WOOTON" AND STANDLEY FLORA OF NEW MEXICO. 663 



Type locality: New Mexico. Type collected by Bigelow. 



Range: New Mexico. 



New Mexico: Sandia Mountains; Santa Fe; Dulce; San Lorenzo; Burro Moun- 

 tains; Gila; Y\'hite Sands. Dry plains and foothills, in the Lower and Upper Sonoran 

 zones. 



The type of Bigelovia graveolens appendiculata was collected on the White Sands 

 by Cockerell. 



13. Clirysothamnus formosus Greene, Pittonia 4: 41. 1899. 



T^TE locality: In the neighborhood of a mineral spring among the hills a few 

 miles southwest from Grand Junction, Colorado. 



Range: Southwestern Colorado to northwestern New Mexico and adjacent Arizona. 



New Mexico: Carrizo Mountains {Standleij 7343). Dry hills, in the Upper Sono- 

 ran Zone. 



14. Chrysothaninus pulcherrlmus A. Nels. Bot. Gaz. 28: 370, 1899. 

 Type locality: Woods Landing, Wyoming. 



Range: Montana to northwestern New Mexico. 



New Mexico: Carrizo Mountains {Standley 7467). Open hills, in the Upper Sono- 

 ran Zone. 



A densely branched shrub about ] meter high. 



15. Chxysothamnus graveolens (Nutt.) Greene, Erythea 3: 108. 1894. 

 Ckrysocoma graveolens Nutt. Gen. PI. 2: 136. 1818. 



Bigelovia graveolens A. Gray, Proc. Amer. Acad. 8: 644. 1873. 



Type locality: "On the banks of the Missouri in denudated soils." 



Range: Montana and Nebraska to Utah and New Mexico. 



New Mexico: Tunitcha Mountains; Farmington; Dulce; Zuni Valley; Grants Sta- 

 tion; Embudo; Taos; Cross L Ranch; Chama; Moreno Valley; Cebolla Spring; Datil; 

 Patterson. Plains and low hills, in the Upper Sonoran Zone. 



16. Chrysothamnus confinis Greene, Pittonia 6: 62. 1902. 



Type locality: White Mountains, New Mexico. Type collected by Wooton (no. 

 379). 



Range: Along streams, White Mountains of New Mexico, in the Upper Sonoran 

 Zone. 



17. Chrysothamnus elatior Standley, Proc. Biol. Soc. Washington 26: 118. 1913. 

 Type locality: Sandhills north of Goldenbergs, New Mexico Range Reserve, 



Dona Ana County, New Mexico. Type collected by W^ooton, October 12, 1912. 

 Range: Known only from type locality. 



19. SIDEHANTHTJS Fraser. 



Annual or perennial herbs with alternate, simple to pinnatifid leaves and numerous 

 rather large heads of yellow flowers with yellow rays; leaves small, toothed or pinna- 

 tifid, sessile; involucre carnpanulate, many-flowered, the bracts with green tips, 

 in several series; receptacle naked; achenes obtuse, compressed, sericeous, 8 to 

 10-nerved; persistent pappus of 1 or more series of unequal, smooth or barbellate 



bristles. 



key to the species. 



Teeth of leaves not bristle-tipped ; whole plant densely glandular . . 1 . S. viscidits. 

 Teeth bristle-tipped; plants not densely glandular. 



Heads discoid 2. S. grindelioides. 



Heads radiate. 



Leaves merely toothed; heads 15 mm. broad 3. S. serratus. 



Leaves, at least the lower ones, pinnatifid; heads seldom 

 more than 10 rnm. broad. 



