OBSERVATIONS ON THE COMPOSITE, 109 



cence, the foliage scabrous: leayes narrowly oblong, | incb 

 long, sharply and saliently toothed: heads solitary at the 

 ends of bracted pedunculiform branches: rays light yellow: 

 achenes very pubescent: pappus shorter and more aristiform 

 than in the preceding.— Los Angeles Bay, Lower California. 

 Edward Palmer, 1887, n. 539. 



Annual species. ' 



6. E. gracile. Dieteria gracilis, Nutt. PI. Gamb. 177 

 (1848). Aplopappus gracilis. Gray, PI. Fendl. 76 (1849). 

 Aster Dieteria, O. Ktze. 1. c. 315.— Western Texas and 

 northern Mexico to Northern New Mexico and Arizona. 



7. E. stenolobum. Annual, erect, stoutish, a foot high, 

 simple up to the few subterminal monocephalous branches: 

 pubescence scanty, of short spreading usually gland-tipped 

 hairs: leaves bipinnately divided into narrowly linear seg- 

 ments: involucre f inch broad, the bracts narrowed into 

 slender herbaceous squarrose tips: rays light yellow: 

 achenes turbinate, densely silky: pappus scanty, the longer 

 bristles very distinctly flattened and almost subulate.— A 

 Mexican species, collected and distributed by Mr. Prmgle 

 under the name Aplopappus tenuilobus, which, fortunately 

 has remained a nomen nudum— tenuilolnis being one of those 

 inadraissable hybrid adjectives which Dr. Gray himself 

 condemned, as all scholars must. 



* * Rays red, or purplish. 



8. E. gyiiinocephalum. Aplopappus gymmcephalus, 

 DG. Prodr. v. 346 (1835). A. hlcphariphyllus, Gray, PL 

 Wright, i. 97 (1852). Aster gymnocephalus, Gray, Proc. 

 Am. Acad. xv. 32 (1880).— Both DeCandolle and Asa Gray 

 at first believed the rays of this plant to be yellow; the latter 

 afterwards judged them to be red, and our specimens show 

 them to have been of a sort of rose-red. It is not impossible 

 that they may vary from yellow to red in the species, or 

 that two species may be lurking under this name. In the 

 text of tie Phintce Wrightiance Dr. Gray observed that if 



