126 TASMANIAN BRYOPHYTA, 



LEPTOTHECA, Schw. 



Stems numerous, erect, simple, in dense tufts. Inflor- 

 escence, terminal on short stems, with longer leaves, often 

 becoming lateral by elongation of a sterile innovation. 

 Leaves rather short, imbricate, plurifarious, rather nar- 

 row, of rather firm texture, cells small, irregular, quadrate 

 or rotund, incrassate; nerve bold, excurrent. Seta long, 

 slender; capsule cylindric, smooth, erect, or slightly in- 

 clined ; lid, short pyramidal ; calyptra narrow, cucullate ; 

 peristome double, exostome of 16 short, pale, erect, lanceo- 

 late, minutely papillose teeth ; endostome a short, irregular 

 m.embrane, bearing 16 irregular, very delicate, slender pro- 

 cesses, often perforate with a few iiTegular cilia interven- 

 ing. 



LEPTOTHECA GAUDICHAUDII, Schw. 



Pale green, stems usually about 2 cm. Leaves patent, 

 narrow, ovate, acumiuate, with a bold nerve point, 3 ni.m. ; 

 margin plain, or with a few irregular teeth towards the 

 apex ; nerve bold, excurrent. Leaves on fertile shoots 

 longer lanceolate. Seta 2-4 cm. ; capsule reddish-brown, 

 2-4 m.m.; irregularly furrowed when dry, tapering at the 

 base. 



Mt. Wellington, Mt. Field, East Coast. 



HYMENODON, Hf. et W. 



Delicate, creeping, piliferous stolons, sending up erect, 

 simple, delicate, leafy branches. Leaves small, delicate, 

 oblong, terminated by a delicate hair point. Seta arising 

 from the base of a leafy branch, long and slender; cap- 

 sule oblong, smooth, with a rather broad mouth ; lid con- 

 vex, with a slender, oblique rostrum, as long as the cap- 

 sule, but in some cases shorter and conic ; calyptra short, 

 very narrow, cucullate; peristome single, of"^ 16 linear- 

 lanceolate, membranous teeth, truncate above, and inserted 

 into a short basal membrane; externally covered with 

 closely-appressed short bristles, giving the"^ teeth a striate 

 appearance; the teeth tend to divide in the middle line 

 into two slender legs. 



