GENUS RUBUS IN SUPPL. TO " ENGLISH BOTANY ' 189 



R. nmtabilis, Genev. A description by Professor Babing- 

 ton is given, but without date or reference ; the date would 

 be important, as the Professor's views underwent consider- 

 able change (see e.g. "Journ. Bot.," 1886, p. 232). Four 

 localities are given by Mr. Brown from four different counties. 

 The " Cleves, Yorks," plant was named by Genevier himself; 

 the Plymouth plant was also named by Genevier, but as 

 var. nenwrosus. The other two have no standing (Hants, 

 Staffs). It is enough to turn to Mr. Brown's first reference to 

 the "Botanical Exchange Club Report" (1883, p. 87) to see 

 that, in the case of the Ham Moor, Staffordshire, plant, the 

 evidence was nil I the specimens poor, and the opinions 

 expressed conflicting ; whilst the Ramsey (Hants) plant 

 was named R. nmtabilis with confidence by Professor 

 Babington, before he had rectified his idea of Genevier's plant. 

 When fresh material was sent to the Botanical Exchange 

 Club (see Report, 1887, p. 175), Mr. Archer Briggs, who 

 knew the Devon form well, declined to name it mutabilis. 



R. Lejeunii, W. and N., var. festivus, Bab. For this 

 German bramble Dr. Focke may be considered a safer guide 

 than Genevier's Herbarium, on which Professor Babing- 

 ton (as quoted by Mr. Brown) relied. Dr. Focke holds that 

 R. Lejeunii, W. and N., and R. cricetorum, Lefvr., are closely 

 allied forms, and that we have the latter form, but no precise 

 R. Lejeunii. It must, however, be borne in mind that the 

 confusing paragraph in the Supplement has nothing to do 

 with R. Lejeunii, W. and N., but with a form or forms which 

 had been mistaken for R. Lejeunii. The R. Fuckclii, Wirtg., 

 referred to is regarded by Dr. Focke as a form nearly allied 

 to R. obscurus. R. foliosus and R. adornatus will be com- 

 mented on in the notes following. 



R. flexuosus, Muell. and Lefv. Dr. Focke has convinced 

 us that R. flexuosus, Muell. and Lefv. (R. saltuum, Focke), is 

 a synonym of R. foliosus, W. and N., the older name. 



R. tereticaulis, P. J. Mueller. Mr. Moyle Rogers' notes 

 ("Journ. Bot.," 1893, p. 7) will have sufficiently shown the 

 distinctness of this species from R. flexuosus, of which Mr. 

 Brown surmises it may be " merely a slight form." 



