■264 EHAilNACE^. 



1. R. Californica Eseh. Coffee Berry. Shrub, commonly 4 

 or 5 ft. high, evergreen in our district; one-year-old branchlets reddish 



-or brown; leaves oblong, obtuse or acute, mostly IJ to 2 in. longj 

 flowers mostly perfect, 4 to 5-merous, on short pedicels, in umbellate 



^clusters, the clusters peduncled; calyx 2 to 2J lines broad; its lobes 

 triangular-lanceolate; petals minute, cucullate, deeply emarginate; 

 fruit a black berry, globose or oval, 3 to 4 lines in diameter. 



Common everywhere In the Coast Ranges and at low altitudes in 



;the Sierras. June-July. Fr. Sept.-Oct. 



Var. tomentella Brew. & Wats. Twigs tomentose, reddish; 



.leaves yellow- or white-tomentose beneath; peduncles commonly 



.exceeding the petioles. — Santa Cruz Mountains; Mt. Hamilton; 



.Sierra Foothills and eastward. 



2. R. Purshiana DC. Cascara Sagrada. Small tree; leaves 

 thinnish, deciduous, elliptic-oblong, obtuse or slightly cordate at base, 

 obtuse or abruptly blunt-pointed at apex, serrulate, mostly 8 to 6 in. 

 long; petioles tomentulous; flowers 5-merous; carpels 3. 



Point Reyes ace. to Davy; scarcely known in our region, more 

 common in northern California. 



3. R. crocea Nutt. Evergreen and glabrous low shrub J to 2 or 

 3 ft. high, the branches and branchlets slender, flexible and rather 

 long; leaves often fascicled, rather narrowly elliptic, 1 to 4 lines long, 

 serrulate, green above, yellowish beneath, distinctly petioled but the 

 petioles often less than J line h'ng; flowers apetalous, mostly polyga- 

 mous; sepals and stamens 4; fruit 2 or 3 lines long, red. 



Mayacamas Mountains (east of Napa Valley) and southward near 



.the coast: Oakland, etc. Feb. -May. 



Yar. ilicifolia Greene (R. ilicifolia Kello.sjg). Somewhat arbo- 



.rescent with a distinct trunk, or the stems several and clustered, 5 to 

 10 ft. high; branchlets shnrt, ri.srid and rather stout; leaves oval, 



,flrm-coriaceous, green above, yellowish brown or gulden beneath, 

 larger than in the type (7 to 10 lines long), spinulose-dentate; sepals 

 and stamens frequently 5; fruit bright red, ovoid, 2J lines long. — 

 Inner Coast Ran.ges (Miller Caiion, Vaca Mountains, but rare); 

 common in Mitchell Canon, Mt. Diablo; well known southward. 

 Fruiting in Sept. 



2. CEANOTHUS L. Mountain Lilac. 

 Shrubs or small trees, with petioled leaves, the branchlets often 

 divaricate and rigid, sometimes spinescent, and the small but showy 

 flowers in thyrses or cymes. Calyx S-lobed, the lobes acute, incurved; 

 the lower part adnate with the thick disk to the lower part of the 

 3-celled ovary. Petals 5, hooded by the inflexion of the acuminate 

 apex, and with lona: claws. Stamens 5, fllaments filiform, long- 

 Bxserted. Style 3-cleft. Fruit subglobose, 3-lobed, becoming dry 

 and separating into. its 3 carpels, these plastically dehiscent along the 

 inner edge and dispersing the seeds. Seeds obovate, convex on the 

 back. (Greek Keanothus, name used by Dioscorides to designate 

 .some spiny plant, applied to this genus of American plants, which 



