100 ' ROSACE Jl. 



groups in this section, corylifolius, nemorosus, and ctssius; and whilst 

 althaifolius is a botanical dust-bin between the first and second, 

 BaJfourianus is a similar receptacle for intermediates between the 

 second and third ; Warren. 



26. R. tuberculatus, Bab. 



* R. dumetorum' (Blox.). Cyb. Br. iii. 345. 

 I. Long Lane, bet. Swakeleys and Hillingdon ; Warren, 



III. Harrow ; Herb. Harr. 



IV. Willesden Lane ; Warren. 

 ' V. Horsenton Hill. 



VII. A bramble of this group in the hedge bounding Kensington Gardens 

 from the Palace northwards ! ; Warren. 

 A common hedge bramble about London. Our plant must certainly be 

 ncluded under this somewhat large * species' of Babington; it is a less 

 intense form than the northern nemorosus 5, ferox, Leight., and is 

 certainly distinct from the nemorosus var. pilosus of continental au- 

 thors, typical plants of which grow in a hedge near some old fir-trees 

 on Barnet Common.* Probably, some of the weakest specimens of 

 the metropolitan form of ' tuberculatus ' would be placed among the 

 forms of B. althceifolius by many botanists, the limits of which 

 ' species ' I am unable to exactly determine ; Warren. 



27. B. CcBshis, L. Dewberry. 



B. repens fructu casio, Ger. em. (Blackst.). Cyb. Br. i. 352; iii. 419 

 and 346 ; Comp. 161. Syme E. B. iii. t. 456. 

 I. Harefipld ; Blackst. Fasc. 88. Bet. Uxbridge and Hillingdon ; 



Warren. Chapel Lane, Pinner ; Hind. 

 II. Bet. Sunbury and Hampton ! ; Newb. Staines Moor, By the towing- 

 path bet. Hampton Court and Kingston Bridge, plentiful. 

 III. By the Cran, Twickenham. 



V. Brentford ; Cherry. Perivale ; Lees. 



* The group of Nemorosi in this genus requires complete rearrangement ; they may be 

 roughly defined as aU setose brambles of Babington's C(xsii which are not R. ccBsius, 

 L., R. corylifolius being for all practical pui-poses an unsetose bramble. The fol- 

 lowing is suggested as a provisional settlement, one by no means exhaustive, new 

 forms being ahnost certain to be found :— 

 R. nemorosus. 

 a. pilosiis=Ii. tuberculatus, Bab, Distinguished from ferox by the more equal arma- 

 ture of the stem, and by the more do%vny leaflets and longer panicle. Leaflets 

 flat. 

 /3. intermedivs. The weakest and least setose of the group. The barren stem is less 

 prickly than in pilosus, the panicle with a few large distant prickles, and few inuch 

 smaller ones between. Common about London. 

 y. fero.r, Blox. Strong and intense. Corresponds to Babington's diversifoHvs. Prickles 

 of barren stem and panicle abundant and unequal, panicle very short, leaflets very 

 variable but always rugose. The common hedge-bramble of Cheshire, York, and 

 Shropshire, but I have never seen it quite typical south of these counties. 

 2. diversifolius, Blox. By this I understand a very intense fomi of var. -y, vnth a long 

 open panicle. An extremely prickly plant ; much more local thanfe7'ox, but hardly 

 worth a letter to itself. ( Wan-en.) 



