220 TASMAXIAX BRYOPHYTA, 



R.S. TAS. 

 ACROCLADIUM Mitt. 



Stems decumbent, simple or with few irregular branches, 

 the einds bluffly acute. Leaves concave, imbricate, short 

 and very broad, orbicular or with an obtuse apex, with a 

 small auricle at the angle, glossy ; nerves two or one, short, 

 faint or obsolete; cells vermiform, usually with forked endi-:, 

 a well defined patch of numerous thin walled quadrates 

 in or near the auricle. Seta slender, very long, smooth ;. 

 capsule oblong or cylindric, slightly bent; lid shortly 

 conic; 23eristome pale, teeth lanceolate; endostome mem- 

 brane ^- length, cilia unequal- 



AcrocJadmm auriculatum (Mont.) Mitt. 



Procumbent, elongating to 10 cm., vaguely branched. 

 Leaves shining, suborbicular, concave, ©recto -patent, im- 

 bricate, 2 mm. ; margin entire ; nerve usually single, rarely 

 double or none ; cells long and narrow, the patch of lax 

 quadrates placed between the insertion and the auricle. 

 Capsule short, broadly oblong, with a short tapering neck. 



Slopes of Mt. Wellington. 



Acrocladium cklamydophyllum H.f. et W. 



Very similar in habit to A. onriculatuin. Nerves con- 

 sistently two ; cells shorter and broader, the quadrates very 

 numerous, placed in and occupying the auricle. CapsuJe 

 cylindric with a, tapering base. 



Very common on ground. 



Thuidium Br. Sch. 



Decumbent, the main axis elongating and bearing pin- 

 nate, bi-, or tri-pinnate branches usually rather regularly 

 arranged, at least the main axis more or less clothed with 

 paraphyllia. Leaves minute, ovate, acuminate ; nerve well 

 developed, lost above to excurrent ; cells very small, round 

 or quadrate, papillate. Seta long, smooth, arising from tht3 

 main axis; capsule oblong, curved, inclined; lid rostrate; 

 peristome teeth long, lanceolat©; endostome membrane 

 deep, processes slender, cilia 3-4. 

 Ultimate branches with paraphyllia. 



Branches regularly ])ectinate laeviusculum 



Ultimate branches without paraphyllia. 

 Branches rather roi^ular, with flaffel- 



late tips sparsum 



Branches irregular. 



Nerve in leaves of ultimate bran- 

 ches lost below apex unguiculatum 



