297 



horizontalibus v. nulantibus v. leieliusculls: ramls llori- 

 feris non raro brevibus fasligialls: stlpulis valde angustls: 

 foliolis Omnibus ovalls v. ellipliclsque, subundulalis, gla- 

 bris V. superioribus cordalis: pedunculis pauciflorls: caly- 

 cibus saepissime inermibus v. lacinlis lato-lanceolatis 

 acuminalis v. incurvis: petalis albis, rarius rubellis: fructu 

 alropurpureo, saporis aclduli-dulcis v. amaricantis: semini- 

 bus subreniformlbus. 



Spec. 2. Rithus candlcans Rb. (frulicosus W. et N.), 

 glandulis uniformibus oblongis, aculeis majoribus aequali- 

 bus rectlusculls, iurionibus arcuatis angulatis glabrescenti- 

 bus epruinosls, stipulis subulalis, foliis digitale- qulnalls 

 foliolis obovalis lale-ovalisque Integris dentatis acuminatis 

 subiindulatis, subtus albo-tomenlosis, pedunculis elongato- 

 paniculatis, lacinlis calycinis ovalis cuspidatis tomenlosis 

 fruclus glaberrimi reflexis, petalis ovatis integerrlnriis un- 

 gue brevi, semlnibus ovatis acutis. 



Varlat: turionibus valde elongatis (20 pedalib.) stlpulis 

 anguslo-lanceolatis: foliolis elliplicis v. laliorlbus v. an- 

 guslioribus y= subtus Incanis leviter tomenlosis, superiori- 

 bus retusis v. cordatis, inferioribus petiolulalis: pedimculis 

 racemosis: calycibus rarissime subaculeolalis: petalis 

 elllpticis, roseis v. incarnatls, raro albis: fructu minori 

 acldo V. medlocrl subdulci. 



/3. aculeis recurvis, turionibus glabris, foliolis oblon- 

 gulo- obovalis undulalis subtus albldis, panicula abbreviala. 



Varial: foliolis superlor. ad basin obtusis v. retusis. 



Spec. 3. Ruhjis villosus: glandulis biformibus, aculeis 

 majoribus aequalibus rectlusculls , turionibus subprocuuj- 

 bentibus oblusangullssubvlllosis epruinosls, stlpulis subulalis, 

 foliis digitato-quinatis, foliolis obovatis subovatisque inte- 

 grls serratis acuminatis subundulatls, subtus incanis dense 

 villosulis, pedunculis paniculatis, lacinlis calycinis ovatis 

 cuspidatis subtus subtomenloso-villoslssimis fructus gla- 



