128 Rydberg : Rocky Mountain flora 



Grindelia integerrima sp. nov. 



Perennial, with a cesj3it0.se base ; stems about 3 dm. high, 

 glabrous, somewhat angled by the decurrent lines ; leaves nar- 

 rowly oblanceolate, 2-4 cm. long, acute, strongly resinous-dotted, 

 entire ; heads numerous, corymbose ; involucre about 7 mm. high 

 and 1 cm. wide ; bracts lanceolate, with very short, terete, squar- 

 rose tips ; ligules 6-7 mm. long ; pappus-bristles slightly flat- 

 tened, curved and twisted, 3 mm. long, about the length of the 

 achenes. 



This somewhat resembles Grindelia nana in general habit but 

 differs in the broader bracts with much shorter tips and the 

 strongly curved and twisted pappus-bristles. 



Idaho: Sandy soil near Granite Station, Kootenai County, 

 July 29, 1892, Sandberg, MacDougcd, & Heller 784 (type, in herb. 

 N. Y. Bot. Gard.). 



Grindelia Columbiana (Piper) Rydb. comb. nov. 



Grindelia discoidea Nutt. Trans. Am. Phil. Soc. 7: 315. 1840. 



Not G. discoidea H. & A. 1836. 



Grindelia nana discoidea A. Gray, Syn. Fl. I 2 : 1 19. 1884. 



Grindelia nana columbiana Piper, Contr. U. S. Nat. Herb. II : 556. 



1906. 



Chrysopsis angustifolia sp. nov. 



Chrysopsis stenophylla Britt. & Brown, III. Fl. 3: 32;. 1898. 

 Not C. stenophylla (A. Gray) Greene. 1884. 



Perennial, with a cespitose caudex ; stems erect, 2-4 dm. high, 

 canescent and more or less hirsute ; leaves narrowly linear-oblance- 

 olate, the lower short-petioled, the upper sessile, 2-5 cm. long, 2-5 

 mm. wide, acute, grayish-strigose on both sides, somewhat hispid- 

 ciliate on the lower portion ; involucres turbinate-campanulate, 

 8-10 mm. high and about as broad ; bracts narrow and linear, acute, 

 grayish-strigose ; rays about I cm. long ; achenes canescent : 

 outer pappus of short bristles ; inner pappus-bristles tawny. 



This is intermediate between Chrysopsis foliosa and C. steno- 

 phylla. It resembles the latter in leaf-form but differs in being 

 more canescent, less hispid, not at all viscid, and in the bracts, 

 which are narrower, and strigose-canescent instead of hispid and 

 viscid-puberulent. From C. foliosa it differs in the narrower, 

 spreading leaves, the more distinctly peduncled heads, and less 

 white pubescence. 



