142 RYDBERG: Rocky MOUNTAIN FLORA 
Erysimum amoenum (Greene) Rydb. 
Chetranthus nivalis amoenus Greene, Pittonia 3: 137. 1896. 
Lesquerella stenophylla (A. Gray) Rydb. 
Vesicaria stenophylla A. Gray, Bost. Jour. Nat. Hist. 6: 149. 
1850. 
This was included in Z. Fendleri by Dr. Watson, but I think 
it well distinct. 
Euklisia crassifolia (Greene) Rydb. 
Streptanthus crassifolius Greene, Pittonia 3: 227. 1897. 
Dr. Greene in Leaflets (1: 81-85. D 1904) took up Ewklisia of 
Nuttall, only changing its spelling, but he overlooked that it had 
already been proposed as a genus in Dr. Small’s Flora of the 
Southeastern United States. About three years ago I intended to 
publish it as a genus, making Streptanthus cordatus Nutt. the type 
Unfortunately my notes were never published and forgotten. Dr. 
Small, who had seen them, took up the name in his flora, giving 
me the credit for the same. As he published only one species, EB. 
hyacinthoides, this becomes the type. Dr. Greene took up the 
name for a group, to which neither Dr. Small’s type nor my in- 
tended type (which I also think was Nuttall’s) belong. If S/ref- 
tanthus should be split up into as many genera as Dr. Greene sug- 
gests, neither his species of Awk/:sta nor those known to Nuttall 
would fall within Zyé/isia. My intention was only to divide the 
genus into two genera, Streptanthus and Euklisia. So limited the 
latter genus will contain the Rocky Mountain species here give”. 
Euklisia cordata (Nutt.) Rydb. 
Streptanthus cordatus Nutt.; T. & G. Fl. N. Am. 1: 77. 1838: 
Euklisia longirostris (S. Wats.) Rydb. 
Arabis longirostris S. Wats. Bot. King Exp. 17. 1871. 
Streptanthus longirostris S. Wats. Proc. Am. Acad. 25: 127: 
1890. 
Peritoma Sonorae (A. Gray) Rydb. 
Cleome Sonorae A. Gray, Pl. Wright. 2: 16. 1853. 
