14 tasmamjan bkyophyta, 



PHASCUM CYLINDRICUM, Tayl. 



Usually densely caespitose, about 4 m.m., inclusive of 

 capsule. Leaves few, thick, papillose, acute, nerve con- 

 tinuous, about 1 m.m. Seta erect, strong, i — 1 5 m.m. Cap- 

 sule erect, reddish, shining, narrow, oblong, apiculate, 1 — 

 2 m.m. 



Domain, Hobart, Macquarie Plains, etc. 



POTTIA Ehrh. 



Small, simple, or divided in caespitose or pulvinate 

 groups. Leaves broad, obovate or spathulate, pointed; 

 cells rather large, quadrate-hexagonal, rectangular, and 

 colourless at the base. Capsule, turbinate or subcylindric, 

 teeth rudimentary or imperfect, sometimes absent ; when 

 well-developed, flat, lanceolate and bipartite; in a few 

 instances the lid minute, and not falling, closely approxi- 

 mating to Phascum. 



A group of small plants closely allied on the one side 

 to Phascum, on the other to small forms of Tortula. 



POTTIA TASMANICA, Broth. 



Minute, erect, without the seta about 1 m.m. Leaves 

 erect, broadly ovate, apiculate, papillose, margin recurved; 

 nerve bold, continuous. Seta 2 m.m., capsule erect, oblong. 

 0.5 m.m. ; lid, conic ; peristome, none. 



On the ground near Brighton. 



TORTULA Hedw. 



Small, erect, simple, or with few branches, generally 

 caespitose, green, rarely brownish. Leaves from broad fx. 

 spathulate, the greatest breadth above the middle ; apex 

 obtuse, but sometimes slightly acuminate ; nerve excurrent 

 in a short point, or colourless hair; cells rather small, 

 rotund, or quadrate, opaque with a nodulose-papillate 

 surface, rarely smooth ; those towards the base longer and 

 colourless. Capsule, oblong to cylindric, equal or slightly 

 oblique, erect on a long seta; lid, conic to rostrate; calyp- 

 tra, narrow, cucullate, long ; peristome, from rudimentary 

 to long and twisted with a cribrose base. 



