusate , 
mostly obtuse ; areolation somewhat loose; costa percurrent; 
insertion red. Comal leaves subovate. Shoots green julaceous, 
scarcely 1 cm. long ; their leaves mostly oblong, the lower shor- 
+ ter. Tufts dense, to 9 em. high, radiculose to the comal leaves. 
_ Dioecious. : 
à Colorado, Cebolla, 7.600 f. a. s.: N. L. T. Nelson 1908. 
Very distinct in the hight stem, etc. 
DiGHELYMA BREVINERVE Kindb, n. sp. — Leaves channelled sub- 
conduplicate, straight and distant, narrowly ovate-lanceolate, 
long-acuminate, short-decurrent, entire or nearly so, green and 
not glossy ; acumen mostly obtuse ; uppermost cells oblong- 
lanceolate, the alar rectangular and not well-defined from the 
other basal ones ; other cells narrower, sablinear ; all cells chlo- 
rophyllose ; costa abbreviale, reaching to 3/4 or shorter, green, 
Stem irregularly divided, to 45 em. long. 
N. Am., Missouri, Allenton 1909 : N. L. T. Nelson. 
Differs from ôther species in the abbreviate costa of the leaves. 
C, conicus incurved capsule. 
BryumM (Zeucodontium) LEUcoBAsIs Kindb.,n. sp. — Leaves 
diversiform, long-distant and long-decurrent, not recurved, 
. brownish when dry; insertion pale; cells hyaline wide hexa- 
_gonal, the basal subrectangular, only the uppermost narrower ; 
bate, oval-oblong acuminate acute, often with subulate acumen, 
sometimes slightly denticulate above middle ; costa subpercurrent. 
- Lower leaves obtuse, arrounded at apex, broadly or roundish 
- 2 cm. high. Tufts dense. Sterile. 
= Colorado, Cebolla, 7600 f. a. s. : N. L. T. Nelson 1908. un 
Differs from 2. Duvalii. principally in diversiform leaves ; from 
B. Gaspeanum Kindb. (2. distantifolium Card. et Thér.) in the : 
PUR current leaves, the lower much broader. 
sr reg., fruiting, Dr Nelson. 
= Capsule oval, not striate ; lid red, high-conic ; pedicel straight, 
not exserted. Allied to G. attenuata. Also found in colorado, ste- 
rile, by Holzinger, com. by Thériot, and in Brit. Col., ster., by J. 
Macoun. 
: Weisia convoluta, mixed with Grimmia cognata Nelson. 
 Physcomitrium australe and Ph. Hookeri; Missouri : Nelson. 
_ cilia none; lid convex, large ; spores about 0,015 m. m. ; pedicel : 
Ceratodon minor Austin. — Colorado, Sheephorn, 10,000 f. a.s. a 
New to U.S. A.; hithertho found our in Canada Distinct from 
_costa green, not excurrent. Upper leaves not or indistinety lim- 
_ ovale, entire; costa more abbreviate. Stem radiculose, about 
GRIMMIA COGNATA Card. et Thér. — Colorado, R. M.;  Gunnison, 
