On Bog Mosses. 221 



Berggren, on Hunneborg mountain by Lindberg, and in various 

 places in Westphalia, Silesia, and Holland. 



In this country it was first found in 1853 by my friend Mr. 

 Anderson at Darnholme near Whitby, Yorkshire, but not then 

 determined, and the Kev. J. F. Crouch again collected it there in 

 fine fruit in August, 1871. It has also been found on Ben Lawers 

 by MacKinlay, and on Brickhill Heath, Bucks (Kev. J. F. Crouch), 

 and probably occurs in other localities, but has been overlooked. 



The two plants here brought together have been regarded by 

 Miiller, Schimper, and Hampe as distinct species, and Sullivant 

 also describes S. MilUeri as monoicous, and ;S^. molle as dioicous ; 

 Lindberg in 1863 published his opinion that they really belonged 

 to one species, and of this there cannot be the slightest doubt, since 

 they perfectly agree in structure as well as in external appearance. 

 To Lindberg also we are indebted for the discovery of the male 

 inflorescence, which I have not succeeded in finding. The name 

 molluscoldes though earliest in date is not retained for the variety, 

 being ungrammatical in construction, and inapplicable since mollus- 

 cum has ceased to appear as a species ; it has, moreover, a very 

 slight likeness to S. teneUum, but a considerable resemblance to 

 some forms of S. rigidum, though very difi'erent in texture. It 

 may be of interest to notice that Sph. Austini may now claim a 

 place in the British Flora, Dr. Moore having collected it in the 

 Island of Lewis in 1868, where it grows in great elevated hassocks. 

 The plants are taller, and more densely clothed with branches than 

 either the American or Scandinavian specimens. 



EXPLANATION OF PLATE XL. 



Sphagnum molle. 



a. — Plant from Darnholme. 



1.— Part of stem with branch fascicle and fruit. 



2.— Male inflorescence after Sullivant's figure. 



4'. — Perichsetial bract after Sullivanfs figure. 



4. — Ditto from British plant, ip. — Point of same. 



5. — Stem leaves. 5 a a. — Areolation of apex of same. 5 a b. — Ditto of basal 

 wing. 



6. — Leaf from middle of a divergent branch. 6 p. — Point of same. 6 x. — Trans- 

 verse section. 6 c. — Cell from middle X 200. 



7. — Basal intermediate leaf. 



9 X. — Part of section of stem. 

 10. — Part of a branch denuded of leaves. 



