THISTLE FAMILY. 771 



ISOPAPPUS Torr. & Gray, Fl. N. A. 2 : 239. 1842. 



Two siieoies. North America. Atlantic and Western. 



Isopappus divaricatus (Nutt.) Torr, A: Gray, Fl. N. A. 2 : 23;t. 1842. 



Spreading Golden Astek. 



Inula {Chrysoi)sis) divuiicatu, Nutt. Gen. 2 : 152. 1818. 



ApJupappus divaricatus Gray, Syn. Fl. N. A. 1, pt. 2 : 130. 1884. 



Gray, Man. ed.G, 245. Chap. FI. 215. Gray, Syu. Fl. N. A. 1. c. Coulter, Coutr. Nat. 

 Herb. 2:187. 



(Jarolinian and Louisianian areas. .Southern Kansas to central Texas, and Florida 

 to Georgia. 



Alakama: Lower hills. C'entral Prairie rej;'ion. Dry sandy exposed places, road- 

 sides. Chambers County (A'. J. 'S'mi//!). Talladega County, Sylacauga. Montgom- 

 ery County. Floweis yellow; September. October. Local and frequent. 



Type locality : "In the yicinity of Savannah in Georgia, common." Discovered by 

 Dr.'Kaldwyu. ' 



Herb. Geol. Sur\'. Herb. Mohr. 



CHONDROPHOR A Kaf. New Fl. N. A. 4 : 7!>. 1836. 

 (Lkielowia DC. Prodr. 5:329. 1836. Not Spreng.) 



Two species, perennials, eastern North America. 

 Chondrophora nudata (Michx.) Brittou, Mem. Torr. Club, 5 : 317. 1894. 



Clinisocoiiia niiclata Michx. Fl. Pior. Am. 2 : 101. 1803. 



JUgelovia niidata DC. Prodr. 5 : 329. 1836. 



Ell. Sk. 2 : 309. Gray, Man. ed. 6, 246. Chap. Fl. 215. Gray, Syn. Fl. N. A. 1, i)t. 2 : 

 141. 



Carolinian and Louisia-nian areas. Virginia, along the coast to Florida and east- 

 ern Louisiana. 



Alakama: Coast plain. Low pine barrens. Moldle and Buldwin counties. Flow- 

 •Ms yellow; Si^ptember, October, ^'ery common. 



Type locality : " Hab. in humidis Carolinae." 



Herb. Mohr.' 



Chondrophora virgata (Nutt.) Greene, Erythea, 3 : 91. 1895. 



('hrysocoma vinjala Nult. (ien. 2 : 137. 1818. 



Bigelovia nudata var. virf/ata Torr. & Gray, Fl. N. A. 2 : 232. 1842. 



Chondrophora nudata virfiata Brittou, Mem. Torr. ( 'lub, 5 : 317. 1894. 



Nearly allied to the above by its inflorescence and the morphological characters 

 of the flowers, but differing widely in its habit of growth, range of distribution, 

 and Ibliagc, and deserving to be recognized as a distinct species. The many-headed 

 rootstock ]>roduces nuuu-rous stout shoots crowded witli the filiform leaves, forming 

 dense tufts. In the Alabama specimens and others from Louisiana all Ihe leaves 

 are filiform. It is only in a specimen from Texas th;it a tendency can be observed 

 to the developuu^nt of a wider leaf blade. These linear lanceolate leaves found in 

 young shoots are not over ^-,. inch wide, acute, channeled toward the base and with- 

 out lateral nerves. 



On comparison with Nuttall's type in the herbariuiu ol' the Academy of Science, 

 Mr. Thomas Meehiin finds the Alabama plant identical with Nuttall's specimen, on 

 which the radical leaves are wanting. Nuttall says : "Nearly allied to Chrijsocoma 

 nudata, but distinct, and resemldes more Solidaijo teniiifolia, with which it mingles 

 and is easily confounded." 



Carolinian ( ? ) and Louisianiau areas. New Jersey ( ? ), western Louisiana ( Hah), 

 'I'exas, (liiddell). 



Alabama: Mountain region. Damp mossy rocks. Dekalb County, Lookout 

 Mountain, rocky banks oi'Little Riverabovcthe falls, 1,800 feet. August, September. 



Type locality: "On the borders of swamps in New Jersey, near the seacoast." 

 (Mas never been I'ound since in that State.) 



Herb. Geol. Surv. Herb. Mohr. 



BRINTONIA Greene, Erythea, 3 : 89. 1895. 

 One species. Eastern North America. 

 Brintonia discoidea Greene, Erythea, 3 : 89. 1895. 

 Solidaqo disrnUha Torr. & Gray, Fl. N. A. 2 : 195. 1842. 

 Aster discoideus Lll. Sk. 2 : .3.58. 182 L 



Ell. Sk. !. c. Chap. Fl. 208. (irny, Syn. Fl. N. A. 1, pt. 2 : 144. 

 Louisianian area. (Georgia to I'loridn, west to Louisiana. 



