i From the Bullktin of the Torrey Botanical Club 40: 43-74. 18 March 1913.J 



Studies on the Rocky Mountain flora— XXVIII 



Per Axel Rydberg 



FABACEAE 

 Thermopsis ovata (Robinson) Rydb. 



Thermopsis montana ovata Robinson, Contr. U. S. Nat. Herb, n: 



349. 1906. 



This differs from T. montana not only in its broader leaflets 

 (the only characters given in the original description) but in its 

 spreading leaves, its large stipules, which in the lower leaves are 

 ovate and very oblique, and in its elongate and lax raceme. It 

 differs from T. xylorrhiza A. Nels. in its lax inflorescence and 

 strictly straight pods. 



Dr. S. Watson in publishing Lupinus Kingii described the 

 plant as being perennial. This mistake of his led him as well as 

 others astray, for he redescribed the same plant a few years later 

 as an annual under the name L. Sileri. This fact has been called 

 attention to several times and, among other places, in my Flora of 

 Colorado. It is, therefore, surprising that the error should be 

 repeated by Coulter and Nelson in the New Manual of Botany 

 of the Central Rocky Mountains, where the description begins : 

 "From a perennial rootstock, dwarf, cespitose," etc., characters 

 which in no way apply to the type in the Gray Herbarium nor to 

 the duplicates in the herbaria of Columbia University and the 

 United States National Museum. Furthermore, Coulter and 



43 



