458 RHAMNACEAE 



Locs. — Coast Ranges: Bluff Creek, Klamath River, n. Humboldt Co., Chandler 1453; Knee- 

 land Prairie, Humboldt Co., Tracy 3037; Martins ranch, South Fork Trinity River, Jepson 2001; 

 Grasshopper Peak, Humboldt Co., Jepson 1G,480 ; Briceland, s. Humboldt Co., Jepson 2206; 

 Leggett Valley, nw. Mendocino Co., Jepson 9478; Willits, Mendocino Co., Jepson 9425; Mill 

 Creek ranger s'ta., n. Lake Co., Ilellcr 13,246; Miller Canon, Vaca Mts., Jepson 13,972; Tomales 

 Bay, Marin Co., Jepson 2462; Berkeley, Jepson 5624; Oakland Hills, Jepson 6813; Mt. Diablo, 

 M. S. Bal-er; Mountain Lake, San Francisco, Jepson 13,976 ; Black Mt., Santa Clara Co., C. F. 

 Baker 1706; Monterey, Brewer 639; San Luis Obispo, Jilmer Awl. S. Cal. : San Marcos Pass, 

 Santa Inez Mts., Jepson 12,140 ; Santa Barbara, Dunn; Ojai Valley, Ventura Co., S. F. Peclcham; 

 Santa Monica, Davy 2727; Mt. Wilson, C. E. Hutchinson; Rubio Canon, San Gabriel Mts., Peir- 

 son 108; Waterman Canon, San Bernardino Mts., Parish 11,409; Strawberry Valley, San Jacinto 

 Mts., Jepson 2265. 



Var. tomentella B. & W. Gray Coffee-berry. Leaf -blades 2 to 3 inches long, elongated, 

 oblong, varying to elliptic, obscurely serrulate or entire, abruptly acute or acuminate, usually 

 conspicuously feather-veined, finely tomentose on the under side or even silvery, typically very 

 olive-like; peduncles M> to 1^4 inches long. — Dry foothills, 500 to 5000 feet: Sierra Nevada foot- 

 hills from Shasta Co. to Kern Co.; inner Coast Ranges from Tehama Co. to western Fresno Co.; 

 Mohave Desert ; south to coastal Southern California. Far south to Lower California. 



Locs. — Sierra Nevada foothills: Olinda, Shasta Co., BlanUnship; Little Chico Creek, Butte 

 Co., R. M. Austin; Oroville, Ilcller 10,753; Grass Valley, Ecller 8104; Fair Oaks, Sacramento 

 Co., Ramaley 11,250; Jackson, Amador Co., Michener tj- BioJctti; Angels Camp, Calaveras Co., 

 Jepson 10,421 ; Columbia, Tuolumne Co., Jepson 6442 ; Knights Ferry, e. Stanislaus Co., Sanford; 

 Coulterville, Mariposa Co., Jepson 13,981; Orosi, Tulare Co., S. J. BrubaTcer; Bodfish, Kern 

 River, W. P. Taylor. Marysville Buttes: South Peak, Jepson 13,979. Coast Ranges: Red Bluff, 

 BoldenwecTc ; Cortina Valley, sw. Colusa Co., Jepson 16,746; Samuels Sprs., Napa Co., Jepson 

 13,980; Calaveras Valley, Alameda Co., A. W. Sampson; Greeninger Creek, w. of Gilroy, Jepson 

 9690; Lyon Creek, w. Fresno Co., S. C. Lillis. S. Cal.: Providence Mts., T. Brandegee ; San 

 Emigdio Canon, sw. Kern Co., Davy 2030; Manzana, Antelope Valley, Davy 2536; Mt. Pinos, 

 J. Grinnell; Rock Creek, San Gabriel Mts., Peirson 110; Santa Rosa Mts., Munz 5817; Henshaw 

 Dam, Palomar Mt., Wiggins 3126; Warners ranch, e. San Diego Co., Parish 1424; betw. Campo 

 and Buckman Sprs., San Diego Co., J. T. Howell 2976. 



Var. crassifolia Jepson. Shrub 3 to 8 feet high; branchlets and petioles very stout; leaf 

 blades oval or elliptic, obtusish at apex, or sometimes shortly acute, rounded or obscurely cordate 

 at base, very thick and leathery, very prominently parallel-nerved beneath, 1% to 3 inches long, 

 1 to nearly 2 inches wide, finely tomentulose below, microscopically so above ; leaf -scars promi- 

 nent. — Inner North Coast Range foothills from eastern Mendocino Co. and Colusa Co. to Tehama 

 Co., in the chaparral: Covelo, ne. Mendocino Co., W. P. Taylor; Crum Hill, Leesville, Colusa Co., 

 J. D. Coif man; Mud Flat, w. Glenn Co., Eeller 11,534; Paskenta (w. of), W. W. MacUe. 



Var. occidentalis Jepson. Foliage yellowish ; leaf-blades oval or elliptic, obtuse or shortly 

 acute, entire, 1^2 to 2% inches long, glabrous; peduncles 1 to 6 lines long. — Northern Humboldt 

 Co., California, to Josephine Co., Oregon : betw. Three Creeks and Willow Creek, n. Humboldt Co., 

 Jepson 1977; Red Hill, Del Norte Co., Jepson 2903; Gasquct, Del Norte Co., M. S. Baker 218. 

 A well-marked local form. 



Var. viridula Jepson. Leaf -blades obovate or oblong, obtuse or very shortly acute, % to 1% 

 inches long, dark green above, velvety beneath to the touch but scarcely to the eye ; umbels sessile 

 or shortly peduncled. — Desert slopes, Inyo Co., 7500 feet. 



Refs. — Rhamnus californica Esch. Mem. Acad. St. Petersb. ser. 6, 10:285 (1826), type 

 loc. middle California coast, Eschscholtz ; Curran, Proc. Cal. Acad. ser. 2, 1:252 (1888) ; Jepson, 

 Fl. W. Mid. Cal. 254 (1901), ed. 2, 252 (1911), Man. 614, fig. 615 (1925). Var. tomentella 

 B. & W. Bot. Cal. 1:101 (1876) ; Jepson, Fl. W. Mid. Cal. 254 (1901), ed. 2, 252 (1911), Man. 

 615 (1925). E. tomentella Benth. PI. Hartw. 303 (1897), type loc. Sierra Nevada foothills, 

 Harttceg 347, probably on the excursion along the Yuba River (cf. Erythea 5:55). E. cuspidata 

 Greene, Lflts. 1:64 (1904), type loc. Tehachapi, Greene. Var. crassifolia Jepson, Man. 615 

 (1925), type loc. Bear Valley (ridge w.), Colusa Co., Jepson 8974. Var. occidentalis Jepson, 

 Man. 615 (1925). E. occidentalis Howell, Pae. Coast PI. Coll. 1887, type loc. Waldo, s. Ore., 

 Howell; Greene, Pitt. 2:15 (1889). Var. viridula Jepson, Man. 615 (1925), (by printer's error 

 "virida"), type loc. Cottonwood Creek, Inyo Co., Jepson 5086. 



2. R. rubra Greene. Sierra Coffee-berry. Shrub 2 to 5 feet high, with red- 

 dish twigs; leaf -blades oblong, finely serrulate, pale or yellowish green, glabrous, 

 % to iy2 inches long; umbels sessile or nearly so; berries obovoid or somewhat con- 

 tracted at base, 2 to 3 lines long. 



Mountain slopes, 2200 to 7000 feet : Siskiyou Co. ; Sierra Nevada from Shasta 

 and Modoc Cos. to Fresno Co. June. The leaves are sometimes remarkably 

 similar to the arid chaparral form of Prunus emarginata Walp. 



