214 TASMANIAN BRYOI'HYTA, 



R.S. TAS. 



Uhaphidosfef/inm cervicidatum (H.f. et W.) 

 8y 11.: Hypnum cerviculatum H.f. et W. 



Decumbent, livid green, main shoots elongating, closely 

 set with short lateral branches, forming a broad dense mat. 

 Leaves shining, strongly secund, narrow oblong-ovate or 

 lanceolate, gradually narrowing into long attenuated ser- 

 rated a.pex, 1-7 mm.; margin subserrulate, nerve none; 

 cells long vermiform, three or four at the angles oblong, 

 very large. Seta slender, reel, 1.5 cm.; capsule oblong, cern- 

 uous, straight, 1.4 mm. 



Common on dead wood and stone. 



Bhaphidostecjiiom cy par lo ides (Brid.) 

 Syn.: Hypninn leptorrhynchum Brid. 



Decumbent, stems elongated, bearing few leaves but many 

 small lateral branches, pale greenish yellow. Leaves shin- 

 ing, secund, lanceolate, more gradually tapering into an 

 attenuated point than in adjoining species, 1.5, upper por- 

 tion acutely serrate; nerve none; cells vermiform, three or 

 four at the angles oblong, inflated, large. Seta very slender, 

 1.5-2 cm.; capsule pendulous or cernuous, narrow oblong, 1 

 mm. ; peristome pale. 



On deadwocd, common. 



Mhaphidostegium Joliffii (Mitt.) 

 Syn. : Hypnum Joliffii Mitt. 



Procumbent, with few long irregular branches, livid 

 yellow. Leaves loosely secund, shining, oblong-ovato with 

 an attenuated apex, 2 mm. ; margin usually seriailate to- 

 wards the apex; nerve none; cells long vermiform, with 4 

 at the angles large inflated, linear-oblong. Seta 1.5 cm., 

 red, bent at the apex ; capsule ceniuous, oblong, straight, 

 1.4 mm. 



When growing in water often dark brown, leaves less 

 secund and less attenuated. 



Very common on margins of woodland streams. 



Rhaphidosteyium homomallum (Hpe.) 



Coarser than the other members of the genus, chestnut 

 brown or golden, in dense mats, branches many, suberect, 

 short. Leaves slightly secund, ovate-lanceolate with a 

 short, straight, acute point, 1.6 mm.; margin plain; 

 nerve none; cells vermiform, shorter and more incrassate 

 than in other species, about four at the basal angles very 

 large. Seta 1 cm- ; capsule erect, slightly curved, narrow 

 oblong, 2 mm. 



Pirate's Bay, East Coast; Eaglehawk Neck. 



