270 FRYE 
4. Cells poro—.620 mm: 
5. Lamina mostly with teeth at back........ 3. C. undulata. 
3. Lamellz 9-13 cells high. 
4. Cells .025—.050 mm. 
5. Lamina mostly with teeth at back........ 4. C. selwynt. 
1. Catharinea crispa James, in Proc. of Amer. Acad.,1855,p. 445. 
Atrichum crispum Sull., in Mos. of U.S., p. 41 (1856). 
Name probably derived from the crisping of the leaves in drying, 
a characteristic however, not restricted to this species, nor even this 
genus. 
Plants dioicous, 2.5-10 cm. high, in soft tufts. Stems erect, sim- 
ple. 
Leaves distant, oval-oblong to oblong-lanceolate, not papillose, 
patent, crisped when dry, obtusely acuminate, hardly at allundulate, 
width to length about as 1: 2-3, the lower shorter and broader; 
lamina smooth at back. Margin reddish, toothed from near the 
base, bordered. Lamelle 1-4, 1-3 cells high, vanishing in the lower 
half of the leaf. Vein strong, reddish/brown, vanishing in the apex, 
with few or no teeth at back, about $—} the leaf-width. Cells .o25- 
.045 mm., quadrate-hexagonal or rounded, the lower elongate. 
Calyptra smooth except at tip, which is roughened with very short 
hairs. 
Capsule erect or nearly so, slightly curved, width to length about 
as 1:4, narrowly obconic, wide-mouthed. ‘Teeth narrow, unequal; 
basal membrane very narrow. Lid conic, with subulate beak. 
Pedicels slender, 1-3 at a stem-tip, somewhat flexuose.—On clayey 
_ soil.—Revelstoke, British Columbia; Atlantic Coast of United 
States; England. 
2. Catharinea angustata Brid., in Mant. Musc. p. 204 (1819), 
Atrichum angustatum B. & S., in Bryol. Eur. t. 411, (1844.) 
Name derived from augustus = narrow; referring to the narrow 
leaves. 
Plants dioicous. Stems 2-5 cm. high. 
Leaves narrower than in C. undulata, undulate when moist, width 
to length about as 1: 7-10, not papillose; lamina smooth at back. 
Margin serrate only above middle, bordered. Damelle 4-7, 5-8 
cells high. Vein toothed at back, 3-% the width of leaf. Cells 
.OI0 —.O14 mm. 
