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ANALYSIS OF GENERA. 9 



117. Clasmatcdon. Teeth irregular, twice or thrice divided to the 



base. Capsule constricted under the orifice. Plants very small. 



•»- I- Peristome double, the outer of 16 teeth, the inner of 16 segments, 



with or without cilia. 



++ Leaves papillose. 



118. Thelia. Teeth linear-lanceolate, subulate; segments shorter than 



tlie teeth; cilia rudimentary. 



119. Myurella. Peristome perfect; cilia 1 or 2, thick, shorter than the 



segments. 



120. Leskea. Teeth narrowly lanceolate; segments narrow, linear; 



cilia none. Capsule oblong, erect or somewhat arcuate. 



121. Anomodon. Teeth pale, linear-lanceolate; segments very short; 



cilia none. Capsule oblong or cylindrical. Plants large. 



++ ++ Leaves not papillose, complanate. 



105. Neckera. Teeth long, linear-lanceolate; segments short, fili- 



form. Leaves more or less undulate. 



106. Homalia. Segments longer than the teeth; cilia single, short. 



Leaves distichous. 



125. Cylindrothecium. Teeth attached far below the orifice of the 



capsule; segments narrow, carinate (abortive in one species). 

 Leaves smooth. 



++++++ Leaves not papillose nor complanate. 



= Inner peristome a membrane adhering to the teeth. 



108. Leucodon. Teeth large, thin, granidose, distantly articulate. 



Perichcetium very long. Calyptra smooth. 



103. Leptodon. Teeth distantly articulate, hyaline-bordered. Peri- 



chaetium very long. Calyptra hairy. 



123. Pylaisia. Teeth densely articulate; segments long, partly adhering 

 to the teeth. Calyptra smooth. 



= = Inner peristome free, divided to near the base into 10 segments. 



104. Alsia. Teeth and carinate segments long, linear-lanceolate, with 



or without cilia. Calyptra smooth. Secondary stems dendroid. 



107. Meteorium. Teeth and carinate segments short. Capsule small, 



oval. Plants long, slender, pendulous. 



109. Pterigynandrum. Teeth short, distantly articulate; segments 



very short; cilia none. Calyptra smooth. Leaves sliglitly papil- 

 lose on tlie back. 



110. Pterogonium. Teeth long and closely articulate ; segments very 



short. Calyptra sparingly hairy. 



111. Antitrichia. Teeth narrowly lanceolate, subulate; segments 



linear, a little shorter than the teeth. Perichastium long. 



126. Climacium. Teeth confluent above the orifice of the capsule; 



segments as long as the teeth, cleft along the keel. Calyptra 

 long, slender, embracing the base of the capsiile. Ramification 

 dendroid. 

 115. Anacdmptodon. Teeth lanceolate, reflexed when dry; seg- 

 ments filiform, like the cilia in Orthotrichurn. 



122. Platygyrium. Teeth free to below the orifice of the capsule, 



broadly margined; segments narrow, linrar, as long as the teeth. 

 Calyptra long, dimidiate, twisted around the capsule. 



