70 HANDBOOK OF MOSSES. 



Peristome composed of the cellular part 



of the lid ; teeth 4 .... Tetraphidiea. 

 Stems bud-like, annual ; teeth 16, cloven at 



the base Disceliea. 



Peristome none ; leaves vertical, pinnate . Schistostegiece. 

 Capsule apophysate ; leaf-cells large . . Splachnece. 

 Capsule irregular ; calyptra inflated . . . Physcomitriea. 

 Capsule spherical, ribbed when dry ; leaves 



rigid, papillose ; upper cells square . Bartramiece. 

 Capsule long stalked ; neck distinct ; outer 



teeth short . . . . . Meesiece. 

 Perigtome double ; leaf-cells large, equal, 



smooth BryecK. 



Leaves thick, rigid ; top of columella en- 

 larged ; teeth 32 or 64 . . . Polytrichecz. 

 Stemless ; capsule large, swollen ; outer 



teeth rudimentary . . . Buxbaumiea. 



CLADOCARPI. 



Aquatic, floating ; fruit-stalk short ; peri- 



stome double Fontiiialea. 



PLEUROCARPI. 



Stem compressed, pinnate ; fruit-stalk short 



or none . . . . . . Neckerece. 



Leaves solid ; leaf-cells dot-like ; capsules 



erect Leucodontea. 



Stem flattened ; leaves soft ; cells large ; 



calyptra conical-lobed . .. . . Hookeriea. 



Leaves imbricated; capsule pear-shaped 



with a distinct neck .... Fabroniea. 



Capsule symmetrical ; leaf-cells minute, pa- 

 pillose ...... Leskeacea. 



Leaf-cells narrowly rhomboid or linear, 



quadrate at the base ; capsule erect . Orthothecieoc, 



Peristome double; fruit-stalk long; calyptra 



cleft on one side .... Hypnea. 



