60 ERYTHEA. 



331 (1840). Aplopappiis racemosus^ Gray, partl}^ De- 

 scribed as having an obconic involucre and achenes hirsute 

 at summit; the heads in clusters at the ends of fastigiate 

 branches. — Plains of the Columbia. 



5. P. GLOMEEATA, Torr. & Gray, 1. c. Homopappiis 

 glomeratuSj Nutt. 1. c. Aplopappiis racemosiiSy var. glomer*- 

 ellus, Gray, partly. Described as with broad subglobose 

 involucre and perfectly glabrous achenes; the heads in inter- 

 rupted spikes.— Habitat of the preceding. 



6. P. ARGUTA, Torr. & Gray, 1. c. Homopappiis argidiis^ 

 Nutt. 1. c. This also made a part of Aplopappiis racemosus^ 

 by Gray; but it has leaves "strongly serrated," whereas in 

 the preceding these are nearly or quite entire. The involu- 

 cre is obconic; the heads are in axillary and terminal sessile 

 clusters. 



7. P. ELATA, Greene, Man. 173 (1894). — A rather rare 

 plant of subsaline ground in western middle California; 

 greatly isolated from its congeners. It does not appear to 

 have been known to the authors of the State Survey Botany. 



8. P. RACEMOSA, Torr. & Gray, PL ii. 244 (1842). Homo- 

 pappus {Myrianilius) racemosuSy Nutt. 1. c. 332 (1840). 

 Aplopappiis racemosiis^ Torr., A. Gray. Totally distinct from 

 all the foregoing, by its numerous rays, somewhat silky- 

 pubescent achenes, and usually hoary-cottony pubescence. 

 Northeastern California and northward. 



-* — K- Bracts of involucre more numerous^ narrow, 



not sqiiarrose. 



9. P. uniflora. Donia uniflora, Hook. Fl. ii. 25, t. 124 



(1834). Homopappiis linifloriis, Nutt. L c. (1840). Aplo- 

 pappiis iinifloriis, Torr. & Gray, Fl. ii. 241 (1842), — Plains 

 of the northern Bocky Mountain Region. 



10. P. innloides, Homopappiis inuloides, Nutt. Trans. 

 Am. Phil. Socvii. 333 (1840). Aplopappiis muloides, Toiv. 

 <fe Gray, FL ii. 241 (1842).— Habitat of the last 



i 



