Rvdberg : Rocky Mountain flora J 57 



''Hymenoxys multiflora (Buckley) Rydb. 



Phileozera multiflora Buckley, Proc. Acad. Nat. Sci. Phila. 1861 : 

 459. 1862. 



Picradenia multiflora Greene, Pittonia 3 : 273. 1898. 

 Hymenoxys chrysanthemoides multiflora Cockerell, Bull. Torrey 

 Club 31 : 507. 1904. 



Hymenoxys multiflora Osterhoutii (Cockerell) Rydb. 



Picradenia odorata Osterhoutii Cockerell, Bull. Colo. College Mus. 

 1 1 D 1903. 



Hymenoxys chrysanthemoides Osterhoutii Cockerell, Bull. Torrey 

 Club 31 : 505. 1904. 



/ Achillea alpicola Rydb. 



Ipicola Rydb. Mem. N. Y. Bot. Gard. I : 426. 



1900. 



j 



Artemisia Scouleriana (Besser) Rydb. 



Artemisia desertorum Scouleriana Besser ; Hook. Fl. Bor. Am. 1 : 



m 



325. 1833- 



/Artemisia pabularis (A. Nels.) Rydb. 



Artemisia rhizomata pabularis A. Nelson, Bull Torrey Club 27 

 34. 1900. 



1 



^Artemisia viscidula (Osterhout) Rydb. 



Artemisia cana viscidula Osterhout, Bull. Torrey Club 27 : 507. 



1900. 



* Carduus filipendulus (A. Gray) Rydb. 



Cirsium virgvrianum filipendulum A. Gray, Man. ed. 5. 271 



1880. 

 Cirsium filipendulum Engelm.; A. Gray, loc. cit. f as a synonym 

 Cmcus altissimus filipendulus A. Gray, Proc. Am. Acad. 19: 57 



1883. 



• Senecio Flintii Rydb. sp. nov. 



Perennial with a cluster of fibrous-fleshy roots ; stem about 

 3 dm. high, striate, sparingly arachnoid-hairy; basal leaves about 

 8 cm. long; blades orbicular or rounded-oval, abruptly con- 



