Rydberg : Studies on Rocky Mountain Flora 179 



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This has sometimes orange rays and has then been confused 

 with ^. crocatus, but it lacks the winged petioles of the lower 

 leaves and the large auricles of the upper. It often reaches a 

 height of 3 dm. and then many of the stem leaves are also spatu- 



late. 



Watson 



no. 669 ; otherwise I cannot distinguish it from vS. cymbalariodes. 

 [Plate s, f. 1.] 



British America: Mackenzie River, 1861-2, /. 5. Onion. 

 Montana: Park Co., 1887, Tiveedy, 34.3, in part; Silver Bow 

 Co., 'Mrs. Moore ; Jack Creek, 1897, Rydberg & Bessey, 3266. 

 Wyoming: Beaver Canon, 1895, Rydberg; Bacon Creek, 



4, Aven Nels 

 Idaho : Mt. 



Mts., 1869, S. Watson, 66p. 



Washington: Mt. Paddo, 1882, W.N. Suksdorf ; Columbia 



Nuttall (type). 



Jonesii sp. nov. 



A glabrous perennial : stem about 3 dm. high, slender, terete : 

 basal leaves rounded-obovate, sinuately toothed, sometimes with 

 a pair of small lobes at the base ; their petioles often tinged with 

 red : stem leaves oblanceolate in outline, pinnatifid with oblong 

 segments, generally short-petioled : cyme corymbiform : heads 

 about 8 mm. long: bracts 12-15, lanceolate, acuminate, about ^ 

 as long as the disk, membranous margined ; calyculate ones few, 

 linear : rays about 5 mm. long and 2 mm. wide, 4-nerved : achenes 

 very strongly striate, glabrous. *' 



Nearly related to the preceding, but differing in the toothing of 

 the leaves and the form of the bracts. The type was collected at 

 an altitude of 3300 m. [Plate 6, f. 5.] 



Utah: Alta, Wasatch Mountains, 1879, M. E. Jones, 11 23 

 (type in the Columbia Herbarium). 







14. Senecio subcuneatus sp. nov. 



Perennial with a branched caudex, slightly floccose when 

 young, glabrate in age : stems 3—4 dm. high : basal leaves about 

 5 cm. long, spatulate or cuneate, dentate or serrate above the 

 middle, entire at the base and tapering into a short petiole, rather 

 thick : lower stemleaves narrowly cuneate, short-petioled, dentate 

 at the apex : upper ones linear and sessile, often sharply dentate : 

 cyme corymbiform: heads about 8 mm. high : bracts about 15, 



iSf* 



