770 REPORT OF STATE GEOLOGIST. 



BURSA Weber. 



i 



B. Bursa-pastoris (L.) Britton. Shepherd's Purse. 



(Capsella Bursa pastoris Moench.) 



A very common form throughout the State, chiefly in waste 

 ground and about dwellings. In some cases a very annoying 

 weed in lawns. 



It begins to bloom very early, about the first of March, and 

 continues until the most severe frosts. In mild winters it may 

 be found in flower in December and January in sheltered places. 

 Exceeding variable. 



Reported from almost every county in the State as "too com- 

 mon.", 



CAMELINA Crantz. 



C. sativa (L.) Crantz. False Flax. 



Not commonly distributed. Reported only from five counties: 

 Clark (Baird and Taylor); Jefferson (J. M. Coulter); Hamilton 

 (Wilson); Fayette (Hessler); Tippecanoe (Hussey). 



It may be expected in fields where flax has been cultivated. 



DRABA L. 



D. verna L. Vernal Whitlow Grass. 



One of our smallest flowering plants, occurring in fields and 

 by roadsides in counties south of the center of the State. 



It is a winter annual and flowers from February to May. 



Jefferson (Coulter); Clark (Baird and Taylor); Putnam (Un- 

 derwood); Hamilton (Wilson); Marion (Blatchley). 



D. Carolinian A Walt. Carolina Whitlow Grass. 



Also confined to the southern half of the State, excepting one 

 station. 



It blossoms in the first warm days late in February or early in 

 March, and its seeds are ripened by April. 



It rarely exceeds three inches in height, and, as Professor 

 Blatchley says, "succeeds in the struggle for existence by being 

 first upon the scene of action." It is usually quite abundant in 

 the localities in which it is found. 



Vigo (Blatchley); Daviess (Clements); Putnam (Underwood); 

 Hamilton (Wilson); Tippecanoe (Barnes); Lake (Hill). 



