740 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
New Mexico: Tunitcha Mountains; Farmington; Chupadero; Gallup; Atarque 
de Garcia; Moreno Valley; San Augustine Plains, Dry hills and plains, in the Upper 
Sonoran Zone. . 
A low, densely branched shrub, 50 cm. high or less, rarely larger. The small yellow 
heads are very numerous, making it a handsome plant when in full flower. 
2. Tetradymia filifolia Greene, Bull. Torrey Club 25: 123. 1898. 
Type LocaLity: Round Mountain, White Mountain Range, New Mexico. Type 
collected by Wooton (no, 183), 
RanGeE: Known only from type locality, in the Upper Sonoran Zone. 
124. BEBBIA Greene. 
Much branched plant about 1 meter high, shrubby at the base, with slender rushlike 
erect branches and few alternate linear leaves¢heads pedunculate, 20 to 30-flowered; 
involucre campanulate, the bracts imbricated in 2 or 3 series, oblong, appressed; 
achenes turbinate, hirsute, faintly 5-nerved; pappus of 15 to 20 plumose bristles in a 
single series. 
1. Bebbia juncea (Benth.) Greene, Bull. Calif. Acad. 1: 179. 1885. 
Carphephorus junceus Benth. Bot. Voy. Sulph. 21. 1844. 
Type Locality: Magdalena Bay, Lower California. 
Rance: Southern New Mexico to California and Mexico. 
New Mexico: Parkers Well (Wooton). Sandy plains, in the Lower Sonoran 
Zone. 
125. ARNICA L. 
Erect simple-stemmed perennials with opposite keaves and long-pedunculate heads 
of yellow flowers; rays yellow, showy; involucre campanulate, the narrow bracts in 
1 or 2 series, nearly equal; receptacle flat; achenes linear, pubescent; pappus a single 
series of slender barbellate bristles. 
KEY TO THE SPECIES. 
Leaves cordate-ovate, the cauline ones petiolate.................... 1. A. cordifolia. 
Leaves lanceolate, oblanceolate, or lance-oblong, the cauline ones 
8 2. A. foliosa, 
1. Arnica cordifolia Hook. Fl. Bor. Amer, 1: 331, 1834. 
Type Locauity: “Alpine woods of the Rocky Mountains on the east side.”’ 
Rance: British America to California, Nevada, and northern New Mexico. 
New Mexico: Chama; Winsor Creek. Shaded hillsides, in the Canadian Zone. 
2. Arnica foliosa Nutt. Trans. Amer. Phil. Soc. n. ser. 7: 407. 1841. 
Tyre Locauiry: “On the alluvial flats of the Colorado of the West, particularly 
near Bear River of the lake Timpanagos.”’ 
RANGE: Montana to northern New Mexico. 
New Mexico: Tunitcha Mountains; Chama. Wet ground, especially meadows 
about lakes and streams, in the Transition Zone. 
This is very common in the Tunitcha Mountains, where it covers large areas of 
wet meadow to the exclusion of almost everything else. About Chama onky two 
or three plants were seen. , 
126. SENECIO IL. 
Tall or low, annual or perennial herbs with alternate, sessile or petiolate, entire 
to pinnatifid or subpinnate leaves and solitary, racemose, or corymbose heads of 
yellow flowers; heads radiate or discoid, many-flowered; involucre cylindric to cam- 
panulate, of few or many erect connivent bracts, sometimes with a few smaller ones 
at the base; receptacle flat, naked; pappus of numerous soft capillary bristles, 
