CONTRIBUTIONS TO WESTERN BOTANY. 613 



known names and thousands of dollars expense in re- 

 naming herbaria with absolutely no compensating ad- 

 vantage. I have used double authorities when there are 

 any because I believe it more just. I have followed the 

 order of Gray rather than that of the Pflanzenfamilien 

 for convenience and not because I believe it better, for I 

 prefer the latter. 



In three cases I have deviated from the letter of the 

 circular referred to above, because I believe ultimately 

 some date near 1885 will be fixed in which varietal names 

 shall supersede specific ones in the same genus. Should 

 this not be done the following will be the nomenclature 

 of the three species: A sh'ag-alus cer amicus Sheldon for 

 A. migustiis and its varieties (the name foliosus Gray 

 used as a variety, foliolosus Sheldon not Gray, having 

 been given prior to ,1885) ; Astragalus salinus Howell for 

 A. latus Jones; Hedysarum boi'eale y?lv. Jiavesceiis (^Coult. 

 & Fisher) for II. boreale var. leucanthum Greene. 



Clematis verticillaris var. Columbiana (Nutt. Jour. 

 Phil. Acad., vii, p. 7). 



Clematis Columbiana, Nutt. 1. c. 



No. 5571. July 3, Provo, Utah, in Slate Canon, 8000" 

 alt., on moist slopes, among oak brush. 



A comparison of many specimens in the National 

 Herbarium, from various localities, together with my own 

 throughout the Plateau region, makes it clear that this is 

 a well marked variety, being characterized by the usually 

 entire or crenulate (rarely toothed) leaflets and different 

 fruit. I have seen but one transition specimen, from 

 Minnesota. The typical species ranges from the Atlantic 

 to the Rocky Mountains, and the variety ranges thence 

 westward to the coast. 



Akenes obovate, about i" long and y^" wide, with apex 

 crowned by the long tail, which is very slender, and 



