A HISTORY OF BERKSHIRE 



Vicia lathyroides, L. 



Fragaria vesca, L., var. bercheriensis, Druce 



Potentilla procumbens x sylvestris 



procurabens x reptans 



reptans x sylvestris 



Rosa sarmentacea, Woods, var. Deseglisei (Bar.) 



Epilobium lanceolatum, Sel>. and Maur. 



Crepis fcetida, L. (f extinct) 



[ setosa, Hall, f.] 



Hieracium vulgatum, Fr. 



[Anchusa officinalis, L.~] 



Scrophularia nodosa, L., var. bracteata, Druce 



Mentha piperita, Hurls. 



Scutellaria galericulata, L., var. leiosepala, Druce 



Galeopsis speciosa, Miller 



Chenopodium opulifolium, Schrad. 



ficifolium, Sfflf. 



murale, L. 

 Polygonum dumetorum, L. 



x Salix ambigua, Ehrh. 



Orchis maculata,i., var. ericetorum [E.F. Linton] 

 Tulipa sylvestris, L. 

 Narcissus Pseudo-narcissus, L. 



x Juncus diffusus, Hoppe 



bulbosus, L., var. Kochii, Druce 

 x Carex axillaris, Good. 



Molinia varia, Schrank, var. breviramosa (Pan.) 



var. major (Roth), Druce 

 Elymus europaeus, L. 



THE BRAMBLES (Rubt) 



As will have been gathered from the preceding pages, Berkshire is 

 found to be very rich in the forms of brambles, as these species delight 

 in heathy country with peaty and gravelly soils, such as are so well 

 represented in the Pang, Kennet and Loddon districts. The Oxford and 

 Kimeridge clays and chalk formation yield but few species, and over 

 the greater portion where these formations come to the surface we shall 

 find only R. ulmifolius, R. corylifolius and R. c&sius with their forms and 

 hybrids, unless in some woodland spot where R. leucostachys and forms of 

 R. Radula and R. rhamnifolius may be found. But on the greensand a 

 rich variety may be observed, the Boar's Hill range being especially 

 representative, and my friends Dr. Focke and the Rev. W. Moyle Rogers, 

 to whom we owe so much for the identification of these critical plants, 

 were both delighted with the forms they found. It was on this spot I 

 pointed out that beautiful species which I called a pink-flowered nitidus 

 to Dr. Focke, and he has since named it R. holerytbros ; and the heaths 

 and woods on the Bagshot sands are also very prolific. Among our 

 rarer plants are R. Colemanni, R. /enttginosus, R. su/catus, R. saxicolus, 

 R. holerythros, R. mercicus var. bracteatus, R. imbricatus and R. rudis. 

 Even now there is much work to be done at them, and several additional 

 species will assuredly be added to our list. 



THE ROSES 



are not so well represented, as we have no authenticated record in a 

 native situation of the burnet rose (R. pimpinellifolia}, hence Rosa invo- 

 luta, R. Sablni and R. hibernica, which are hybrids of this with other 

 species, are also absent. Rosa vittosa, L. (R. mo//is, Sm.) is also, I believe, 

 absent, although an allied species, R. mo/h'ssima, Willd., which is an 

 older name for JR. tomentosa, Sm., is widely distributed, and in one of its 

 varieties, var. pseudo-mollis (E. G. Baker), bears much resemblance to it. 

 We have also var. Sherardi (Davies) -subglobosa (Sm.),var.jy/i;w/r/j(Lindl.) 

 and var. scabriuscula (Winch.). The subcristate forms so common 

 in the north of Britain are very scarce, but we have R. glauca, as at 

 Tubney, and its variety var. crassifolia (Wallr.), which is the R. corii- 

 folia, Fries, and R. c&sia, Sm. ; the var. subcristata (Baker) also occurs. 



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