5. R. PLICATUS. 63 



uate terminal leaflet : the other now and probably originally 

 glabrous, and its leaflet obovate-acuminate and only slightly 

 cordate below. Both have well-marked stalks to the basal 

 leaflets. It is very doubtful if the former stem and leaf 

 really belong to Ji. nitidus. 



Godron says that the stem of R. nitidus is " dress^e 

 arquce seulement au sommet," but other authors describe it 

 as " arquee radicante," and in the Ruhi Germanici it is 

 stated that " arcu petit terram G — 10 pedem longitudine." 



I have received from INIr Baker as R. suberectus a speci- 

 men of what seems to be the true R. nitidus. It resem- 

 bles R. 2^licatus in most respects, but has slightly obovate 

 acuminate terminal leaflets which are rather hairy beneath, 

 and a slightly divided panicle in one case and a simple 

 raceme in another. He gathered it at Thirsk, in N.E. 

 Yorkshire, in 1851. Other specimens, from the Isle of 

 AiTan (Scotland), Appleby Road at Twycross, Leicester- 

 shire, and falls of the Mynach, in Cardiganshii-e, are appa- 

 rently also the true R. nitidus. 



A remarkable form which I think belongs to R. plicatus 

 is the R. fastifjiatus of my Synopsis. It had quite lost the 

 suberect habit, its stems being long and procumbent. It 

 grew in deep shade, and was probably modified thereby. 

 The prickles on the stem are more compressed at the base. 

 The lower leaflets of its very large leaves are nearly sessile 

 and overlap the intermediate leaflets. The R. fastigiatus 

 (W. and N.) appears to be another prostrate form of R. 

 plicatus. Its prickles, although very large, are exactly 

 like those of Ji. jjlicatus. Its lower leaflets do not overlap 

 the intermediate pair. A specimen gathered near Keswick 

 by the Rev. F. J. A. Hort agrees very exactly with this, 

 as do also Nos. 1 and 2 of Wirtgen's Herb. Rub. rhenan. 

 (R. fastif/iatus (W. and IST.) forma 1 et 2), and a specimen 

 named R. plicatus? (vel R. fastigiatus) by Lange which was 



