120 TASMANIAN BRYOPHYTA, 



Peristome of eight cilia or none. 

 Margin plain. 



Leaves ovate, sub-acute intermedius. 



Leaves lanceolate, acute Reinwardtii. 



Margin with a few teeth anomalous. 



Exostome present, but rudimentar}^ Brownii. 



Peristome of boith series- 



Leaves obtuse obtusif olius. 



Leaves acute, nerve vanishing ... Menziesii. 



Leaves acute, nerve excurrent minutus. 



ZYOODON INTERMEDIUS, Br. et Schw. 



Stems slender, yellow-green, sub-erect, usually in a 

 dense mat, 2-3 cm. Leaves patent, ovate, sub-acute, not 

 crisped when dry, about l-l m.m. ; margin plain; cells 

 rotund, rather incrassate, nodules prominent; nerve van- 

 ishing at a distance from the apex. Seta at the base of in- 

 novations slender, 5-10 m.m. ; capsule oblong, cylindric, 

 with six prominent ribs when dry, tapering below, 1.4 

 m.m. ; lid with an oblique rostrum half as long ; peiristonie 

 of eight incurved cilia. 



On wood, Mt. Wellington, Mt. Faulkner. 



ZYGODON REINWARDTII, Schw. 



Yellowish green, in dense tufts, 1-2 cm. Leaves pale, 

 ovate-lanceolate, very acute, concave, patent, undulate, 1.2 

 m.m. ; margin plain ; nerve bold, lost a little distance be- 

 low the apex ; cells rotund, less incrassate than in Z. int-er- 

 mediusi, nodule® minute. Seta left low down the stem by the 

 growth of innovations, slender^ 1.5 m.m. ; capsule naiTow, ob- 

 long, obscurely ribbed, 1.7 m.m.; lid slender, half as long; 

 peristome of 8-16 irregular cilia. 



Slopeis of Mount Wellington. 



ZYGODON ANOMALOUS, D. et M. 



Stems slender, often 2-3 cm., freely branched. Leaves 

 divaricate, narrow, ovate -lanceolate, wavy when dry, acute, 

 L2 m.m.; margin often with a few spinous teeth above; 

 nerve narrow, vanishing in the apex ; cells rotund, with very 



