RvDBERG : Rocky Mountain flora 157 



Hymenoxys multiflora (Buckley) Rydb. 

 Pliilcozcra multiflora ikickley, Proc. Acad. Nat. Sci. Phila. i86l : 



459. 1862. 

 Picradciiia multiflora Greene, Pittonia 3 : 273. 1898. 

 Hymenoxys chrysajithcmoidcs multiflora Cockerell, Bull. Torrey 



Club 31 : 507. 1904. 



Hymenoxys multiflora Osterhoutii (Cockerell) Rydb. 

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



1 1 D 1903. 

 Hymenoxys cJirysaiithcmoidcs Osterhoutii Cockerell, Bull. Torrey 



Club 31 : 505. 1904. 



Achillea alpicola Rydb. 



Achillea lanulosa alpicola Rydb. Mem. N. Y. Bot. Card, i : 426. 

 1900. 



Artemisia Scouleriana (Bes.ser) Rydb. 

 Artemisia desertorum Scouleriana Besser ; Hook. I-^l. Bor. Am. i : 

 325- 1833- 



Artemisia pabularis (A. Nels.) Rydb. 

 Artemisia rhi::omata pabularis A. Nelson, Bull Torrey Club 27: 

 34. 1900. 



Artemisia viscidula (Osterhout) Rydb. 

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

 1900. 



Carduus filipendulus (A. Gray) Rydb. 

 Cirsiuui virgiinanum filipendulum A. Gray, Man. ed. 5. 273. 



1880. 

 Cirsium filipendulum Engelm.; A. Gray, loc. cit., as a s\Mionym. 

 C ulcus 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- 



