bursa. CRUCIFER.E. 61 



HUTCHINSIA. 



B. campjsstkis L. Sp. ii, 666, Annual or sometimes biennial, smooth, 2-3 

 feet high : lower leaves more or less glaucous pinnately divided with a large 

 terminal lobe, the upper leaves oblong or lanceolate with a broad clasping 

 auriculate base : flowers 3-4 lines long: pods nearly terete 2 inches long or 

 more, 2 lines wide, ascending on spreading pedicels; the stout beak 8-10 

 lines long. Cultivated fields, etc., 



B. nigra Koch in Roehl. Deutschl. Fl. ed. 3, iv, 713. Glabrous or with 

 some scattered spreading hairs, annual, branching. )£-12 feet high: leaves 

 all petioled, the lower lyrate with the terminal segment very large and 

 deeply lobed ; upper leaves lobed or entire : petals 3-4 lines long twice the 

 length of the yellowish sepals: pods closely appressed, 4 angled, 6-9 lines 

 long, sharply beaked with the long style ; seeds dark brown. In cultivated 

 fields. Introduced from Europe. 



Tribe VII Idpidinece DC. Pods short, 2-celled. strongly ob- 

 compressed] dehiscent. Cotyledons accumbent or incumbent. Pubes- 

 cence wholly simple. 



28 BURSA Weber in Wigg. Fl. Hols. 27, (1780). 



Low annual with oblong or oblanceolate leaves, small white 

 flowers in elongated racemes, and euneate-obcordate pods. Sep- 

 als ovate, obtuse, thin-margined, not saccate at base. Petals 

 small, spatulate. Stamens free and unappendaged. Style almost 

 none. Pods obcordate, the valves carinate, strongly compress- 

 ed contrary to the narrow, thin and nerveless partition. Coty- 

 ledons incumbent. 



B. Bursa-pastoris Weber I. c. More or less hirsute at base, otherwise 

 glabrous: stems 6-18 inches high, branching: radical leaves mostly runciu- 

 ate-pinnatifid, 1-6 inches long; cauline lanceolate, auricled at base, toothed 

 or entire: pods cuneate-triangular or truncate-emarginate above, 1-2 lines 

 long and broad : pedicels widely spreading : seeds numerous. Common 

 everywhere. Introduced from Europe. 



29 HUTCHINSIA R. Br. Hort. Kew iv, 85. 



Small annuals with pinnatifid leaves and small white flowers 

 in terminal racemes. Sepals ovate or oblong, obtuse, not saccate 

 at base, at length spreading. Petals small. Stamens free and 

 unappendaged. Stigma sessile. Pods ovate or elliptical. Valves 

 membranaceous, but little compressed contrary to the parti- 

 tion, somewhat tumid, slightly carinate, wingless : cells many- 

 seeded. Cotyledons incumbent. 



H. procumbeiis Desv. Jour. Bot. iii, 168. Capsella divaricata W. Low, 

 weak and spreading, very minutely stellate-pubescent or glabrous through- 

 out: leaves thin, small, spatulate or lanceolate, the lower commonly with a 

 few blunt teeth or more or less deeply pinnattfid : stems nearly filiform, 

 flexuous: flowers minute: sepals ovate-elliptic, obtuse, thin-margined, 

 about equaled by the narrow white petals : pods elliptic-oblong 1-2 lines 

 long: entire at the apex. In moist saline places, eastern Oregon and 

 Washington to California, Brit. Columbia and Wyoming. 



30 CORONOPTJS Ruellius. 



Diffuse prostrate heavy-scented annuals with pinnatifid leaves 

 and small greenish flowers. Sepals equal at base, oval, spreading, 

 often fugacious. Stamens free and unappendaged, all (5 present, 



