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D. glabellum, DC. (Eesembles D, Marilandica and D. 

 paniculatnm) — Eussell county (Dr. Neisler). 



D. humifusum, Beck. Dry sandy soil in Russell (Dr. 

 Neisler) and on Alpine mountain, Talladega (Dr. Mohr). 



D. canescens, DC. Moist places in south, middle and 

 north Alabama — July, August — Mobile, Talladega, Franklin 

 (Dr. Mohr), Lee, Macon (Mell) counties. 



D. cuspidatum, Torr. and Gray. Sliarp i^ointcd tick tre- 

 foil. Middle and north Alabama — Lee, Macon (Mell), Rus- 

 sell (Dr. Neisler), Calhoun (Dr. Mohr) counties, extending 

 into Tennessee (Killebrew) — August. 



D. laevigatum, DC. Middle and northeast Alabama — 

 August — Russell (Dr. Neisler), Talladega (Dr. Mohr) coun- 

 ties. 



D. viridiflorum, Beck. In dry rich soil in middle Ala- 

 bama. Russell (Dr. Neisler), Lee (Mell), Montgomery (Dr. 

 Mohr) counties. 



D. Dillenii, Darl. 1\\ open woods from south Alabama 

 to Tennessee. Mobile, Baldwin (Dr. Mohr), Lee (Mell), Ten- 

 nessee (Killebrew) — August. 



D. paniculatum, DC. Smooth tick trefoil. In shady 

 places throughout Alabama — Mobile, Talladega (Dr. Mohr), 

 Clay (Mell), extending into Tennessee (Killebrew) — August. 



D. strictum, DC. Stiff tick trefoil. Pine barrens, from 

 south to north Alabama — Mobile (Dr. Mohr), Russell (Dr. 

 Neisler), Montgomery, Lee (Mell), extending into Tennessee 

 (Killebrew) — July, September. 



D. Canadense, DC. In north Alabama (Dr. Smith), 

 extending into Tennessee (Killebrew). 



D. rigidum, DC. Montgomery, Talladega, Calhoun 

 (Dr. Mohr) — August. 



D. ciliare, DC. Dry hills and sandy fields in most sec- 

 tions of the State — August — Mobile, Talladega (Dr. Mohr), 

 Montgomery, Macon (Mell). 



D. Marilandicum, Boott. Dry open woods soil in north- 

 east Alabama — Talladega, Calhoun (Dr. Mohr), Clay, Ran- 

 dolph (Mell) counties. August. 



