672 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
Branches smooth or nearly so, scabrous; leaves crowded or 
fasciculate; heads racemose or virgate.......-.... 3. B. pleronioides. 
Branches striate-angled, glabrous; leaves not crowded; 
heads paniculate or corymbose, 
Leaves linear, entire, 25 mm. long or usually less; 
plants broomlike in general appearance. ...... 4. B. sarothroides, 
Leaves oblong to obovate, mostly toothed, usually 
more than 30 mm. long; plants not broomlike, 
Fertile heads hemispheric, 5 to 10 mm, broad... 5. B. salicina. 
Fertile heads cylindric or long-campanulate, 3 to . 
5 mm. broad. .............----+--0------ 6. B. emoryi. 
1. Baccharis bigelovii A. Gray in Torr. U. 8. & Mex. Bound. Bot. 84. 1859. 
Type Locauity: ‘‘Puerto de Paysano,’’ Sonora. 
Range: Southern Arizona and New Mexico to northern Mexico. 
New Mexico: Carpenter Creek; West Fork of the Gila. Transition Zone. 
2. Baccharis glutinosa Pers. Syn. Pl. 2: 425. 1807. 
Type Locauity: Chile. 
RANGE: Colorado to western Texas and California, south to Mexico, Central America, 
and South America. 
New Mexico: Mangas Springs; North Percha Creek; Socorro; Redrock; Deming; 
Mesilla Valley; Organ Mountains; between Tularosa and Mescalero. River valleys 
and wet ground, in the Lower Sonoran Zone, 
One of the most common shrubs of the river valleys, preferring land that is some- 
times inundated. It becomes a meter high or even more. Along the banks of the 
Rio Grande it covers large areas. 
3. Baccharis pteronioides DC. Prodr. 5: 410. 1836. 
Type Locauity: “In Mexico inter Tampico et Real del Monte.” 
Rance: Southern New Mexico and Arizona to Mexico. 
New Mexico: Mangas Springs; Kingston; Dog Spring; Organ Mountains; Queen. 
Dry hills, in the Upper Sonoran Zone. 
4. Baccharis sarothroides A. Gray, Proc. Amer. Acad. 17: 211. 1882. 
Tyre Locauity: ‘Southern borders of California, San Diego County, near the old 
Mission station, the boundary monument, etc.” 
RanaeE: Southern California to southwestern New Mexico. 
New Mexico: Near Carlisle (Wooton). Along streams. 
5. Baccharis salicina Torr. & Gray, Fl. N. Amer. 2: 258. 1842. 
Baccharis salicifolia Nutt. Trans. Amer. Phil. Soc. n. ser. 7: 337, 1841. 
Tyre Locauity: ‘‘ Banks of the Arkansas.”’ 
Rance: Colorado and western Kansas to New Mexico and Texas. 
New Mexico: Fruitland; Laguna; Albuquerque; San Juan. River valleys and 
banks of streams, in the Upper Sonoran Zone. 
6. Baccharis emoryi A. Gray in Torr. U. 8. & Mex. Bound. Bot. 83. 1859. 
TYPE LocALITy: On the Gila River, Arizona. 
Ranae: Colorado and New Mexico to Arizona and California. 
New Mexico: Roswell; Garfield. Along streams, in the Lower Sonoran Zone. 
7. Baccharis wrightii A. Gray, Pl. Wright. 1: 101. 1852. 
Type Locatity: Valley of the Limpio, western Texas. 
RanGeE: Kansas and Colorado to Arizona, western Texas, and Mexico. 
New Mexico: McCarthys Ranch; Sierra Grande; Nara Visa; Las Vegas; Raton; 
Albuquerque; Socorro Mountain; San Augustine Plains; Aden; between Tularosa 
and Mescalero; Gray. Plains and dry hills, in the Upper Sonoran Zone. 
