( 409 ) 
Leaves broadly obovate, usually denticulate; capsule 6 mm. broad, 
neither crested nor horned. 13. C. verrucosus. 
Leaves opposite. 
Horns of capsules dorsal, spreading, slender; leaves usually toothed, often 
concave, tomentose to nearly glabrous above. 
14. C. vestitus. 
Horns near the summit, erect. 
Leaves pungently toothed; horns stout. 
Twigs and leaves glabrous or sparsely pubescent, the latter 
prominently toothed and holly-like; flowers blue. 
15. C. Jepsoni. 
Twigs and under surface of leaves tomentose, the latter with 
shallow teeth; flowers white. 
Venation on under surface of leaves hidden by the dense 
tomentum; leaves strongly revolute. 
16. C. crassifolius. 
Venation distinct through the fine tomentum; leaves not 
revolute. 16a. C. crassifolius planus. 
Leaves entire; canescent below, with short, incurved hairs; horns 
rather slender. 17. C. cuneatus. 
1. Ceanothus integerrimus puberulus (Greene). 
Ceanothus puberulus Greene, Leaflets 1: 66. 1904. 
Type locality: ‘‘Altitude of 4000 and 5000 feet in the San Ber- 
nardino Mountains.” 
Distribution: Frazier Mountain southward to the San Jacinto 
Mountains. ‘Transition. 
This southern plant differs from the typical form in being pubes- 
cent on the upper surface of the leaves, since this character is not 
constant its true relation seems best expressed in the varietal rank. 
Specimens examined: Goodnough Meadow, Dudley 4755; can- 
yon near Elizabeth Lake, Dudley 4419; Liebre Mountain, Abrams 
€§ McGregor 369; Mount Gleason, Elmer 3595; Mount Wilson, 
Grant 149; North Baldy, altitude 1800 meters, Abrams & Mc- 
Gregor 585; Lytle Creek Canyon, 1740 meters, Hall, May, 1899; 
Caiion Diablo, Parish 4693; Huston’s Flat, Shaw & Illingsworth 
157; Cleghorn Canyon, Abrams t9 McGregor 712; Hathaway Flat, 
Abrams &§ McGregor 810; summit of Mount Santiago, Abrams 
1843. 
2. CEANoTHUS PALMERI Trelease, Proc. Calif. Acad. 
Te b: 109: > 2886. 
Ceanothus spinosus Palmeri K. Brand. Proc. Calif. Acad. II. 4: 
185. 1894. 
