178 Mr. Woods on the Brifish Species of Bosa. 



Bosa riiheUa is an interesting species, as it is so exactly between 

 the families of Jv. alpina and R. tipinosissima, that it might almost 

 indifferently be referred to one or the other. The aculei are few 

 and frequently wanting, as in the former tribe ; the setae, though 

 not uniformly deciduous, are yet very apt to fall off; and the 

 fruit, though not properly urceolate, is distinguished from that of 

 R. spi/iosissintd and its affinities by a very evident neck. Of the 

 family of R. alpina we have no British Rose; it includes besides 

 that species R. pendulina, R. lagcnaria, and R. pyrenaica. 



Mr. E. Forster has a plant raised from seeds which were sent 

 from Ireland for R. hibcrnica, and which, if not a distinct species, 

 must be referred to R. rubella. The receptacle during the inflo- 

 rescence is very long, and the leaves of the calyx are furnished 

 with small offsets. The prickles are extremely slender, and more 

 curved than is usual in the tribe, and the leaflets arc narrower 

 than their general form in this and the following species. There 

 is a specimen closely resembling it in the Banksian Herbarium, 

 where it is referred to R. pimpineUifoUa, and marked Hort. Pit- 

 cairn. 1781. 



3. Rosa spinosissima. 



Tl. ebracteata, caulibus setigeris, receptaculis globosis, serraturis 

 foliolorum simplicibus, aculeis confertis valde inaequalibus. 



11. spinosissima. Linn. Sp. PL i. 705. Fl. Brit. ii. 537. Eng. 

 Bot. iii. t. 187. Willd. ii. IO67. Roth's Fl. Germ. i. 217. ii. 555. 



R. pimpincllifolia /3. Lam. et Dec. Fl. Fr. iv. 438. 



R. pumila spinosissima, foliis pimpinellfe glabris flore albo. Rail 



Synop. 455. 



Fiutex erectus, in apricis bipedalis, quandoque in umbrosis multo elatior. Rami breves, 

 interne fusci, aculeis reclinatis vel horizontaliter patentibus, rectiusculis, confertis, valde 

 inaequalibus, tandem in setas immutatis, muniti. Peiioli nunc glabri, ssepius glandu- 

 losi, interdum aculeis rectis instructi, acerosi, rarius pilosi. Stipules lineares, glandu- 

 loso-serratse, glabras, aequales. /"oZioZa 7-11, folioluni inipar, et paria duo supeiioia 

 lerupiis majora, inflorescentiam versus subpauciora, simpliciter serrata, hie illic ser- 



ratura 



