Plante Lindheimeriane. 223 
+S. wemorauis, Ait.; Torr. & Gray, Fl. 2. p. 220. 
Prairies, Upper Pierdenales. October. 
+ S. mvcana g? Torr. & Gray, Fl. 2. p. 221. On declivi- _ 
ties, Upper Pierdenales. October. 
+ S. pecemriora, DC. Prodr. 5. p. 332. Prairies, Upper 
Pierdenales. October.— This, if rightly identified, must 
stand next to S. Radula, from which it differs in having con- 
siderably larger heads, narrower involucral scales, and cine- 
reous entire triplinerved leaves. —It has been abundantly 
collected at Comanche Spring, in October, 1849. 
(253.) Isoparpus pivaricatus, Torr. & Gray, Fl. 2. p. 
239: pedunculis brevioribus. On granite along the Liano. 
November. 
+ ApLopaprus spinuLosus, DC.; Torr. & Gray, l. c. Var. 
segmentis foliorum rachique filiformi-setaceis. Sandy soil 
under Muskit bushes, on the Liano. 
(630.) Centaurip1um Drummonpn, Torr. & Gray, EL 2: 
p- 246. Dry, rocky prairies on the Liano. November. — 
Raised from Texan seeds in the Cambridge Botanic Garden, 
this proves to be a very showy plant. Its numerous, golden 
yellow rays are fully an inch in length. The radical and 
lowest cauline leaves are strongly laciniate-pinnatifid or even 
bipinnatifid. . 
418. Grinpeia squarrosa, Dunal; DC. Prodr. 5. p. 
314. G. Texana, Scheele, in Linnea, 21. p. 60. Stony 
prairies, New Braunfels. August. Plant 2 to 4 feet high, 
branching above; the heads nearly an inch in diameter, 
larger, indeed, than ordinary for G. squarrosa, to which, how- 
ever, it clearly belongs. 
(631.) Curvropsis nisprpa, Hook. Fl. Bor.-Am. 2. p. 22; 
Torr. & Gray, Fl. 2. p. 255. Var. srenopuyiya: foliis line- 
ari-spathulatis. On the Liano growing, from strong ligneous 
roots, in the crevices of smooth granite rocks. November. 
419. C. canescens, Torr. & Gray, Fl. 2. p. 256. Rocky 
prairies, on the Comale and Upper Guadaloupe. June — 
August. 
