1 56 F. w, c. Areschoug. 



Oomparison witli this material shows, that K. cordifolius differs from R. 

 villicaulis, by the coiisiderably smaller, raore contracted and raore contiguous 

 infiorescencc, the lower branches of which are rather short, the peduncles short 

 and wanting the stalked glandules; the short pointed sepals, the broader, entire 

 petals, whose edges, towards the base, at last, become turned down; the consi- 

 derably longer filaments, the sharply, finely, and almost doubly serrate leaflets, 

 which are much smaller; also, the leaves on the turiones being more abruptly cuspi- 

 date, and generally broader above the middle. Besides, in this species the 

 leaves on the ander side are palér greeu, and less hairy than on the R. 

 villicaulis. 



There are many forms growing in Denmark which should be referred to 

 fche same species as this form, but I have not seen any that completely agrees 

 with it. The form among thcm, that comes nearest to ours, is called, by 

 Fogke, R. rhamnifolius, b) K. dumosus Lefvre. It is distinguished from the 

 swedish form, by a weaker armature, smoother flowering shoots, a smaller and 

 fewer-flowered inflorescence; the leaves, on the flowering shoots, being longer 

 stalked; and the terminal leaflet on the leaves of the turiones being long 

 stalked, cordate, and evenly acuminate. As already stated, however, among 

 the North German forms, it approaches R. Münteri the most nearly; although 

 il recedes somewhat from this form, by the much richer and strenger 

 armature, also the terminal leaHet, on the leaves of the turiones, being much 

 shorter-stalked, broader and more abruptly pointed. 



21. R. relatus F. Auesch. ad interim; turionibus angulatis, ad basin 

 obtusangülis, glabris vel versus apicem sparse pilosis & glandulis subsessilibus 

 m nnit is, aculeis sparsis, a basi compressa rectis vel subcurvatis, subulatis arma- 

 tis; foliis 5-nato-digitatis, foliolis breviter petiolatis, supra la>te viridibus, subtus 

 tomentosis, subcanescentibus, argute & subtiliter, fere duplicate serratis, foliolo 

 terminali cordato-ovato, hinge acuminato; petiolis aculeis falcatis munitis; ramis 

 floriferis glabrescentibus, eglandulosis, aculeis sparsis, validis. curvatis munitis; 

 foliis, Mumms exceptis, 5-nato-digitatis, foliolis omnibus subduplicato-serratis, 

 longe acuminatis, terminali cordato-ovato; inflorescentia subsimplici, racemosa, 

 aphylla, pedunculis inferioribus cymas 3-floras sa?pe gerentibus, aculeis paucis, 

 eur\atis iniiniia; sepahs late ovatis, acutis, extus cinerascentibus, in fructu reflexis; 

 petalis rotundato-ovatis^orbicularibus, abrupte unguiculatis, ad basin denique 

 marginibus sa?pe reflexis; filamentis Btylos longo superantibus ; germinibus 

 glabris; receptaculo piloso. 



