THISTLE FAMILY. 789 



Alabama: Over the State. Dry exposed siliceous soil, open copses and woods. 

 Rays bright blue; October, November. Commou. Most coininon on barren sandy 

 rids^es in the coast pine barrens. 



Ty])(' locality: " Hab. in America septentrionali.'" 



Herb. Geol. Snr\'. Herb. Mohr. 



CONYZA L. Sp. PI. 2 : 8fil. 1753. 



ConyzacoulteriGray, Syn.Fl. N.A. 1, pt.2:2L'l. 18iS4. 



Conlter, Contr. Nat. Herb. 2 :200. 



Ala]5ama: Fugitive from the Sonthwest, on ballast. Mobile County. Observed 

 once in September, 1890. 



Type Iccality: ''Eiver bottoms, &c., W. Texas and Colorado to Arizona and 

 Calilornia." 



Herl). Geol. Snrv. 



B A.CCHARIS L. Sp. PI. 2 : 8(50. ITo.S. 



About 275 species, evergreen shrubs and undershrubs, American, chiefly of tro])- 

 iial and warmer temperate South America. North America, 19; Atlantic, :->. 



Baccharis halimifolia L. Sp. PI. 2 : 860. 17.53. Groundsel Tkee. 



Ell. Sk. 2 : 319. Grav, Man. ed. 6, 266. Chap. Fl. 217. Grav, «vn. Fl. N. A. 1. pt. 2: 

 222. Coulter, Contr. Nat. Herl). 1 : 200. 



Carolinian to Lonisiauiau area. Coast of New York and New Jersey to Florida, 

 west to Texas. 



Alaba.ma : Coast plain. Littoral belt. Fiesh and brackish marshes. Mobile 

 and Baldwin counties. Flowers white: October. Evergreen shrnb, o to 10 feet 

 high. 



Type locality : " Hab. in ^ irginia." 



Herb. Geol. Surv. Herb. Mohr. 



Baccharis angustlfolia Michx. Fl. Bor. Am. 2 : 12.5. 1803. 



Nak row-leaf Gkoi'xdskl. 



Ell. Sk. 2:318. Chap. Fl. 218. Grav, Svn. Fl. N. A. 1. pt. 2: 222. Conlter, Contr. 

 Nat. Herb. 2 : 200. 



Mexico. 



Louisianian area. Seashoie Sontli Carolina to Florida, west to Texas and saline 

 plains of southern Arizona. 



Alabam.a: Littoral belt. Salt marshes. Mobile County. Navy Cove. Flowers 

 September, October. Four to 6 feet high. Much less frequent than the last. 



Type locality: " Hab. in scirpetis maritiniis, a Carolina ad Floridani." 



Herb. Geol. Surv. Herb. Mohr. 



PLUCHEA Cass. Bull. Soc. Philom. 1817 : 31. 1817. 

 About 30 species, of warmer regions. Four in the Southern United States. 



Pluchea camphorata (L.) DC. Prodr. 5 :451. 1836. Salt-marsh Fleahaxe. 



Erifjeron camphoratum L. Sp. PI. 2 •.'6iM. 17.53. 



Co7i>jza camphorata Ell. Sk. 2 : 321. 



Ell.Sk. 1. c. Grav, Man. ed. 6, 267. Chap. Fl. 218. Gray, Svn. Fl. N. A. 1, pt. 2 : 226. 

 Conlter, Contr. Nat. Herb, 2 : 201. Wats. Hot. Calif. 1 : 335. 



Mexico, Cuba. 



Carolinian and Louisianian areas. Coast of southern New Enuland to Florida, 

 west to Texas and Arizona; coast of California. 



Alabama: Snbmaritime and Littoral region. In brackish and saline swamp*. 

 Mobile County. Baldwin County, shores of Mobile Bay and outlying islands. 

 Flowers deep pink; September, r)ctober. Frequent. Annual. 



Type locality ; " Hab. in Virginia." 



Herb. Geol. Surv. Herb. Mohr. 



Pluchea petiolata Cass. Diet. Sci. Nat. 42 : 2. 1836. ' STuox(;-scENTEr) Pluchea. 

 Pluchea foetida DC. Prodr. 5:452. 1836. Not Bacchavh foetida L. 

 Gray, Syn. Fl. N. A. 1, pt. 2 : 226, In part, as P. camphorata. Chap. Fl. ed. 3, 2.38. 



1 See Bull. Torr. Club, vol. 21, p. 265. 1894. 



