STUDIES IN CEANOTHUS. 211 



per, Dr. Parry, probably from age and feebleness, did 

 not ascend the mountains on the slopes of which he de- 

 scribed species of Ceanothus, and was therefore often 

 misled as to their range of variation, C . diver gens was 

 described from low elevations but higher up and on the 

 northward slopes of the same and the adjacent Cobb 

 Mountain it grows in just as flat squaw-mats as are found 

 in the Sierra Nevada, though the fruit is much smaller 

 and the leaves more spinose. No. 73, Cobb Mountain, 

 Lake County; No. 74, Mt. St. Helena, Napa Count}-. 

 No. 77 is a h3^brid with C . ciineatiis. 



Var. piNETORUM (Coville). 



Ceanothus pinetorum sp. nov. Plate vi. Plaut of the sub-genus Ce- 

 rastes, 0.6 to 1 meter bigh, denselj' branched; branches divaricate, dark 

 brownish red when young; leaves opposite; stipules at maturity nearly as 

 thick as broad, ovate in outline, acute, divaricate, reflexed, from 2 or 3 to 

 5 mm. long, light brown, glabrous, spongy, and when old powdery within; 

 petiole 1 to 2 mm. long; blade broadly oblong, rounded at base and apex, 

 0.5 mm. thick, commonly 12 to 16 mm. long, glabrous or with traces of 

 early pubescence, spinulose-dentate, with 4 to 6 teeth on each side, the 

 under surface venose-reticulate, with minute white areoLo?; flowers not col- 

 lected; friiiting peduncle 0.. 5 to 1.5 cm. long, about 2 mm. thick; fruiting 

 pedicel of about the same length, somewhat slenderer; fruit 7 to 9 mm. 

 long in addition to the crests, these about 3 mm. long; seed oblong, about 

 4 mm. in length, black and shining at maturity. — Tyjje specimen in the 

 United States National Herbarium, No. 1738, Death Valley Expedition; 

 collected August 30, 1891, near Lyon Meadow, Sierra Nevada, Tulare 

 County, California, by Frederick V. Coville. — The species was seen only 

 in the forests of Plnus jeffreyi, on the head waters of Kern Kiver, in the 

 valley that lies between the two main crests of the Sierra Nevada. The 

 very large fruit, the form of the leaves, and the erect habit of the plant 

 distinguish it from all the species of the sub-genus. In our specimens 

 the conspicuous enlargement of the stipules is remarkable.— F. V. Coville 

 in Contr. U. S. Nat. Herb., vol. iv, 80 (1893). 



With this is included C. Jc^souii* which differs in its 

 more undulate leaves and less cork}- stipules. Besides 



** Ceanothus Jepsonii. Low bush r^'^yztZ^?/ erec^ and intricately branch- 

 ing, 2-4 ft. high, the branches and bran chiefs short and very stout, divar- 

 icate, puberulent when young: leaves | in. long, hard-coriaceous, ohlong. 



