RvDBERG : Rocky Mountan flora 141 



Odostemon Aquifolium ( Pursh) Rydb. 

 Bcrbcris Aquifoliiiin Pursh, Fl. Am. Sept. 219. 1814. 

 Bcrbcris rcpcns Lindl. Bot. Reg. //. iijd. 1828. 

 Bcrberis nana Greene, Pittonia 3 : 98. 1 896. 



Odostemon nutkanus (DC.) Rydb. 

 Malionia Aqnifoliuui nnfkana DC. Syst. 2 : 20. 1821. 

 Bcrbcris Aquifoliutn Lindl. Bot. Reg. sub pi . iiy6. 1828. 



Odostemon nervosus (Pursh) Rydb. 

 Bcrberis nervosa Pursh, V\. Am. Sept. 219. 18 [4. 



Odostemon Fremontii (Torr.) Rydb. 

 Berberis Fremontii Torr. Bot. Mex. Bound. 30. 1859. 



Lepidium crenatum (Greene) Rydb. 

 Thelypodium crcnatnin Greene, Pittonia 4 : 20. 1 899. 



The species was described from flowering specimens, but the 

 ovaries or young fruit were developed enough to indicate the true 

 genus. Dr. Greene was probably led astray by the fact that the 

 specimens were labeled Tlwlypodinm intcgrifoliiim. 



Erysimum asperrimum (Greene) Rydb. 

 ClieirantJms asperrimus Greene, Pittonia 3 : 133. 1896. 

 Erysinmin piiniilnni Rydb. Mem. N. Y. Bot. Gard. i : 189. 1900. 



In my Flora of Montana I took up Nuttall's E. p?nniluni for 

 this species. This was evidently an eiror into which I was led by 

 Dr. Greene's discussion in Pittonia, loc. cii. E. puniilum Nutt. 

 remains as yet unknown, but from the description it must be a 

 close relative of E. nivalc and E. radicatnni, if not one of these 

 species. 



Erysimum Bakeri (Greene) Rydb. 

 Chcirantluis aridns GYQQ\'\&,V\i\.omdi ^■. 198. 1900. "t^ot C. aridiis 



A. Nelson. 1899. 

 CheirantJuis Bakeri Greene, Pittonia 4 : 235. 1 901. 



Erysimum argillosum (Greene) Rydb. 

 CheirantJuis argillosns Greene, Pittonia 3 : 136. 1896. 



