206 
PHYSCOMITRIUM COLORADENSE N. sp. — 
(Plate 202.) 
Autoicous, the antheridia in basal buds, few, large, without 
paraphyses. Plants small, 3-4 mm. high, scattered or gregarious, 
stems short, simple or with basal buds; leaves few, radical, erect, 
concave, I.5—-2 mm. long, base short, auriculate, cells lax, upper 
cells shorter, marginal serrate or inflated above the middle, with 
large irregular teeth, occasionally entire or serrulate only at apex; — 
vein narrow, percurrent into a cuspidate apex, or ending below it _ 
in the lower leaves. Seta short, immersed, or partly exserted, 
1-2.5 mm. long; capsule exserted, large for the size of the plants,” 
nearly 2 mm. long, pyriform when fresh, becoming turbinate and 
contracted below the mouth and spore-sac when dry, bright orange 
or brown when mature; mouth bordered by 4—5 rows of narrow 
elongated cells, and a double annulus, the outer orange-colored, 
the inner vesicular, hyaline; lid large conic, rostrate when dry, 
also bordered with orange cells; spores warty, not spinose, .027- 
.037 mm., maturing in April and May. ; 
Type locality, Colorado, T. S. Brandegee, April 13, 1877; Eu. 
herb, E. A. Rau; also collected at Great Falls, Montana, 0? 
muddy banks of the Missouri River, by R. S. Williams, May 
11, 1887, ex. herb. D. C. Eaton. : 
Resembling Pyramidula tetragona in the large size of a 
capsule as compared with the small size of the plants, but distin- 
guished by the lobate calyptra and double annulus. 
PHYSCOMITRIUM CALIFORNICUM Nn. sp 
(Plate 203.) 
Autoicous, the antheridial terminal, becoming lateral by inno- 
vations. Plants gregarious, 10-15 mm. high; stems simple, er 
short, 3 mm. high; leaves few, basal, oblong-lancealate, 3 sahil 
long, bordered by a double row of elongated cells, entire of or 
sionally serrulate above the middle; vein thick, ending below BY 
acute apex; cells lax, oblong, marginal obliquely septate. ; 
1-2 cm. long, slender, twisted, often brown; capsules small, er 
long, beaked; spores brown, .027—.035 mm. warty, not spinose, al 
turing in Spring. | es 
