Plantee Lindheimeriana;. 221 



96. Helianthus cucumerifolius, Torr. fy Gr. Fl. IT. p. 

 319. Sandy soil, west of the Brazos. July, August. The 

 mottled stems, with the leaves all cordate and coarsely toothed, 

 and the narrow involucral scales quite reflexed and tapering 

 gradually into long subulate points, are uniform in all the speci- 

 mens. The foliage is deep green. 



97. H. PRiECOx (n. sp.) : annuus vel biennis ; caule his- 

 pido ramoso ; foliis alternis longe petiolatis (subcinereis) leviter 

 serratis deltoideo-ovatis in petiolum abrupte attenuatis, infimis 

 tantum cordatis ; pedunculis elongatis monocephalis ; involucri 

 foliolis lanceolatis, subulato-acuminatis discum vix superanti- 

 bus ; corolla fl. disci atro-purpurea gracili ; achenio piloso ; 

 paleis pappi lanceolatis puberulis. — In loose sandy soil im- 

 pregnated with salt, Galveston Island. April and May ; in 

 cultivation flowering from June to October. Plant lg-2§ feet 

 high ; the heads about as large as in H. cucumerifolius, to 

 which it is nearly allied ; but from which it is constantly dis- 

 tinguished by its smaller size, the slightly toothed and seldom 

 cordate leaves, the broader and more abruptly pointed in- 

 volucral scales, the slender disk-corollas, the nearly flat (instead 

 of hemispherical) disk in fruit, &c, &c. 



98. H. OCCIDENTALIS (] PLANTAGINEUS, ToTT. &f Gr. I. C. 



Bottom lands, south of Houston. August, September. 



99. H. rigidus, Desf. Fertile prairies. June — August. 



100. H. angustifolius, Ivi/m. Wet prairies. June — Aug. 



101. Coreopsis Drummondii, Torr. fy Gr. I. c. Sandy 

 downs of Galveston Island. May — October. 



102. C. tinctoria, Nutt. Prairies on Galveston Island. 



103. Gaillardia pict a, Don. Galveston Island, on a soil 

 formed of fragments of shells. May. 



104. G. amblyodon, Gay. In sandy or gravelly soil, west 

 of the Brazos. May — July. This species is equally showy 

 with the preceding in cultivation : the copious rays are deep 

 reddish-flame-color, with brown-purple at the base, and under- 

 neath. 



105. G. lanceolata, Michx. Galveston Island, &c. 



