COMPOSITE. 369 



flowers cream color: achenes nearly linear, angular and pubescent. — 

 Phuns of the '["riickee River, near Truckee, Mr. Sonne. Sept. 



* * Stem, and often foliage also pannose-tomentose ; heads and achenes 

 narrow and elongated; style-lips i:ery long and filiform. 



•t— Ray-flowers ivanting. 



5. C. speciosus, Nutt. Trans. Am. Phil. Soc. vii. 323 (1840). Stout 

 shrub 2—4 ft. high, the numerous leafy branches ending in a broad 

 cymose corymb: leaves narrowly linear, 2 — 3 in. long, and with the 

 branchlets of the inflorescence minutely white-tomentose: heads 5 lines 

 high; bracts of involucre firm, acutish, not ciliate, tomentose on the 

 back, or the inner ones glabrous except near the tip, all in vertical ranks 

 of 3 or 4: corollas with sleader almost glabrous tube longer than the 

 subcyliudric rather deeply 5-toothed limb — Plains of Plumas Co. and 

 northward, east of main Sierra. 



6. C. Californiciis, Greene, Eryth. iii. Ill (1895). Seldom 2 ft. 

 high, stout ; floweriug branches densely white-tomentose, the foliage 

 more loosely and flocculeutly so: leaves broad for this group, spatulate- 

 liuear and oblanceolate, acute, barely 2 in. long: heads in an ample 

 pyramidal panicle; involucre }{ in. high or more, glandular-puberulent, 

 the bracts only 3 in each vertical rank and very unequal, the inner ones 

 lanceolate, all acute: corolla with short tube not as long as the sub- 

 cyliudric rather deeply toothed limb: achenes with a dense rather coarse 

 pubescence. — Common at considerable elevations in the Sierras of 

 Nevada and Placer counties. Sept., Oct. 



7. C. occideiitalis. C. Caiifornicus, var. occidentalism Greene, 1. c. in 

 part. Taller and more slender, in no part loosely or flocculently 

 tomentose ; leaves narrowly linear, the flowering branches somewhat 

 numerous and reedy, bearing the heads in smallish and dense clusters: 

 bracts of the involucre 4 in each rank, ovate- to linear-lanceolate, cuspi- 

 dately acutish. — In Kern and Sauta Barbara counties. Sept. 



8. C. Mohavensis, Greene, 1. c. 113. Stout, 3 — 5 ft. high, the coarse 

 and often flexuous ultimate branches usually glabrate, glutinous and 

 nearly leafless; leaves when present sparse, 1 in. long: cymose heads 

 only 4—5 lines high; bracts rather thin, viscid-puberulent, narrow but 

 obtuse, about 5 in each rank : achenes appressed-villous. — Of the 

 Mohave Desert, but now found along the railway in the Tehachapi region 

 of Kern Co. Oct. 



9. C. Nevadensis, Greene, 1. c. 114; Gray, Syn. Fl. 136 (1884), under 

 Bigelovia. Only 1 — 2 ft. high, forming a dense reedy suffrutescent tuft ; 



