343 



[TAB. LXIX.] 



FIGURE AND DESCRIPTION OF A NEW SPE- 

 CIES OF CARDAMINE, FROM NORTH WEST 

 AMERICA. 



CARDAMINE ANGULATA. 

 1. Cardamine angulata ; foliis omnibus petiolatis ternatis 

 rarius quinato-pinnatis, foliolis angulato-dentatis angulis 

 mucronatis, caulinis ovatis lanceolatisve, radicalibus ro- 

 tundatis. (Tab. LXIX.) 

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

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



tali Americae Septentrionalis. Douglas. Scolder. 

 Planta tota glaberrima. Radix perennis, crassa, longe repens, 

 hie illic fibrosa. Caidis erectus, pedalis, etiam bipedalis, 

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

 nitidus, parce foliosus. Folia sublonge petiolata, ternata, 

 rarissime subquinato-pinnata, glaberrima, membranacea : 

 foliolis radicalium subrotundis vel cordatis, caulinorum 

 ovatis vel lanceolatis inferne attenuatis, omnibus acumin- 

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

 busve obtusiusculis 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. Petala obovata, unguiculata, sepalis 

 plusquam duplo longiora, pallide rosea, iis similia C. 

 pratensis. 



The present plant will rank next to C. macrophylla 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. angu- 

 lata, and distinctly and with considerable regularity serrated : 

 whereas 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. 



Tab. LXIX. Plant : — nat. size. 



