June, 1017] The Brassicacece of Ohio 319 



17. Sophia Adans. Tansy-mustard. 

 x\nnual canescent or pubescent herbs with finely pinnatified 

 leaves and small yellow flowers in elongating racemes. Siliques 

 narrow, pedicelled. Seeds very smal], in 1 or 2 rows in each 

 cavity, wingless. 



1. Canescent, pods horizontal. 5. pinnala. 

 1. Green, pods ascending. 5. incisa. 



1. Sophia pinnata (Walt.) Howell. Pinnate Tansy-mustard. 

 Stems slender, erect, branching, canescent, 8-24 in. tall; leaves 

 finely 2-pinnatifid, 2-4 in. long; flowers very small, yellowish; 

 pods erect, shorter than the horizontal pedicels; seeds in 2 rows 

 in each cavity. 



Indigenous in dry situations. Hamilton, Jackson, Miami, 

 Montgomery, Ottawa. 



2. Sophia incisa (Engelm.) Greene. Western Tansy- 

 mustard, Resembling S. pinnata, but not canescent. Leaves 

 pinnatifid; pods ascending, about the length of the pedicels; 

 seeds in 1 row in each cavity. 



An indigenous western polymorphous species. Erie, Miami, 

 Portage. 



18. Cheirinia Link. Cheirinia. 

 Annual and biennial erect branching herbs, pubescent with 

 2-parted hairs, w4th lanceolate entire or toothed leaves, and 

 yellow flowers in racemes. vSiliques linear, 4-sided. Seeds 

 in 1 row in each cavity, wingless. 



1. Slender, pubescent; flowers small, pods short and spreading. C. cheiranthoides. 



1. Stout, pubescent, pods long and spreading. 2. 



2. Leaves repand or lobed, flowers medium. C. repanda. 

 2. Leaves lanceolate, dentate, flowers large. C. aspera. 



1. Cheirinia cheiranthoides (L.) Link. Wormseed Mustard. 

 Stems erect, roughish, branching, |-2 ft. high; leaves lanceolate, 

 usually entire, 1-4 in. long; flowers yellow; pods slender, erect, 

 on diverging pedicels. 



A biennial, on banks of streams or in waste places, intro- 

 duced from Europe. Hamilton, Lake, Lucas, Portage. 



2. Cheirinia repanda (L.) Link. Repand Cheirinia. Stem 

 pubescent, 1 ft. high, m.uch branched; leaves repand-denticulate, 

 lanceolate, lower ones sometimes lobed, 1-3^ in. long; flowers 

 larger than in C. cheiranthoides; pods long, spreading, on 

 stout pedicels. 



Annual in waste ground, adventive from Europe. Erie, 

 Logan. 



