THISTLE FAMILY. 771 
ISOPAPPUS Torr. & Gray, Fl.N.A.2:239, 1842. 
Two species, North America, Atlantic and Western. 
Isopappus divaricatus (Nutt.) Torr. & Gray, F'1.N. A. 2: 239. 1842. 
SPREADING GOLDEN ASTER. 
Inula (Chrysopsis) divuricata Nutt. Gen. 2: 152. 1818. 
Aplopappus diraricatus Gray, Syn. F1.N. A. 1, pt.2: 130. 1884. 
Gray, Man. ed. 6, 245. Chap. Fl. 215. Gray, Syn. FI. N. A. 1. c. Coulter, Contr. Nat. 
Herb. 2: 187. 4, 
Carolinian and Louisianian areas. Southern Kansas to central Texas, and Florida 
to Georgia. 
; ALABAMA: Lower hills. Central Prairie region. Dry sandy exposed places, road- 
sides. Chainbers County (Z. 4. Smith). Talladega County, Sylacauga. Montgom- 
ery County. Flowers yellow; September, October. Local and frequent. 
Type locality: “In the vicinity of Savannah in Georgia, common.” Discovered by 
Dr. Baldwyn. 
Herb. Geol. Surv. Herb. Mohr. 
CHONDROPHORA Raf. New FIN. A.4:79. 1836. 
(BierLowra DC. Prodr. 5: 329, 1836. Not Spreng.) 
Two species, perennials, eastern North America. 
Chondrophora nudata (Michx.) Britton, Mem. Torr. Club, 5:317. 1894. 
Chrysocoma nudata Michx. Fl. Bor. Am. 2:101. 1803. 
Bigelovia nudata DC. Prodr. 5: 329. 1836. 
Pes Sk.2:309. Gray, Man. ed. 6,246. Chap. F1.215. Gray, Syn. FLN.A.1, pt.2: 
141. 
Carolinian and Louisianian areas. Virginia, along the coast to Florida and east- 
ern Louisiana. : 
ALABAMA: Coast plain. Low pine barrens. Mobileand Baldwin counties. Flow- 
ers yellow; September, October. Very common. 
Type locality: ‘‘Hab.in humidis Carolinae.” 
Herb. Mohr. 
Chondrophora virgata (Nutt.) Greene, Erythea, 3:91. 1895. 
Chrysocoma virgata Nutt. Gen. 2:137. 1818. 
Bigelovia nudata var. virgata Torr. & Gray, FIN. A. 2: 232. 1842. 
Chondrophora nudata virgata Britton, Mem. Torr. Club, 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 foliage, and deserving te be recognized as a distinct species. ‘I'he many-headed 
rootstock produces numerous stont shoots crowded with the filiform leaves, forming 
dense tufts. In the Alabama specimens and others from Louisiana all the leaves 
are filiform. It is only ina specimen from Texas that a tendency can be observed 
to the development of a wider leaf blade. These linear lanccolate 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 herbarium of the Academy of Science, 
Mr. Thomas Mechan finds the Alabama plant identical with Nuttall’s specimen, on 
which the radical leaves are wanting. Nuttall says: ‘Nearly allied to Chrysocoma 
‘nudata, but distinct, and resembles more Solidago tcnuifolia, with which it mingles 
and is easily confounded.” 
Carolinian (?) and Louisianian areas. New Jersey (?), western Louisiana (Hale), 
Texas, (/iddell). 
ALABAMA: Mountain region. Damp mossy rocks. Dekalb County, Lookout 
Mountain, rocky banks of Little River above the falls, 1,800 feet. August, September. 
Type locality: ‘“‘On the borders of swamps in New Jersey, near the seacoast.” 
(Has never been found since in that State.) 
Herb. Geol. Surv. Herb. Mohr. 
BRINTONIA Greene, Erythea, 3:89. 1895. 
One species. Eastern North America. 
Brintonia Giscoidea Greene, Erythea, 3:89. 1895. 
Solidago discoidca Torr. & Gray, FI.N.A.2:195, 1842. 
Aster discoidens Ell. Sk. 2: 358. 1821. 
Ell. Sk. J. ¢. Chap. FI. 208. Gray, Syn. FL N. A. 1, pt. 2: 144, 
Louisianian area. Georgia to Florida, west to Louisiana. 
