CRUCIFI'RAl 



Vol. II. 



7. Cardamine bellidifolia I,. Alpine Cress. 

 iMg. jc)8y. 



Cardainitie bellidifolia L. Sp. PI. 654. 1753. 



Perennial, tufted, glabrous, 2-5' high, with fibrous roots. 

 Lower leaves long-petioled, ovate, obtuse, the blades 4"-8" 

 long, 3"-4" broad, abruptly contracted into the petiole, entire, 

 or with a few rounded teeth; upper leaves similar, shorter- 

 petioled; flowers 1-5, white; petals about twice the length of 

 tlie calyx; pods erect, linear, T-iJ' long, l" wide, narrowed 

 at each end; pedicels i"-3" long; style stout, less than 1" long. 



Alpine summits of the White Mountains, N. H. ; Mt. Katahdin, 

 Me.; Greenland and arctic America; the Canadian Rocky Moun- 

 tains; California. Also in Europe and Asia. July. 



8. Cardamine Douglassii (Torr.) Britton. 

 Purple Cress. Fig. 2090. 



Arabis rhoinboidea var. purpurea Torr. Am, Journ. 



Sci. 4 : 66. 1822. 

 Arabis Douglassii Torr. ; T. & G Fl. N. A. i : 83. 



As synonym. 1838. 

 Cardamine Douglassii Britton, Trans. N. Y. Acad. 



Sci. 9: 8. 18S9. 

 C. purpurea Britton, in Britt. & Brown, 111. Fl. 2 ; 



139. 1897. 



Glabrous or somewhat pubescent, generally 

 slender, 6'-is' high, perennial by tuberiferous 

 rootstocks. Basal leaves slender-petioled, about 

 i' broad, ovale or orbicular, cordate, thickish; 

 lower stem-leaves similar, but short-petioled, the 

 upper sessile, mostly close together, dentate or 

 entire; pedicels 4"-i2" long; flowers purple, 

 showy, 5''-io" broad; pods nearly erect, l' long, 

 i" broad, pointed at each end; pedicels 4"-i2" 

 long; style 2" long. 



In cold springy places, Quebec and arctic Amer- 

 ica to the Canadian Rocky Mountains, south to 

 Maryland, Kentucky and Wisconsin. Blooming two 

 or three weeks earlier than the next, and more 



abundant northward. Mountain water-cress. April- 

 May. 



9. Cardamine bulbosa (Schreb.) B.S.P. 

 Bulbous Cress. Fig. 2091. 



Muhk Trans. Am. Phil. Soc. 

 1821. 



Arabis bulbosa Schreb. ; 



3: 174. 1793- 

 Cardamine rhomboidea DC. Syst. Veg. 2: 246. 

 Cardamine bulbosa B.S.P. Prek Cat. N. Y. 4. 1888. 



Perennial, glabrous, erect from a tuberous base, 

 with tuber-bearing rotstocks, simple or sparingly 

 branched above, 6'-2 high. Basal leaves oval, or 

 nearly orbicular, I'-ii' long, sometimes cordate, 

 angled or entire, long-petioled; stem-leaves sessile 

 or the lower petioled, mostly distant, oblong or 

 lanceolate, dentate or entire, i'-2' long; pedicels 

 4"-i2" long; flowers white, s"-7" broad; petals 

 three or four times the length of the calyx; pods 

 i' long, erect. linear-lanceolate, narrowed at each 

 end; style i"-2" long; stigma prominent; seeds 

 short-oval. 



In wet meadows and thickets. Nova Scotia(?); 

 Vermont to southern Ontario and Minnesota, south 

 to Florida and Texas. Ascends to 2000 ft. in Vir- 

 ginia. Spring-cress. April-June. 



