70 MR, W. MITTEN ON THE MOSSES OF 



D. Tasmanicus (Tridontium, Hook.fiL). 



Hab. Tasmania, fossiliferous limestone. Meander River, Mr. Archer. 



D. papillatus, Hook.fiL et Wils. 



Hah. Tasmania, the Hummocks, Mr. Archer. 



D. cyathicarpus (Zygodon, Mont.). 

 Hab. Tasmania, Cheshunt, Mr. Archer. 



This and the allied European species, D. Lapponicus and D. Mou- 

 geotii, referred to Zygodon, and more recently, by M. Schimper, pro- 

 posed as distinct, under the name of Amphidium, scarcely differ from 

 Rhabdoweissia, except in the absence of a peristome; and Rhabdo- 

 weissia itself is not generically separable from Didymodon. 



8. HoLOMiTEiUM, Brid. 



H. cirrhatum (Weissia, Hedw.). 



Hab. Tasmania, Cheshunt, Mr. Archer. 



Like those specimens collected in Victoria, Australia, by Dr. F. 

 Miiller, but, except in being rather more slender, not diflferent from 

 European specimens. 



III. Leucobbtacejj. 



1. Lextcobettjm, Hampe. 



L. candidum. Dill. 



Hab. Tasmania, Cheshunt, Mr. Archer. 



IV. Teichostomace^. 



I. AsTOMUM, Hampe. 



A. cylindricum (Phascum, Taylor). 

 Hab. Tasmania, Cheshunt, Mr. Archer. 



2. Weissia, Hedw. 



W. contro versa, Hedw. 



Hab. Tasmania, Port Sorrell, Long Hill, and Cheshunt, Mr. Archer. 



3. ToETTJi/A, Hedw. 



T. Australasiae, Hook, et Grev. 



Hab. Tasmania, west side of Cataract, Launceston, Mr. Archer. 



T. torquata, Taylor. 



Hab. Tasmania, Doublegate Park, Mr. Archer. 



T. calycina, Schw. 



Hab. Tasmania, Port Lovell, Mr. Archer. 



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