210 TASMANIAN BRYOPHYTA, 



R.S. TAS, 



Campylium tlecufisatam (H.f. et W.) 

 Habit of the last, only more branched and with smaller 

 light green leaves. Leaves broadly ovate with an acumin- 

 ate apex, 1 mm., margin subserrulate, nerve not strong,, 

 lost in apex; cells nearly rhomboid, thin-walled. 



Recorded from Tasmania, but no specimen in the collec- 

 tions, and ]Dcssibly an erroneous identification. 



Campylium molle Broth. 



Slender, decambent, with numerous, short, lateral 

 branches forming close mats on stones! in running water, 

 3-6 cm. Leaves broadly ovate with a short, sharp, acu- 

 minate apex, 1.2 mm.; margin subserrulate; nerve broad 

 but faint, lost in the apex ; cells thin walled rectangular 

 to rhomboid. Differing from C. decussatmn slightly in 

 habit and in the nerve being fainter. 



Coal River Tier. 



Ptychomnion H.f. et W. 



Robust, deeumbent, with few irregular branches. Leaves 

 in many rows, diva.ricate, broadly elliptic or ovate from a 

 narrow base apex suddenly narrow, flat and rather long ; 

 nerve none; margin subserrate below, spinulose above; 

 cells linear, strongh'- incrassate, the ends bluff with lateral 

 connections. Seta tall, slender, dark, smooth ; capsule 

 broadly cylindric, arcuate, strongly ribbed, with a shortly 

 attenuated neck ; lid hemispheric with a subulate rostrum 

 as long as the capsule ; calyptra, long, cucuUate, smooth ; 

 exostome teeth cartilaginous, lanceolate, slender, with a 

 very attenuated clo'Sely trabeculate apex ; endostome mem- 

 brane deep, the processes perforated, lanceolate from a 

 broad base, usually with two or three short, cilia between 

 them. 



Pti/rhomnion aciculare (Brifl.) Mitt. 



Forming extensive yellow or greenish mats, stem rather 

 slender, red, tough. Leaves 3-4 mm. Seta straight, 2-5-3 

 cm. ; capsule 3 mm. 



Very common on the ground and on deadwood. 



Hypnodendron Mitt. 

 Stem erect with a fascicle of branches at the top. Leaves 

 of rather soft texture, distichous, thin ; margin and nerve 

 armed with single or double spinulose teeth ; nerve strong, 

 lost in the apex ; cells linear. Seta arising from the base 

 of the branches, slender, long; capsule cylindric, ribbed ;. 



