BY L. RODWAY. 105 



MACROMITRIUM : Spreading or creeping, with 

 short, erect branches, usually yellowish or red- 

 dish. Calyptra usually hairless ; peristome 

 generally absent. Calyj^tra often split on one 

 side. 



Calyptra cucuUate with a nan-ow base. Plants small, 

 tufted, or creeping. 



ZYGODON : Capsule oblong to cylindric. 



AMPHIDIUM : Capsule goblet-shaped, with a 

 broad mouth. 



GRIMMIA, Ehrh. 



Small, densely tufted, rarely larger and looser. Leaves 

 minutely papillose or smooth, opaque, usually ending in a 

 colourless, often hairlike, apex; cells rotundo-quadrate, 

 and strongly incrassate, longer towards the base. Seta, short, 

 or, if lon^' cyL'neous, as in Campylopus ; capsule erect, 

 oblong to subspheric, lid umbonate or rostrate ; calyptra 

 mitrifomi, with a short, spreading, lacerated base, rare- 

 ly split only on one side ; peristome of 16 short, erect 

 teeth, rarely absent. 



Sec. 1, SCHISTIDIUM.— Capsule nearly sessile, im- 

 mersed in the terminal leaves, broad, mouth wide ; lid 

 normally falling off with the columella attached, but usual- 

 ly not so in Tasmanian specimens. Plants loose. 



Leaves with colourless tips apocarpa. 



Leaves without colourless tijDS mutica. 



Sec. 2, EUGRIMMIA.— Seta developed; capsule ob- 

 long, small mouthed. Plants small in dense cushions. 

 Leaves tipped with a long, colourless point. 



Seta cygneous. 



Leaves ovate-lanceolate, dark cygnicollis- 



Leaves lanceolate, lighter green ... trichophylla. 

 Seta short, straight leiocarpa. 



