224 TASMANIA^ BRYOPHYTA, 



E.S. TAS. 



in most genera the leaves and branches are strongly com- 

 planate ; nerve may be well developed to obsolete ; the 

 cells short oblong to vermiform. In most genera the cap- 

 sule is nearly sessile; endostome with filiform processes. 



Capsule sessile. 

 Dendkocryphaea. Nerve lost below apex; cells small 

 rhomboid ; branches very short. 



Ceyphaea. Nerve lost below apex; cells small, rhom- 

 boid; branches elongating. 



Ehabdodontium. Nerveless; cells broadly linear; 

 branches very short. 



Neckera. Nerves faint or none ; cells oval to rhom- 

 boid ; leaves with undulating surface. 



Seta long. 



HoMALiA. Leaves unsymmetric; nerves obsolete; 



cells rhomboid. 

 Trachyloma. Leaves symmetric; nerve obsolete; 

 cells vermiform. 



Sub family. LeuCOdontaceae. Medium sized mosses of 

 rather soft texture, pale; leaves imbricate, not complan- 

 ate, nerveless or nerve obsolete; cells rhomboid to vermi- 

 form, seta never very short ; peristome imperfect, in one 

 species astomous. 



Lepyrodon. Leaves obtuse with a hair-like apiculus, 



cells vermiform. 

 Glyptothecitjm. Leaves ovate-lanceolate acute ; cells 

 fusiform with a broad band of oblong cells on the 

 margin. 

 Pleurophascum. Leaves obovate with a flagellate 

 apiculus; cells large, rhomboid. Capsule large, 

 globose, astomous. 



Sab-£ami]y. Hedwigfiaceae. Medium sized mosses of dark 

 colour or dingy green. Leaves plurifarious, tough, imbri- 

 cate, nerveless; cells quadrate to linear. Capsule on a 

 seta terminating a short lateral branch or sessile and term- 

 inal ; peristome none. 



Rhacocarpus. Seta not very long placed below the 



branches. Leaves with long apiculus; cells lineal*. 



Hedwigidium. Capsule sessile. Leaves dingy green; 



cells quadrate. 

 Hedwigia. Capsule sessile. Leaves with white tips; 

 cells quadrate. 



