THE POLYTRICHACE.E OF WESTERN NORTH AMERICA 



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Calyptra cucullate, about half covering the capsule, rough at tip. 



Capsule purple, narrower and more erect than in C. undulata, 

 width to length about as i: 7-8. Teeth shorter than in C. undu- 

 lata. Lid dark purple, about half as long as the capsule. On 

 clayey soil. McLeod's Lake, British Columbia; Santa Cruz 

 Mountains, California; Atlantic states; Eastern Canada; Europe. 



Fig. 1. Catharinea crispa. 



1 = Plant moist, with capsule, X i. 2 = Plant dry, showing crisping of leaves 

 X i. 3 = Capsule with lid, X 5. 4 = Peristome X 150. 5 = Leaf showing lamel- 

 lae on upper side, X 15. 6 = Leaf- tip, X 65. 7 = Cross section of leaf, showing 

 lamellae, X 65. 8 = Cross section of leaf margin showing thickened border cells, 

 X 250. 9 = Cross section of a few lamellae, X 250. 



3. Catharinea undulata Web. & Mohr, in Ind. pi. crypt. (1803). 

 Atrichum undulatum Beauv. Prodr. p. 42 (1805). 



So named on account of its wavy or undulate leaves. 



Plants in loose patches, dull green. Stems erect, 2.5-5 cm - 

 high, simple or much branched, from a subterranean shoot. Inflor- 

 escence autoicous. 



