-174 Mr. C. C. Babington on the British Rubi. 



does not agree with specimens of JR. amplificatus received from 

 Mr. Lees himself, which are very nearly allied to R. macro- 

 phyllus. 



Obs. 3. A form of this plant occurs in Apse Castle Wood, in 

 a dense shade, similar to that mentioned by Dr. Bell Salter as 

 his yS. frustratus of R. Wahlbergii (Ann. Nat. Hist. xvi. 371) ; 

 it is suberect with flaccid leaves and abortive flowers. This is a 

 state of arrested development. He is of opinion that this state 

 of the plants should be considered as a recognised variety, for 

 the reason that it is a permanent form, he having noticed it un- 

 changed in the same situation for many years. Its identity with 

 the fully-developed form described above is proved, not merely 

 by transition states, but by a plant of the erect and abortive form 

 having acquired the normal condition since it has been removed 

 into a garden. A similar state is found in R. discolor in more 

 exposed places. I observed this latter plant in that state on 

 ditch-banks near Cambridge in the autumn of 1845. 



7. R. tenuis (Bell Salt. !) ; caule procumbente tereti glabro, aculeis 

 deflexis sequalibus validis, foliis ternatis rarius quinatis subglabris 

 subtus viridibus pubescentibusque, foliolo terminali obovato-acumi- 

 nato, panicula decomposita, sepalis lanceolato-acuminatis fructui 

 parvo (nigro) drupeolis paucis inagnis composito adpressis. 



R. tenuis. Bell Salt, in Ann. Nat. Hist. xv. 305. 



R. affinis h, Rub. Germ. t. 3 b. 



^. ferox (Bell Salt. !) ; aculeis crebris uncinatis. 



Whole plant much resembling R. ccesius, from which it differs 

 by its stout equal and not straight prickles and total want of 

 hairs and setae on the barren stems, and the stronger prickles on 

 its panicle. From R. corylifolius it may be known by the strongly 

 hooked prickles on its petioles, almost constantly tern ate leaves, 

 and longer and adpressed sepals. 



South of England. July and August. 



8. R. corylifolius (Sm. !) ; caule decurvo vel procumbente teretius- 

 culo glabro, aculeis conicis rectis tenuibus, foliis quinatis planis 

 marginem versus undulatis subcoriaceis subtus mollibus canisque, 

 foliolo terminali rotundato-ovato cordatove, infimis subsessilibus 

 intermediis incumbentibus, panicula subcorymbosa, sepalis ovatis a 

 fructu reflexis. 



R. corylifolius, Sm. Fl. Br. 542 ; Eng. Bot. 827 ; Arrh. Rub. Suec.lQ; 



Bab. Man. 95. 

 R. affinis, Bab. Man. 93. 



Stems long, usually glabrous. Prickles moderate, those of 

 the petioles nearly straight. Lower branches of the panicle often 

 elongated and spreading. ^' Torus roundish-clavate." Fruit 

 sometimes rather hairy. 



Hedges and thickets, common. July and August. 



