2l8 UNIVERSITY OF MISSOURI STUDIES [3*^0 



902. L. inflata L. Indian tobacco. Common lobelia. 

 Common in wild grounds and open thickets. 

 Labrador to the Northwest Territory; Georgia to 



Arkansas and Nebraska. 



Family 107. COMPOSITAE Adans. Thistle family, 



391. VERNONIA* Schreb. Ironweed. 



903. V. crinita Raf. [V. Arkamana DC.]. Great iron- 

 weed. 



Roadsides and fields; local and rare. 

 Missouri and Kansas to Texas. 



904. V. Baldwinii Torr. Baldwin's ironweed. 

 Fields and roadsides; very common and variable. 

 Missouri and Nebraska to Kansas and Texas. 



905. V. Duggariana Daniels. Nov. spec. 



Plant I-IJ4 metres in height, finely tomentose; leaves num- 

 erous, lanceolate to linear, long acuminate at the apex, some- 

 what less so at the base; upper surfaces smooth, under sur- 

 faces tomentulose; veins prominent underneath; serrations 

 rather distant, seldom deep, mostly lacking at the basal 

 acuminations, and extremely slight at the apices; peduncles 

 slightly thickened upward; corymbs pyramidal, less ample 

 than in V. Baldwmii Torr.; heads globose-campanulate, 

 somewhat smaller than in V. Baldwmii Torx.; ovate bracts 

 purplish, the attenuate tips reflexed; pappus reddish purple. 



Common in fields about Columbia; type specimen gath- 

 ered in the wild lot north of Pansy Hill, July, 1904. It is 

 the earliest flowering ironweed about Columbia, the achenes 

 being for the most part matured before the other species 

 begin to flower. Named after Dr. B. M. Duggar. 



906. V. flavipapposa Daniels. Nov. spec. 



Stems low, seldom exceeding one metre in height, tomen- 

 tose with soft brownish tomentum; leaves ovate-lanceolate 

 or elliptic, acuminate, serrations seldom deep and somewhat 



*See Appendix A for a synopsis of the North American species of 

 Vernonia occurring north of Mexico. 



