Pomona College Journal of Economic Botany 309 



Arctostaphylos bicolor — Shrub 1-2 m. high. Frequent in the foothills of western 

 San Diego County, and also reported from Catalina. 



Amorpha californica (Wild Indigo) — Shrub 1-3 m. high. Common in the chap- 

 arral belt. 



Berheris dictyota — Shrub, 4-12 dm. high, with blue-black berries and attractive 

 flowers. P'ound on the dry ridges near Glendale, Switzer's Trail and the 

 San Gabriel mountains. 



Berheris nevinii — Shrub, 2-3 m. high. Racemes are 4-7 flowered. 



Ceanothus (California Lilac)— Common desert shrub witli small but very showy 

 flowers, generally fragrant and white, blue or purple. 



Ceanothus integerrimus — Tall, loosely branching and sometimes arborescent. 

 Flowers blue, varying to white. Frequent in the pine belt of all our moun- 

 tains, and in the uppermost portions of the chaparral belt. 



Ceanothus spinosus — Tall shrub or somewhat arborescent. Flowers pale blue. 

 Found in the Santa Monica and Santa Ana mountains and north to Santa 

 Barbara, in the canyons. 



Ceanothus divaricatus — Shrub 1-2 m. high, flowers pale blue. Very common in 

 the chaparral belt. 



Ceanothus tomentosus — Shrub 2-4 m. high, flowers deep blue, or rarely white. 

 Occasional in the chaparral belt of San Gabriel, San Bernardino and Cuya- 

 maca mountains at an elevation of 3000-5000 feet. 



Ceanothus sorediatus — Shrubby or somewhat arborescent, 2-4 m. high, flowers 

 deep blue. 



Ceanothus hirsutus — Shrubby or arborescent, 3-5 m. high, flowers deep blue to 

 purplish. Frequent in the chaparral belt of the San Gabriel mountains, at 

 an elevation of 2500-4.';00 feet. 



Ceanothus macrocarpus — Shrubby, 2-3 m. high. Frequent in the Santa Monica 

 and Santa Ana mountains. 



Ceanothus cuneatus — Much resembles . the last, but the branches are more rigid. 

 Occasional along the southern rim of the San Gabriel and San Bernardino 

 ranges. 



Ceanothus crassifolius — Shrub 2-3 m. high. Common in the chaparral belt of 

 all our mountains. 



Cercocarpus betulaefolia (Mountain Mahogany) — Shrub or small tree, 2-.'5 m. high. 

 Flowers in March, fruit in July. 



Cupressus macrocarpa (Monterey Cypress) — Tall tree attaining a height of 100 

 feet. 



Diplacus glutinosus (Common Yellow Monkey Flower)— Often called Miinulus 

 glutinosus, but incorrectly so. 



