CHESHIRE ROSES 139 



It seems to approach var. caloplujlla Kouj, but is not identical with 

 specimens so named in Herb. Brit. Mns. 



li. ARVATiCA Baker p.p. Although some confusion surrounds 

 this name, I retain it, in the meantime, to cover the series of forms 

 of the R. dumetorum group having biserrate leaflets. It seems per- 

 fectly clear what Baker meant by R. arvatica when he states in > 

 MoHoi/ra'pli of British Roses, p. 229, that it "bears much the same 

 relation to urhica that dumalis does to lutetiana.^'' I have not 

 encountered any rose in Cheshire that could be described as a biserrate 

 urhica, but there is a specimen from Grange Farm in Herb. Brit. 

 Mus. (No. 1455, Herb. WoUey-Dod) labelled R. hemitricha Uip. 

 teiite Dingier. Kipart describes his plant as differing from R. urhica 

 " in its villous and glandular petioles and its doubly dentate leaflets." 

 As Colonel WoUey-Dod points out, specimens are scarcely more than 

 irregularly serrate, so they differ but slightly from forms of R. urhica 

 Lem. 



B. Deseglisei Bor. Duckington Wood. No. 1499, ex herb. 

 Wolley-Dod in Herb. Brit. Mus. 



B. &LAUCA Vill. sp. agg. This boreal or montane aggregate is 

 very sparsely distributed in Cheshire. 



li. Crepiniana DesegL = i?. Reuteri God. A uniserrate form 

 and the type of Villars's R. glauca. " Hedges of the fields between 

 Moreton and Hoylake," Flora of Liverpool District. 



*B. SUBCRISTATA Baker. This is the commonest form of the 

 glauca group. I have it from between Newton and Hoylake, Brim- 

 stage, Thornton Hough, Baby, and Irby. 



B. EUGAX Gren. Two plants, one from Baby Mere, the other 

 near the bridge that crosses Arrow Brook between Moreton and Meols, 

 are referable to this segregate, although the peduncles are rather 

 feebly hispid. 



B. coRiiroLiA Fries sp. agg. Bare. Becorded in Flora of 

 Cheshire as occurring in good quantity at West Kirby, and there is 

 a specimen by Webb from this station in Herb. Desegl. \?^Y.frute- 

 torum Bess, and var. implexa Gren. are recorded for the county in 

 List of British Roses. 



*B. SUBCOLLIXA Chr. Very rare. Extremely well-characterized 

 specimens of this were obtained from a sii>gle plant between Brom- 

 borough and Baby. I am not certain that this is not a new record 

 for England. 



B. TOMENTELLA Lem. Not common. Specimens from four 

 localities, all in the neighbourhood of Meols, show considerable 

 variation in the density of the subfoliar glands, and it does not 

 appear possible to distinguish varieties readily by diff'erent degrees of 

 glandularity. The peduncles in my specimens are more or less hairy, 

 and although Leman's key gives glabrous or naked peduncles for 

 R. tomentella, I think the Meols plants must be referred to his 

 species. The alternative is to place them to R. Borreri Woods, 

 which has peduncles " with weak setse or white hairs or even dense 

 pvibescence." But if large leaves and a lax habit are, as Wolley- 

 Dod believes, distinguishing characters of R. Borreri, then my plants 



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