122 
( Y 
2. Barbarea stricta Andrz. Erect- 
fruited Winter Cress. (Fig. 1710.) 
Barbarea stricta Andrz. in Bess. Enum. Pl. 
Volh. 72. 1821. 
Barbarea vulgaris var. stricta A. Gray, Man. 
Ed. 2, 35. 1856. 
Similar to the preceding species, about 
equally tall. Lateral segments of the leaves 
comparatively larger; pods obtusely or ob- 
scurely 4-angled, about 1/ long, erect and ap- 
pressed against the rachis of the raceme on 
erect or ascending slender pedicels. 
In fields and waste places, Quebec to Minne- 
sota and the Northwest Territory, south to 
Florida and Nebraska. The plant is certainly 
naturalized from Europe in the East, but is re- 
ported as indigenous in the Northwest. It is 
very abundant in northern Europe and Asia. 
April-June. 
Leaves shining above. 
CRUCIFERAE. 
{Vor II. 
Yellow Rocket or Cress. (Fig. 1709.) 
Erysimum Barbarea 1,. Sp. Pl. 660. 1753. 
Barbarea vulgaris R. Br. in Ait. Hort. Kew. Ed. 
2,4: 109. 1812. 
Barbarea vulgaris var. arcuata A. Gray, Man. 
Ed. 2, 35. 1856 
Barbarea Barbarea MacM. Met. Minn. 259. 1892. 
Tufted, stems erect, 1°-2° high. Lower 
leaves petioled, 2/-5’ long, pinnatifid; ter- 
minal division much larger than the 1-4 
pairs of lateral ones, all oval or obovate, 
repand-toothed or sometimes entire; upper 
leaves sessile or nearly so, sometimes clasp- 
ing; flowers bright yellow, 3/’-4’’ broad; 
pods spreading or ascending, about 1/ long, 
obscurely 4-angled; pedicels about 2’ long. 
In fields and waste places, Labrador to south- 
ern New York and Virginia and locally in the 
interior. Also on the Pacific coast. 
from Europe. 
April-June. 
Rocket Cress. 
Nattralized 
Leaves thickish, shining above. 
Also called Bitter, Winter or 
3. Barbarea praécox (J. E. Smith) 
R. Br. Early Winter or Belle 
Isle Cress. (Fig. 1711.) 
Erysimum praccox J. E. Smith, Fl. Brit. 2: 707. 
1800. 
Barbarea praecox R. Br. in Ait. Hort. Kew. Ed. 
2,4: 109. 1812. 
Closely resembles the last species. Divi- 
sions of the leaves more numerous (4-8 
pairs); pods sharply 4-sided, slightly com- 
pressed, 114/-3’ long, borne on stout pedicels. 
In waste places, southern New York, Penn- 
sylvania and southward. Adventive from Eu- 
rope. Sometimes cultivated for salad. Re- 
ferred by Hooker and Thomson (Journ. Linn. 
Soc. 5: 139) to a variety of &. vulgaris and so 
regarded by Bentham and other English botan- 
ists, but its characters appear to be constant. 
In the Southern States called Scurvy-grass. 
April-June. 
