SUPPLEMENT TO THE FLORA OF MONTANA. 89 



279; 0. strigosa, Rydberg, Flora, 278. This is the common strigose, 

 muricate, western form of OE. bioinis, L. and, as it has a distinct 

 range from the type and well marked characters, had best be regard- 

 ed as a species. Greene's OE. deprcssa was grown in the botanic 

 .garden at Berkeley, California from seeds of the common erect Mon- 

 tana plant, collected by myself at Custer Station, Aug. 19, 1890 and 

 which is still in my herbarium and differs in no respect from the 

 0. strigosa, Rydb. The peculiar form 6f ,,the plant described by 

 Greene is due to cultivation and new climatic conditions. Here 

 an erect annual or biennial in low ground and occasionally a weed 

 in fields and waste places, like OE. bicnnis, L. 



OEnothera strigosa, (Rydberg), Flora, 278. See OE. niuricata 

 above. 



UMBELLIFER^:. 



Angelica Dawsoni, Wats. ; Thaspinm aureum involucratum, Coulter 

 & Rose. Columbia Falls, July 12 & Aug. 18, 1894, R. S. Williams; 

 Borax, Aug. 8, 1901. 



Angelica Roseana, Henderson, Cont. Nat. Herb. 5:201; 1. c. 7: 

 159. Tree limit, Spanish Peaks, July 20, 1901, Jacob Vogel ; Head 

 of Cottonwood Cr., Tobacco Root Range, 9000 ft., Aug. 10, 1902. 



Bupleurum purpureum, n. sp. 



B. ramtnculoidcs, A. Nelson, (?) Bull. Wyo. Agr. Exp. Sta. 28:115. 



Perennial from a long ligneous rootstock, branched above and 

 producing about three (1-5) erect or somewhat spreading stems 

 3-10 cm. high; glabrous and somewhat glaucus: basal leaves numer- 

 ous, linear-lanceolate, 2-5 cm. long and 3-6 mm. wide ; cauline one 

 to three, shorter and wider, sessile and more or less clasping, ovate- 

 oblong to elliptical, 2-5 cm. long, not prominently nerved : involucre 

 of 4-5 ovate, acute, unequal bracts; those of the involucels about 6, 

 obovate to elliptical and relatively wide and obtuse, rarely acute, 

 3-nerved: primary rays of umbel about 5, unequal, 2-12 mm. long; 

 secondary rays 10-12 very short; umbels 5-7 mm. diameter: flowers 

 about half as large (1-2 mm.) as in B. Aincricaniun ; petals and sty- 

 lopodium dark purple, rarely yellow, anthers yellow: carpel with 

 prominent ribs and well-marked strengthening cells, oil-tubes 1-3, 

 usually 3, in each interval. 



Xot infrequent in alpine situations and appears to intergrade with 

 J3, Amcricannm in intermediate altitudes. It is readily distinguished 



