448 RypserGc: Rocky MouNrAIN FLORA 
rather than with H. Richardsoni. The rays are, however, not 
so broad or so decidedly cuneate as in that species. The following 
specimens belong to H. Macount. 
SASKATCHEWAN: 1858, Bourgeau; Cypress Hills, 1880, John 
Macoun; Medicine Hat, 1894, John Macoun 5077; Bare sige 
1906, Macoun & Herriot 72840. 
Montana: “Northwest Boundary,’ 1874, Cowes; Falls of 
Missouri, 1886, R. S. Williams 4520; Midvale, 1903, Umbach 
150; Manhattan, 1895, Rydberg 2930. 
© Hymenoxys Greenei (Cockerell) Rydb. comb. nov. 
Picradenia biennis Greene, Pittonia 3: 272, in part. 1898. 
Not Actinella biennis A. Gray. 1878. 
Hymenoxys Lemmoni Greene Cockerell, Bull. Torrey Club 31: 
479. 1904. 
I think this is specifically distinct from Hymenoxys Lemmont. 
The best character to distinguish the two was not pointed out 
by Professor Cockerell or by Dr. Greene. The inner bracts 
in Palmer 261, the type number of H. Greenei, of which there are 
five specimens on two sheets in the Columbia University her- 
barium, are broadly obovate and more or less erose-dentate on 
the margins, while in all specimens seen of H. Lemmoni they 
are elliptic and entire. Watson 616, from Nevada and referred 
to the subpecies Greenei, belongs to H. Lemmoni. 
DUGALDEA 
Professor Nelson included in this genus Hymenoxys heleni- 
oides Cockerell (Picradenia helenioides Rydb.), on what ground 
I do not know. Both I, who, with Mr. Vreeland, discovered 
the plant, studied it in the field, and described it, and Professor 
Cockerell, who has spent so much time on Hymenoxys, believed 
it a good species of that genus. In Dugaldia Hoopesii the bracts 
are in more than two series, distinct, and in age reflexed; in 
Hymenoxys helenioides they are as in the rest of that genus not 
reflexed, in strictly two series, and those of the outer series 
are united at the base. 
Dysopia 
Nelson in the New Manual has evidently given Dysodia Cav. 
the same limitation as it has in Engler & Prantl’s Pflanzen- 
