(379) 
Willow Springs, Abrams &% McGregor 426; Lone Pine Canyon, 
San Gabriel Mountains, Abrams &§ McGregor 662. 
11. CHAMAEBATIA. 
I. CHAMAEBATIA AUSTRALIS (Brandegee) Abrams, Bull. Torr. 
Bot. Club 84: 623. 1907. 
Chamaebatia foliolosa australis Brandegee, Bot. Gaz. 27: 447. 
1899. 
Type locality: “La Gruella, Lower California,” and ‘Mt. 
Miguel near San Diego.” 
Distribution: Mount Miguel, southern San Diego County, south- 
ward through the foothills of northern Lower California. Upper 
Sonoran. 
Specimens examined: San Miguel Mountain, Chandler 5214. 
iz; .ROSA, Rose; 
Foliage more or less glandular-pubescent or puberulent. 
Infrastipular spines present, these and the prickles recurved or reflexed. 
Leaflets canescent beneath with a close short-villous pubescence. 
1. °R. Aldersoni. 
Leaflets scarcely paler beneath, somewhat glandular-pubescent. 
2. R. californica. 
Infrastipular spines wanting; prickles often numerous, slender and 
straight. 3. R. gratissima. 
Foliage glabrous; infrastipular spines wanting; prickles straight. 
4. R. mohavensis. 
1. Rosa AtpErsoni Greene, Pittonia 5: 110. 1903. 
Type locality: “Witch Creek, San Diego Co., California.” 
Distribution: This species is closely related to R. californica 
and may be merely a canescent form of it, but it seems to occupy 
a more or less distinct geographic area. The plants I have 
referred to this species grow in the higher parts of the chaparral 
and in the Transition Zone of the San Bernardino and the Cuiamaca 
Mountains. 
Specimens examined: West Fork of Deep Creek, San Ber- 
nardinoMountains, Abrams tf McGregor 714; Strawberry Peak, 
San Bernardino Mountains, Abrams 2054; Witch Creek, Cui- 
amaca Mountains, Alderson, June, 1894; Pine Valley, Mearns 
3984. 
