— 299 ~ 



V. Pseud-Ulota. Capsule exserted; cilia narrow. Leaves 

 strongly crisped; hyaline alar cells uniseriate or indistinct. 

 Tufts pulvinate. Dioecious very r. fruiting, often with propa- 

 gula when sterile. 



Bt Stomata of capsule immersed. 



VI. Calyptoporus. Capsule often strangulate; cilia us. sub- 

 filiform. Leaves more or less recurved, gen. not crisped. Mon- 

 oecious. 



a. Leaves partly flat at borders. Plants gen. small. 



1. Psilocarpa. Capsule immersed thick neither sulcate nor 

 strangulate. Leaves not crisped. 



2. Microcarpa. Capsule immersed thick sulcate us. stran- 

 gulate. Leaves not crisped. 



3. Palchella. Capsule narrow subcylindric sulcate not di- 

 stinctly strangulate, us. exserted. Leaves more or less crisped. 



b. Leaves recurved nearly all around, not crisped. Capsule 

 sulcata. 



aa. Leaves with hyaline hairpoint. 



4. Diaphana. Capsule immersed not strangulate. Plants small. 

 bb. Leaves without hairpoint. 



5. Rirularia. Capsule immersed. Leaves channelled short 

 broadly obtuse; cells large thin-walled, the upper polygonal; 

 costa abbreviate. Plants gen. large, growing in or near water, 

 r. fruiting. 



6. Cnpulata. Leaves carinate long gen. acuminate acute; ' 

 upper cells small rotundate thick-walled; costa gen. percurrent. 

 Capsule sometimes not strangulate; teeth not appressed to it. 

 Plants often large, growing on rocks or less often on trees. 



7. Piimila. Leaves more or less distinctly carinate often 

 obtuse; upper cells small rotundate thick-walled; costa gen. 

 percurrent. Capsule us. strangulate; teeth appressed to it when 

 dry. Plants small us. pulvinate, growing on trees or less often 

 on rocks. 



I. Coelophyllum Kindb. 



A. Capsule with nearly as long neck; teeth orange. 

 1 . 0. obtusifolium Schrader. 



Leaves ovate-oblong obtusate not involute at apex, also the 

 perichetial; costa pellucid not percurrent. — Trees and roofs. 

 Eur. common. Sweden, Norway, Switzerl.l Amer. not common. 

 Can.: Macoun. 



2.0.inflexiiin C. Mueller syn. ■ — »0. brachytrichum Schim- 

 per»: Lesq. et Jam. ? 



