THISTLE FAMILY. 787 



Alabama: Mouutain region to Lower hills. Rich, open woodlands. Cnllmm 

 County, SOO feet. Tuscaloosa County (A'. J. Sviith). Flowers lilac; Ajjril, May. 

 Not coiniuon. Perennial. 



Type locality : " Hab. in Canada, Pennsylvania et uiontibus Caroiinae." 



Herb. Geol. Snrv. Herb. Mohr. 



Erigeron philadelphicus L. Sp. PI. 2 : 863. 1753. Philadklphia Daisy Fleabane. 



Gray. Man. ed. 6. 26t). Chap. Fl. 206. Gray. Svn. Fl. N. A. 1. pt. 2 : 217. Wats. Bot. 

 Calif. 1 : 321. Coulter, Contr. Nat. Herb. 2 : 198. 



Boreal region to Louisianianai-ea. (Ontario and Quebec north to the arctic circle, 

 south to the eastern Gulf region, west to Oregon and California. 



Alabama: Over the State. Borders of woods and fields. Mobile County, abun- 

 dant. Flowers white, more or less tinged with purple; April, May. Of late years 

 becoming a troublesome wayside weed, infesting lawns and waste grounds. Bien- 

 nial. 



Economic uses: The herb, under name of '"Erigeron," is used medicinally, as are 

 likewise E. canadeufiis, E. anmiiis, and E. ramosiis. 



Type locality : " Hab. in Canada. Kalm.'' 



Herb. Mohr. 



Erigeron quercifolius Lam. Tabl. Encycl. 3 : 2.58, .. CSJ,f. 4. 1823. 



Southern Daisy Flkaisaxe. 



Erifjeron phUadelphicus Michx. Fl. Bor. Am. 2 : 123. 1803. Not L. Ell. Sk. 2 : 396. 



Gray. Syn. IT. N. A. 1, pt. 2 :217. Coulter, Contr. Nat. Herb. 2 : 198. 



Louisianiau area. South Carolina to Florida and Texas. 



Al.\hama: Coast plain. Low grassy banks and borders of woods. Mobile 

 Couuty. Flowers white to bluish; April. Common. Biennial. 



With the last an aggressive weed in grass plats, meadows, etc. 



Type locality not given. 



Herb. Geol. Surv. Herb. Mohr. 



Engeroii vernus (L.) Torr. & Gray, Fl. N. A. 2 : 176. 1841. Vernal Erigeron. 



Aster verviia L. Sp. PI. 2 : 876. 17.53. 



ErUjeron nndlcaule Michx. Fl. Bor. Am. 2 : 124. 1803. 



Ell.' 3k. 2 : 392. Gray, Man. ed. 6, 266. Chap. Fl. 206 ; ed. 3, 226. 



Carolinian and Louisianiau areas. Virginia along the coast to North Carolina, 

 Florida, and eastern Lonisian.i. 



Alabama: Coast plain. Flat damp pine barrens. Flowers white; /priltoJune. 

 Frequent. Perennial. 



Type locality : "Hab. in Virginia." 



Herb. Geol. Surv. Herb. Mohr. 



LEPTILON Raf. Am. Monthly Mag. 2 : 268. 1818. 



(Ceanotcs Raf. Fl. Tell. 2 : 50. 1836.) 



Annual or biennial herbs. Asiatic and North American species, about 20. 



Leptilon canadense (L.) Britton in Britt. and Br. 111. Fl. 3 : 391. 1898. 



Horseweed. Canada Fleabane. 



Eriijeion canadensis L. Sp. PI. 2 : 863. 1753. 



Gray, Man. ed. 6, 265. EU. Sk. 2:397. Chap. FL 206. Gray, Syn. Fl. N. A. 1, pt. 

 2: 221. 

 Coulter, Contr. Nat. Herb. 2 : 198. Wats. Bot. Calif. 2 : 331. 



Europe. Northern Asia. North America, throughout the continent. 



Alabama: Over the State. Abundant weed. Flowers July to October. 



Type locality : " Hab. in Canada, Virginia, nunc in Europa australi." 



Herb. Geol. Surv. Herb. Mohr. 



Leptilon divaricatum (Michx.) Raf. Fl. Tell. 2 : 265. 1818:. 



Erir/eron divaricatus Michx. FL Bor. Am. 2 : 123. 1803. 



Gray, Man. ed. 6, 265. Chap. Fl. ed. 3, 226. Gray, Svn. Fl. N. A. 1, pt.2:221. 

 Coulter. Contr. Nat. Herb. 2 : 198. 



Alleghcnian and Carolinian areas. Indiana. Illinois to Minnesota, Nebraska, south 

 to Colorado, Arkansas, Texas, Tennessee. 



Alabama: Tennessee Valley. Pastures, waste places, meadows. Franklin County, 

 Russellville. Lawrence County, Moulton. Flowers .June to August. Adventive 

 from the west, spreading and becoming a pernicious weed injurious to grass lands. 

 Annual. 



Type locality: "Hab. in pratensibus Illinoensibus, prope Kaskaskia." 



Herb. Geol. Surv. Herb. Mohr. 



