343 





[TAB, LXIX.] 



FIGURE AND DESCRIPTION OF A NEW SPE- 

 CIES OF CARDAMINE, FROM NORTH WEST 

 AMERICA. 



CARDAMINE ANGULATA. 



I. Cardamine angulata; foliis omnibus petiolatis tcrnatis 

 rarius quinato-pirinatis, foliolis angulato-dentatis angulis 

 mucronatis, caulinis ovatis lanceolatisve, radicalibus ro- 

 tundatis. (Tab. LXIX.) 



Cardamine angulata. Hook. Fl. Bar. Am. v. \. p. 44. 



Hab. Locis humidis ad flumen Columbia, in plaga occiden- 

 tali Americae Septentrionalis. Douglas, Scouler. 



Planta tola glaberrima. Hadix perennis, crassa, longe repens, 

 hic illic fibrosa. Caulis erectus, pedalis, etiam bipedalis, 

 erectus, simplex, teres, (siccitate) striatus, herbaceus, 

 nitidus, parce foliosus. Folia sublonge petiolata, ternata, 

 rarissime*subquinato-piunata5 glaberrima, membranacea: 

 foliolis radicalium subrotundis vel cordatis, caulinorum 

 ovatis vel lanceolatis inferne attenuatis, omnibus acumin- 

 atis, angulatis vel inciso-lobatis, angulls vel lobis denti- 

 busve obtusiuscuHs cum mucrone brevi molli, lateralibus 

 non raro brevi-petiolatis, alternis vel oppositis, terminali 

 plerumque majore. Flores corymbosi, pedunculati, ter- 

 minales et axillares, majusculi. Pedicelli graciles, 3-4 

 lineas longi, glabri. Fetala obovata, unguiculata, sepalis 

 plusquam duplo longiora, pallide rosea, iis sirailia C. 

 pratensis. 



The present plant will rank next to C. mmrophyUa of 

 Gmelin's Fl. Sibirica, v, 3. t. 62, a native of the Altaic range. 

 But that plant differs from ours in its truly pinnated leaves 

 of from 5-7 leaflets, which are smaller than those of C. ang\ir 

 iatay and distinctly and with considerable regularity serrated : 

 ^^ereas in our plant there are few and distant large angular 

 teeth or segments. It is a species that seems to be confined 

 to the lower part of the river Columbia. 

 '^AB. LXIX. Plant :—nat. size. 



— J T^^ 



,^..- 1^ ^ :>.w.b^ 



