RYDBERG: Rocky MOUNTAIN FLORA 3 
“ Picradeniopsis Woodhousii (A. Gray) Rydb. comb. nov. 
Achyropappus Woodhousii A. Gray. Proc. Am. Acad. 6: 546. 1865. 
Schkuhria Woodhousti A. Gray, Proc. Am. Acad. 9: 199. 1874. 
Bahia Woodhousii A. Gray, Syn. FI. 17: 333. 1884. 
Dr. Gray in the work last cited includes this species in the annual 
species of Bahia. The plant is,showever, perennial with a creeping 
rootstock, and in habit so closely resembling P. oppositifolia that 
it is often hard to distinguish the two. The flowers are of a much 
lighter color in P. Woodhousti, the rays being ochroleucous or 
straw-colored, and the pappus-scales are much narrower, lance- 
subulate, and only slightly scarious-margined. 
This should have been included in the New Manual, as the 
type was collected in northern New Mexico. 
PLATYSCHKUHRIA 
Platyschkuhria oblongifolia (A. Gray) Rydb. should have been 
included in Coulter & Nelson’s New Manual. It has been col- 
lected in southwestern Colorado. See Gray’s Synoptical Flora 
17: 332, and my Flora of Colorado 377. 
‘Platyschkuhria desertorum (Jones) Rydb. comb. nov. 
Bahia desertorum M. E. Jones, Zoe 2: 249. 1891. 
This species is a close ally to P. integrifolia, differing mainly 
in the acuminate bracts. 
VILLANOVA 
By an oversight Bahia dissecta (A. Gray) Britton (B. chrysan- 
themoides A. Gray) was retained in Bahia in my Flora of Colorado. 
It should have been restored to Villanova. As nobody seems to 
have used this generic name in connection with the earliest specific 
one, the plant should be known as: 
“\. Vvitlanova dissecta (A. Gray) Rydb. comb. nov. 
Amauria ? dissecta A. Gray, Mem. Am. Acad. 4: 104. 1849. 
Villanova chrysanthemoides A. Gray, Pl. Wright 2: 96. 1853. 
Bahia chrysanthemoides A. Gray, Proc. Am. Acad. 19: 28. 1883. 
Bahia dissecta Britton, Trans. N. Y. Acad. Sci. 8: 68. 1889. 
