]88 TASMANIAN BUYOPHYTA, 



R.S. TAS. 



3-4 series of linear cells, but not forming a distinct or 

 thickened border ; nerve bold excurrent in a. very short bold 

 point; cells long rhomboid, walls thin, averaging 40 x 10/^. 

 Seta long ; capsule clavate-pyrif orm, dark, with" slender curv- 

 ed neck, but in drier conditions the capsule pale, and the 

 neck not conspicuously long or bent; mouth slightly con- 

 stricted, lid pyramidal. 



Mt. Nelson, slopes of Mt. Wellington, Colebrook, etc 



Brywn hla^idum H.f. et W. 



Rather robust, in dense mats in running water, dark with 

 livid yeillov/ish-green shining tij^s, branches 1-2 cm. Leaves 

 erect, imbricata oblong, obtuse, of thin texture, trans- 

 2>arent, 2 mm., m.argin entire or subserrulate ; neirve slender, 

 red, vanishing in the extreme apex ; cells linear-rhomboid 

 with an ill-defined border of linear cells on ihe margin^ 

 towards the apex becoming short rhomboid. Rest not 

 seen. 



On rocks in running water, slopes of Mt. Wellington, 

 Meander River, Maria Island, etc. 



Bri/um laevigatuni JiJ. et W. 



Robust, often exceeding 3 cm-, black below, yellowish- 

 green at the tips. Leaves erecto-patent, distributed along 

 thei shoot, concave, translucent, of rather firm texture, 

 broadly oblong, generally apiculate, 3 mm. ; maJ-gin with 

 one or two series of linear cells, subserrulate ; nerve bold, 

 tapering above and lost in or below the apex ; cells shortly 

 rhomboid, strongly incrassate, unequal, averaging 29 x 16 h. 

 Seta slender, 5-6 cm. ; capsule pyriform, 2.5 - 4 mm., base 

 tapering, mouth rather constricted ; lid hemispheric, um- 

 bonate. 



Slopes of Mt. Wellington, Alma Tiers. 



Bri/um ruhiglnosum H.f. efc W. 



Erect, densely caespitose, stems simple, often 5 cm., rather 

 robust and red. Leaves delicate, broadly oblong, slightly 

 apiculate, 2.3 mm. ; margin with a thickened border of 

 long incrassate cells, broader and revolute below, plain 

 above ; nerve red, vanishing at a distance from the apex ; 

 cells regularly rhomboid, thin walled, averaging 50 x \1 h-. 

 Rest not seen. 



St. Patrick's River. 



Brywn chrysoneuron CM. 



Rather small, in dense cushions, stems about 5 mm- 

 Leaves dispersed, lanceolate, rather obtuse, 1 mm. ; margin 



