TABULAR ARRANGEMENT OF THE TRIBES 

 AND SUB-TRIBES. 



ACROCARPI. 



Capsule globular immersed, splitting irre- 

 gularly -. . . . . . Phascea. 



Peristome none or simple, tissue of leaves 



dense ...... Weissiece. 



Peristome none . ... . . Gymnostomum. 



Peristome simple, of 16 teeth . . Weissia. 



Teeth split to the middle ; leaf-cells at base 



square, enlarged at the angles . . Dicranea. 



Leaves distichous, conduplicate in the 



lower part ; teeth split . . . Fissidentece. 



Plants spongy, whitish yellow; leaves thick, 



composed of three layers . . . Leucobryecz. 



Leaves clasping at base ; teeth 16, divided 

 nearly to base into equal jointed seg- 

 ments . . . . . . Ceratodontea. 



Plants minute; capsule erect; teeth 16, 



single . Sdigeriea. 



Capsule ovate; teeth o or 16 ; ,leaf-cells 



large . . . . . . Pottiea. 



Teeth filiform, 32, distinct or in pairs . Trichostomiea. 



Capsule regular; fruit-stalk straight or 

 curved; leaves often hair-tipped; cells 

 dot-like Grimmiea. 



Calyptra conical-lobed, hairy or smooth ; 

 cells dot-like ; teeth 8 or 16 twin, 

 inner teeth 8 or 16 thread-like . . Orthotrichea. 



Calyptra furrowed ; teeth 1 6 ; leaf-cells dot- 

 like . . . . . . Ptychomitriect. 



Calyptra large, funnel-shaped, persistent . Encalyptiece. 



