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aculeis subrecuvis v. ereberrimis: turionibus purpureis, 
“"gubareuatis: foliolis supexioribus basi retusis v. cordatis v. 
dentatis v. densius-serratis? peduneulis paniculatis: ealycis 
subtus inermibus v. aculeolatis: petalis saepissime albis: 
fruelu majori v. mediocri v. vix pruinoso, 
9. Rub. Idaeo-caesius a. glandulis uniformibus sub- 
xotundis, aculeis mihoribus inaequalibus reetis, turionibus 
deflexis teretibus pruinosis pilosis, stipulis subulatis, foliis 
pinnato-quinalis ternatisque, foliolis ovatis rhombeis ob- 
longulisque leviter lobato-ineisis dentalis acuminatis planis, 
subtus concoloribus levissime' puberulis, pedunculis pauci- 
floro .corymbosis, laciniis calycinis oblongo-ovatis acumi- 
natis subtus pubescenübns froclus pruinosi ereclis, pelalis 
obovatis euneatis subinlegerrimis, seminibus oblongo- ova- 
tis inflexo- aculis. 
Variat: glandulis magis minusve pedieellatis hispidis 
sparsis v. erebris: aculeis saepius conferlissimis, purpuxeis 
v. albidis v. subeurvatis: turionibus arenatis v. procumben- 
tibus v, .valde elongatis: foliolis basi obtusis, aculis v- 
eordalis v. suhtus magis pubescenübus v. inferioribus in- 
terdum pedatis: pedunculis subunifloris v. corymbosist 
lacinis calyeinis-Jatioribus v. angustioribus: petalis (semoper' 
albis), retusis v. integerrimis. = 
b; (R. Bellardi W. proxim.): glandulis subbiformibus, 
aculeis curvatis, foliis ternatis, foliolis oblongo-ovatis ellip- 
tcisque,. subtus magis pubescentibus, peduncnlis corymbo- 
sis, petalis oblongo-obovatis, calyeibus subtus leviter tomen- 
tosis fructus subpruinosi adpressis. 
Variat: glandulis hispidis confertis v, sparsis: aculeis 
rectiusculis: turionibus dense pilosis, passim longissimis 
foliolis inferioribus evidenter bilobis: petalis obovatis v. in- 
terdum retusis, 
, 10. Rub. mixto.caesius @. glandulis biformibus, acı- 
leis minoribus inaequalibus rectis, turionibus procumbenti- 
