56 MONTANA AGRICULTURAL COLLEGE SCIENCE STUDIES. 



Ranunculus glaberrimus, Hook., Fl. Bor. Am. i: 12; R. ellip- 

 tiais, Greene, Pittonia, 2:10; Rydberg, Flora, 163. It is very prob- 

 able that two species are included in Hooker's description of 

 R. glaberrimus, or have been classified as such, but there is no reason 

 for the separation and renaming the one with entire basal leaves, for 

 this is clearly the form Hooker made most prominent in his descrip- 

 tion and represented in his figure (T. V.). If any renaming is done, 

 it should be the one with trilobed basal and entire cauline leaves, 

 which is not found in Montana. The common spring buttercup 

 here is the R. ellipticus, Greene, which is therefore a synonym for 

 R. glaberrimus, Hook. 



Ranunculus Helleri, Rydberg, Bull. Torr. Bot. Club, 29: 159. 

 "Sperry Glacier, 1901, F. K. Vreeland, mo." 



Ranunculus Macounii Oreganus, Davis; R. Oreganus, Howell. 

 A smoothish, thin -leaved form of Macounii with smaller flowers 

 and heads, in swales about Lake MacDonald, Aug. 29, 1903, L. M. 

 Umbach, 773. 



Ranunculus Montanensis, Rydberg, Flora, 166. This appears to 

 be a rank, large-flowered form of R. acriformis, Gray. 



Ranunculus orthorhynchus platyphyllus, Gray; R. maximus, 

 Greene. Borax, Missoula Co., Aug. 8, 1901, also in Yellowstone 

 Park. 



Ranunculus saxicola, Rydberg, Flora, 164. A form of 

 R. Eschscholtsii, Schlecht., tending somewhat in leaf form toward 

 R. eximius, Greene, but having pubescent akenes. 



Ranunculus sceleratus, L. ; R. eremogcncs, Greene, Common in 

 wet places. 



Thalictrum polycarpum, Wats. Said in the Synoptical Flora (i :i6) 

 to "extend apparently to Montana." What evidence Dr. Gray had 

 for this statement is uncertain, for there is nothing in the Gray 

 Herbarium to support it and recent collections seem to show that 

 the species ranges little eastward from the Coast Range. 



BERBERIDACE^:. 

 Berberis Aqui folium, Rydberg, Flora, 170, is the next species. 



Berberis repens, Lindl. Rydberg (Flora, 170) decides that ;he 

 names of these two species of western Berberis have been transposed 

 on the ground that Pursh's figure of Aquifolium (Flora Am. Sept; 



