276 FRYE 



4. Cells .010-. 020 mm. 



5. Lamina mostly with teeth at back j. C. undulata. 



3. Lamellae 9-13 cells high. 

 4. Cells .025-. 050 mm. 



5. Lamina mostly with teeth at back 4. C. selwyni. 



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, iji 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. Lamellae 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 i-jV the leaf -width. Cells .025- 

 .045 mm., quadrate-hexagonal or rounded, the lower elongate. 



Cal)^tra 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 fiexuose. — On clayey 

 soil.— Revelstoke, British Columbia; Atlantic Coast of United 

 States; England. 



2. Catharinea angustata Brid., in Mant. Muse. 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 i: 7-10, not papillose; lamina smooth at back. 

 Margin serrate only above middle, bordered. Damellae 4-7, 5-8 

 cells high. Vein toothed at back, \-\ the width of leaf. Cells 

 .010 — .014 mm. 



