204 MR. J. G. baker's MONOGEAPH of BRITISH ROSES. 



long, always glanduloso-setose and aciculate ; the calyx-tube ovato- 

 urceolate, naked or slightly glanduloso-setose ; the sepals quite 

 simple, 5-8 lines long, slightly leafy at the point, thinly glandular 

 on the back. Corolla cream-coloured, or often variegated with 

 red, 12-18 lines across when expanded ; the styles densely villose. 

 Fruit bright red, changing colour in England early in September, 

 usually but not invariably drooping, roundish or short ovato- 

 urceolate, 6-8 lines long ; the sepals fully persistent. Disk none. 

 This is a plant well-known in botanic gardens, and evidently 

 the same as the Jurassic plant which I have from Dr. Rapin, and 

 as the Istrian plant with which Koch identified it. It is very like 

 spinosissima in habit and prickles ; but the fruit is different, the 

 peduncles are always aciculate, the sepals are glandular on the 

 back, and the flowers not always solitary. li. stricta of Muhlen- 

 berg (Lindl. Mon. p.42,t. 9— a plant attributed to Pennsylvania, 

 no doubt in error, as it has never been gathered in recent times), 

 and i2. CandoUeana, Thory, in Eos. Eed. 4to, vol. i. t. 32, do not 

 appear to differ from it by any tangible characters ; and the Hima- 

 layan -B. Webbiana, Wall. Eoyle's lUust. i. p. 42, is very nearly, if 

 not absolutely, identical with it. There are specimens in several 

 herbaria labelled as having been collected by Winch on the sands 

 of the seashore south of Shields Law on the Durham side of the 

 Tyne ; but Winch certainly did not know it clearly, for a plant 

 collected by Mr. Hogg near Hartlepool, which he called rubella, is 

 only ordinary spinosissima^ and it is probable that some confusion 

 has arisen. I have not seen specimens complete enough to be 

 able to form a clear opinion as to what are the relations to this 

 of _Z2. reversa, Waldst. and Kit. PL Ear. Hung. p. 264; but 

 the difterence, if any, must be very slight. Dr. Thomson's exten- 

 sive suite of specimens from the Himalayas appear to run this by 

 gradual stages into spinosissima. My specimens from the Alps 

 are too few to show fairly what may be the case there; and, on 

 the other hand, as will be seen, it comes exceedingly near to some 

 of the varieties of the next, 



3. R. INVOLUTA, Smith, Frutex erectus ramis plerisque brevibus, acu- 

 leis subulatis subrectis ad aciculos copiosos sensim transeuntibus, 

 foliolis mediocribus plerisque duplicato-serratis plus minus pubescent- 

 ibus infra sa^pe leviter glandulosis, floribus 1 vel paucis, peduuculis 

 dense acicvdatis et glanduloso-setosis, sepalis ascendentibus persistent- 

 ibus dorso dense glandulosis, majoribus pinnatis vel rare subsiuipli- 

 cibus, fructibus serotinis erectis subrotuudatis, disco nullo. 



