THE BOG-MOSSES OF ESSEX. II5 



S. molluscum forma vobusta Warnst. 



Between Theydon and Wake Arms ! ! ; Warley 

 Common ! ! 



SPHAGNA RIGIDA. 

 «S. compactum D.C. 



N. Essex (Dixon). 

 vav. imbvicatum Warnst. 



High Beach (Varenne) ! ; Thomas' Quarters, Epping 



Forest ! ! ; Tiptree Heath (Varenne) ! ! 

 vav. subsquarvosum Warnst. 



Tiptree Heath ! ! 



SPHAGNA SUBSECUNDA. 



[The classification of the species comprising this group rests 

 primarily upon the distribution of the pores on the inner and 

 outer surfaces of the branch leaves, and since almost all possible 

 variations occur, and plants with very varying appearance have 

 a similar distribution of pores, the classification becomes 

 ■exceedingly difficult. I have regarded all the forms having a 

 conspicuously greater number of pores on the outer surface of 

 the leaf and the istem leaves of medium size as belonging to 

 S. inundatum — the type of the group I have failed to find in the 

 county. It is possible that all the forms may have to be 

 regarded as varieties of one and the same species, so closely do 

 they run to one another and so little does the habit seem to be 

 correlated with the anatomical characters in many of them.] 



S. inundatum Warnst. 



" On the forest by the road from Debden Green to the 

 camp, Ambres' Banks " (Forster) ! ; Thomas Quarters, 

 Epping Forest ! ! ; Wake Valley ! ! ; Strawberry Hill, 

 Epping Forest ! ! ; nr. Mt. Pleasant, Epping Forest ! ! ; 

 Great Monk Wood ! ! ; nr. Rising Sun, Walthamstow ! ! 

 and other parts of Epping Forest near High Beach; 

 N. Weald, Epping Lower Forest!!; Hainhault 

 Forest ! ! ; Norton Heath ! ! ; Mill Green Common ! ! ; 

 Warley Common (Varenne) ! ! ; Linguard Common ! ! ; 

 Tiptree Heath (Varenne) ! ! ; Little Baddow 

 Common ! ! ; nr. Chelmsford (Greenwood) ; Galleywood 

 ■Common (Varenne) ! ! 



