(474) 
Type locality: “Rocky Mountains of Colorado in the region of 
South and Middle Park,”’ according to Gray (Proc. Am. Acad. 8: 
642). 
Distribution: A Rocky Mountain species of rather high altitudes 
which occurs on Alamo Mountain, altitude 2100 meters, eastern 
Ventura County, according to Hall (Univ. Calif. Pub. Bot. 3: 
62. 1907). 
8. HAZARDIA. 
1. Hazarpia squarrosa (Hook. & Arn.) Greene, Erythea 2: 112. 
1894. 
Aplopappus squarrosus Hook. & Arn. Bot. Beechey 146. 1833. 
Type locality: Probably Monterey. “Collected at San Fran- 
cisco, and a few at Monterey Bay” is the general locality given 
at the head of the list of plants in which this species appears. 
Distribution: Monterey, southward to San Diego, and on the 
islands off the coast of southern California. Upper Sonoran. 
Specimens examined: Mountain Drive, near Santa Barbara, 
Eastwood 201; Abrams 4147; Los Angeles, Hasse, Oct., 1887; 
Elysian Park, Abrams 4180; San Antonio Canyon, Baker 3732; 
San Diego, Brandegee, Sept. 13, 1902 (Baker 3426); San Ysabel, 
Hayes 305. 
9. BACCHARIS. 
Achenes 10-nerved; leaves not willow-like. 
Pappus of fertile flowers conspicuously elongating in fruit, flaccid. 
Leaves except some of the uppermost not linear. 
Leaves obovate, sessile; pappus, in fruit, about 8 mm. long. 
1. B. pilularts. 
Leaves of branches oblanceolate or oblong, those of the branch- 
lets linear; heads somewhat nakedly paniculate. 
2. B. Emoryi. 
Leaves all linear, rigid, those of the strongly striated branchlets 
sparse and minute; involucre of male flowers 3-4 mm. long. 
3. B. sarothroides. 
Pappus of fertile flowers rather rigid and scanty, not elongated in age; 
branches broom-like. 4. B. sergiloides. 
Achenes 5-nerved or rarely 4-nerved. 
Leaves willow-like, glabrous and sometimes glutinous. 
Involucre 5-6 mm. long; bracts stramineous. 5. B. glutinosa. 
Involucres 8 mm. long; bracts tawny. 6. B. viminea. 
Leaves pubescent, linear-oblong, obtuse, acutely serrate. 
7. B. Plummerae. 
