242 MR. G. E. HUNT ON MOSSES NEW TO BRITAIN. 



subcernuous. The habit also of the three species is quite 

 diflFerent. 



Eurhynchium Mavis, Hedw. {H. dispalatum, Wils. MS.). 

 Allied to H. Swartzii, areolae larger. Sussex, Mr. Mitten. 



Rhynchostegium megapolitanum, Bland (H. confertum, 

 var. meffapolitanum,Wih. Bry. Brit.) . Sandy shores : South- 

 port, Dublin, Hayle near Penzance, Sussex. I once saw 

 the var. meridionale, Schr., at Southport. 



Hypnum giganteum, Schr. Frequent in bogs, but very 

 rare in fruit. In fine fruit at Wybunbury Bog, Cheshire. 

 Discovered by Mr. Wilson. 



Of the group Adunca we have four additional species, 

 viz. : — 



Hypnum intermedium, Lindb. = iy. Cossoni, Schr.? Fre- 

 quent in bogs. 



Hypnum vernicosum, Lindb. [H. pellucidum, Wils, MS. ; 

 H. aduncum, var. tenue, Wils. Bry. Brit.). Wybunbury Bog, 

 Cheshire, Mr. Wilson. 



Hypnum Sendtneri, Schr. Bogs, Scotland, A. McKinlay. 

 Probably not unfrequent. 



Hypnum Wilsoni, Schr. [H. aduncum, Sch. Syn., but 

 not of Berkeley^'s Handbook, nor Wils. Bry. Brit., which 

 are H. ewannulatum, Giimb.) . Abundant at Southport. 



Although the above four species are usually distinguished 

 at once in the field, it is almost impossible to lay down any 

 certain characters by which to identify them ; they are all 

 dioicous, and may yet prove (distinct though they are in 

 appearance) to form, along with H. ewannulatum and H. 

 Kneijffii, a single species. 



Whilst at this section, it is curious to mark the many 

 species to which the name aduncum has been applied 

 (Dr. Schimper has conclusively proved that it is really ap- 

 plicable to the small form of H. Kneiffii) :— 



1st. To H, commutatum /9 condensatum, together with 

 H. revolvens, by Hooker and Taylor. 



