352 Ingham : Sphagna. 



In Mr. Wheldon's Synopsis of the European Sphagna 

 there are 59 species, 228 varieties and 407 forms known to the 

 present time in the Continent, including the British Isles. 



Of the above numbers there are so far recorded in the British 

 Isles 45 species, 134 varieties and 258 forms. 



It is clear, then, that the British Isles are very rich in 

 Sphagna, not only in the numbers of species, varieties and forms, 

 but in the quantity of plants as seen by the writer in his travels 

 through the British Isles. 



Appended is a list of Sphagna recorded for Yorkshire only, 

 to June, 1917. The place where found precedes the name of 

 the collector, and the writer is responsible for all those that 

 end in a place only. 



The writer is indebted to Mr. Wheldon and to the Synopsis 

 for being able to bring most of his Sphagna to the new system 

 as described in the Sphagnologia Universalis. 



Yorkshire Species, Varieties and Forms. 



Sphagnum fimbriatum Wils. Very common. 



var. robustum Braithw. (Near York) Anderson. 



var. validius Card., f. spectabile Warnst. (Wheeldale) ; 



f. compactum W. (Saltersgate Beck), 

 var. intermedium Russ., f. densum Wheld. (Strensall Com.). 

 var. tenue Grav. Common, fruiting abundantly on 



Askham Bog. 

 var. laxifolium W. (Arncliffe Wood, Goathland.) 

 S. Girgensohnii Russ. Not common. 



var. robustum W. (Cronkley Fell) Jones and Horrell. 

 f. speciosum W. (Cronkley Fell) Jones and Horrell, 



and (Black Hambleton). 

 f. coryphceum W. (Cronkley pastures) Horrell. 

 f. laxifolium W. (Cronkley Fell) Jones and Horrell. 

 var. microcephalum W. (Cronkley Fell and Mickle Fell) 



Jones and Horrell, and (Wheeldale). 

 var. gracilescens Grav. (Cronkley pastures) Jones and 



Horrell. 

 var. stachyodes Russ. (Cronkley pastures) Jones and Horrell. 

 S. Russowii W. Not common. 



var. Girgensohnioides Russ. (Farngill.) 



f. flavescens Russ. (Cronkley Fell) Jones and Horrell. 

 f. virescens Russ. (N.W. Yorks.) Wheldon, (Cronkley 

 Fell and Mickle Fell) Jones and Horrell. 

 var. rhodochromum Russ. (Cronkley Fell and pastures) 



Jones and Horrell, (near White Force), 

 var. poecilum Russ. (Cronkley Fell) Jones and Horrell, 

 and (Cronkley pastures). 



(To be continued J, 



