= 303 



lunonibuij orcualls angulatls subpruinosis glnbresccnlihus, 

 sllpulis subulatis, folils digitalo-qulnalls, follolis obovalis 

 ovalisquc levitcr lobalo-incisis dcnlalls scnsim acumlnalis 

 subundulalis, subtus incanis brcviter pubcsccnllbus, pcdun- 

 culls paniculalis, laciniis calycinis ovatis acumlnalis tomcn- 

 tosis fructus glaberrimi reflexis, petalls subrolundo- ovatis 

 emarglnaJis ungue brevi, scminibus ovatis subinflcxo- 

 aculis. 



Variat: aculcis rcctis: turionibus procumbentibiis v. 

 I tereliusculis, apice saepius radicantlbus: foliolis oblongo- 

 ovatis V. inciso-dcnlalis v. subtus Icvitcr tomenlosis v. 

 fere concoloribus glabrescenllbus v. superioribus basi saepius 

 cordatis: pcdunculis corymbosis V. ihyrsoidcis: laciniis 

 calycinis ovatis cuspidatis fruclus incurvis v. subtus iner- 

 mibus V. aculeolatis: pctalis passim integcrrimis, dilule 

 roseis v. albis: fructu mediocri v. minori acldo: scminibus 

 ovatis oblique aculis. 



I Subspec. 5. v. R. caesio-fruticosus: glandulis biformi- 

 bus, aculeis majoribus aequalibus fere rectis, turionibus 

 arcuatis obtusangulis leviter pruinosis glabris, sllpulis lau- 

 ceolatis, foliis pedaio-quinatis, foliolis ob- et lale- ovatis 

 levissime lobatis acuminatis undulalis subtus fere concolo 

 ribus pubcscentibus, pedunculis composite - corymbosis, 

 laciniis calycinis ovatis cuspidalis subtus sublomenloso- 

 pubescentibus fructus glaberrimis crectis;, pclalls ovalis 

 subintegerrimis unguc breviusculo, scminibus objongulo« 



II ellipticis. 



F| Variat: glandulis oblongulis raris: aculcis mediocribus 



v. valde conferlis v. subcurvatis: turionibus leretiusculis v. 

 subpilosis : foliolis subtus glabriusculis v. superioribus cor- 

 datis v. inferloribus semper scssillbus: calycibus palenti- 

 bus, incurvis v. subtus ccbinatis: pelalis ellipticis integcr- 

 jrimis V. rctusis, incarnatis v. albis v. ungue brevi: fruclu 

 imcdiocii v. minori. 



