228 Planta Lindheimeriana. 



432. Aldama uniserialis. Gymnopsis uniserialis, Hook. 

 lc. PI. t. 145 ; Ton. &f Gray, Fl. 2. p. 317. Shady woods, 

 On Comale Creek. June — August. In this and the allied 

 species, united by De Candolle with Gymnolomia, H. B. K., 

 under the common name of Gymnopsis, " the remarkable 

 manner in which the fertile achenia of the disk are inclosed 

 in the paleaB of the receptacle, like those of the ray-flowers in 

 Melampodium, seems fully to warrant the retaining for them 

 Llave and Lexarsa's generic name, Aldama." Benth. Voy. 

 Sulph. p. 116. 



433. Simsia (Barrattia : achenia calva glabra) calva. 

 Barrattia calva, Gray fy Engelm. in Proceed. Amer. Acad. 1. 

 p. 40. Rocky hills and terraces, often under shrubby live oak, 

 along the Guadaloupe and Pierdenales. July - C ctober. — 

 Root fleshy, perennial. Size and number of the rays very 

 variable. — The discovery of an allied species with a slightly 

 biaristulate or bidentate pappus, as described in Planta, Fend- 

 leriana, p. 85., invalidates the character of the genus Bar- 

 rattia, which we had established on this plant. Although 

 the want of a pappus would refer it to a different Candol- 

 lean division of Helianthece, it cannot now be generically 

 distinguished from the genus Simsia. 



■f Viguiera brevipes, DC. Prodr. 5. p. 578. Rocky hill 

 tops, on the Upper Guadaloupe. October. — The same form 

 was collected in Western Texas by Mr. Wright. It agrees 

 with the character in the Prodromus. 



434. V. brevipes, /?. foliis plerisque rhomboideo-ovatis 

 membranaceis. V. Texana, Torr. fy Gray, FL 2. p. 318. 

 Helianthella latifolia, Scheele in Linncea, 22. p. 160. Mar- 

 gin of woods and on bushy slopes, New Braunfels. July - 

 October. 



(96.) Helianthus cucumerifolius, Torr. fy Gray, Fl. 2. 

 p. 320. New Braunfels. — This is probably H. Lindheimeri- 

 anus, Scheele in Linncea, 22. p. 159. But it is not perennial. 



(259.) Helianthus lenticularis, Dough; Torr. &f 

 Gray, Fl 2. p. 319. Prairies on the Guadaloupe. July. 



