WOOTON AND STANDLEY—FLORA OF NEW MEXICO. 663 
Type tocauiry: New Mexico. Type collected by Bigelow. 
Rance: New Mexico. 
New Mexico: Sandia Mountains; Santa Fe; Dulce; San Lorenzo; Burro Moun- 
tains; Gila; White 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. Chrysothamnus formosus Greene, Pittonia 4: 41. 1899. 
Type LocaLity: In the neighborhood of a mineral spring among the hills a few 
miles southwest from Grand Junction, Colorado, 
Rance: Southwestern Colorado to northwestern New Mexico and adjacent Arizona. 
New Mexico: Carrizo Mountains (Standley 7343). Dry hills, in the Upper Sono- 
ran Zone. 
14. Chrysothamnus pulcherrimus A. Nels. Bot, Gaz. 28: 370. 1899. 
Type LocaLity: Woods Landing, Wyoming. 
Rance: Montana to northwestern New Mexico. 
New Mexico: Carrizo Mountains (Standley 7467). Open hills, in the Upper Sono- 
ran Zone. 
A densely branched shrub about 1 meter high. 
15. Chrysothamnus graveolens (Nutt.) Greene, Erythea 3: 108. 1894. 
Chrysocoma graveolens Nutt. Gen. Pl. 2: 136. 1818. 
Bigelovia graveolens A. Gray, Proc. Amer. Acad. 8: 644, 1873, 
Typr Locatity: “On the banks of the Missouri in denudated soils.”’ 
Ranae: 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 5: 62. 1902. 
Typr LOCALITY: White Mountains, New Mexico. Type collected by Wooton (no, 
379). 
Ranaeg: Along streams, Whité Mountains of New Mexico, in the Upper Sonoran 
Zone. 
17. Chrysothamnus elatior Standley, Proc. Biol. Soc. Washington 26: 118. 1913. 
Typp LOCALITY: Sandhills north of Goldenbergs, New Mexico Range Reserve, 
Dona Ana County, New Mexico. Type collected by Wooton, October 12, 1912. 
Ranae: Known only from type locality. 
19. SIDERANTHUS 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 campanulate, 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. viscidus. 
Teeth bristle-tipped; plants not densely glandular. 
Heads discoid....-ccceececececcecceececcceceececceereecees+ 2. 8, 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 mm, broad. 
