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2. Arcticiformia. Capsule gen. not longer than neck, often 

 oblique; teeth short; endostome more or less adhering. Us. syn- 

 oecious. Leaves gen. entire. 



3. Cernuiformia. Capsule not longer than neck, us. oblique; 

 teeth long; endostome gen. not adhering. Us. monoecious. 

 Leaves us. denticulate above. 



4. Purpurascentiformia. Capsule gen. longer than neck, 

 not oblique. Often monoecious. 



B. Leaves dark red at insertion (at least in elder leaves). 

 Peristomial teeth brownish or yellowish. 



a. Capsule red. Tufts loose. 



5. Calophylloidea. Capsule very short-necked. Monoecious. 



b. Capsule brownish or yellowish. Tufts gen. dense. 



6. Fenduliformia. Capsule gen. longer than neck, not 

 oblique. Us. S5'noecious, r. dioecious or monoecious. Leaves 

 gen. not decurrent. 



7. Biitilantiformia. Capsule gen. not longer than neck, 

 oblique. Us. dioecious, r. monoecious. Leaves decurrent distant. 



Webera. 



A. Perichetial leaves sublinear-lanceolate narrowly acuminate 

 acute, longish. Other leaves r. decurrent. 



1 . Crudiformla. Capsule indistinctly necked before sporosis, 

 finally not much longer than neck, often yellowish brown, gen. 

 not pendent; pedicel long. Leaves often somewhat large; upper 

 cells very narrow. 



2. Nutantiforinia. Capsule distinctly necked also before 

 sporosis, not much longer than neck, brownish (or partly red- 

 dish) and somewhat narrow, pendent; cilia sometimes appendi- 

 culate. Leaves often distant; upper cells sometimes dilated. 



3. Pulchelliformia. Capsule more or less distinctly necked 

 before sporosis, gen. much longer than neck, often pendent and 

 appressed to pedicel, sometimes reddish. Leaves small us. distant. 

 Stem short. Dioecious. 



B. Perichetial leaves shortish, oblong-lanceolate acute broadly 

 acuminate or obtuse. Other leaves gen. decurrent; cells not r. 

 dilated. 



4. Cucullatiformia. Male flowers gemmiform. Capsule 

 brownish annulate. Leaves green us. short. 



5. Albicantiformia. Male flowers discoid. Capsule red- 

 dish not annulate. Leaves us. long, often glaucous green. 



