200 CALIFORNIA ACADEMY OF SCIENCES. 



San Pedro Martir. Nos. 2023 and 2028, Parish, from 

 San Bernardino County, is either a broader-leaved form 

 or a hybrid. 



17. Ceanothus diversifolius Kell. C. decum- 



bens* 



Ceanothus diversifolius — Kellogg. Branches both old aud youug, pe- 

 duucles, petioles aud leaves, densely villous; lateral branches divaricate, 

 slightly nodding. Leaves obloug-ovate or elliptical-ovate, obtuse, or sub- 

 acute, 3-nerved, in most of the young leaves the lateral nerves are obscure; 

 lamina thin membranous, densely villous, bluish green and slightly 

 glabrous beneath, shorter villous pi;bescent above, not shining, retuse- 

 mucronate-dentate; teeth somewhat cuspidate, glandular, petioles about ^ 

 the length of the leaf. Flovrers in long axillary, simple racemes, some- 

 what pendant, flowers mostly crowded into a corymbose cluster at the 

 extremity on pedicels of -J to | of an inch long, colored racemes 2 to 3 

 inches long; scarcely leafy at the base, although a few scales are observed, 

 and occasionally a very minute leaf; flower buds covered with small pu- 

 bescent bracts, at length deciduous, — calyx more infolded, and less cowled 

 than usual in this genus, giving the flower an angular or ribbed appear- 

 ance, style exserted, united to the top, stigma barely divided, branches 

 green, colored on the sunny side, and studded with small flat glandular 

 warts [Dr. K. exhibited specimens and a drawing of a species of Ceanothus 

 from Placerville, E.W. Garvett].— Proc. Cal. Acad, i, 58 (1855); Ed. 2, p. 57. 



Dr. Kellogg's name is much the older, but his descrip- 

 tion giving no indication of its decumbent character, caused 

 it to be referred to a different species. There is no doubt 

 of their identity both on account of the locality and from 

 the colored drawing which Dr. Kellogg made, according 

 to his custom, of his type. No. 44, Dutch Flat, Placer 

 County; No. 45, Calaveras Big Tree Grove, both from 



*Ceanothus decumbkns. Slender, trailing, hirsutely ijubescent with 

 spreading hairs; leaves rather thin, flat, \-\l inches long, elliptic-oblong, 

 somewhat cuueateat base, obtuse or acutish, glandular-serrate, the greenish 

 glands iTsually stipitate; flowers in short dense shortly pedunculate ra- 

 cemes, about ^ inch long or less. — Frequent in the mountains of Central 

 California, from the Mariposa Grove northward; collected by Fremont 

 (n. 357), Bigelow {C. sorediatus of Whipple's Keport), Stillman, Brewer, 

 (n. 1624), Bolander (n. 6331), and Torrey (n. 69).- Sereno Watson in Proc. 

 Am. Acad, x, 335 (1875). 



