678 CORNACEAE 



From the high Sierra Nevada species, Cornus stolonifera, Cornus californica is differentiated 

 only by the character of the pubescence: the former has short straif^ht appressed hairs on the 

 leaves, the latter has longer curved or loosely spreading hairs. This difl'ercnce, by reason of 

 intergrade forms, is sometimes difficult to establish. The zonal distribution of Cornus stolonifera 

 in California is Transition and Canadian, while that of Cornus californica is chiefly the lower 

 margins of the Transition. This geographic difference is something, but, nevertheless, the 

 specific concept of our various Cornus species were doubtless more consistent and better served 

 if C. californica were subordinated to C. stolonifera as a variety. 



Locs. — Sierra Nevada: Delta, Shasta Co., Jcpson 6180; Pioneer sta., North Fork Yuba Eiver, 

 Sierra Co., Jcpson 10,816; Bear Valley, Nevada Co., Jepson 14,144; Murphy, Calaveras Co., 

 Davy 1540; Lake Eleanor, A. L. Grant 1243; Benson Lake, Tuolumne Co., Jepson 4516; Pine 

 Eidge, Fresno Co., Hall ^- Chandler 77 ; Giant Forest, K. Brandegee. Delta region: Haas Slough, 

 e. Solano Co., Jepson 14,145; Middle River, lower San Joaquin Co., Jepson 5695. Coast Ranges: 

 Crescent City, 27. E. Parks; Etna Creek, Siskiyou Co., Butler 86 ; North Fork Coffee Creek, Trinity 

 Co., Alexander if- Kellogg 215; Willow Creek, Trinity River Valley, Tracy 5949; Cahto, Mendo- 

 cino Co., Davy 6623; Willits, Jepson 2492; Inverness, Marin Co., Jepson 1713; Berkeley, Jepson 

 8194 ; Oakland Hills, Jepson 6212 ; Saratoga, Davy 274 ; Fremont Peak, San Benito Co., Elmer 

 4905; Carmel River near Carmel, Patterson 4" Wilts; Arroyo Grande, San Luis Obispo Co., 

 Brewer 434. Southern California: Santa Maria, Ida Blochman; San Miguelito Creek, Lompoc, 

 Ewan 7913 ; Cienega (Dav. & Mox. Fl. S. Cal. 267) ; Oak Knoll, Los Angeles, Braunton 652 ; Mescal 

 Creek, n. side San Gabriel Mts., Peirson 3186; Deep Creek, San Bernardino Mts., Hall 1369; 

 Strawberry Peak, San Bernardino Mts. (Bull. N. Y. Bot. Gard. 6:429); Mt. San Jacinto, Hall 

 2233 ; Palomar Mt., Parish 4465 ; Julian, San Diego Co., T. Brandegee. 



Var. pubescens Mcbr. Cymes shaggy-pubescent. — Tulare Co. (Marble Fork Kaweah River, 

 Jepson 660) ; Santa Cruz; Mendocino Co. North to Oregon. 



Refs. — Cornus californica C. A. Mey. Bull. Phys.-Math. Acad. Petersb. 3:373 (1845), type 

 from Cal.; Jepson, Man. 733, fig. 715 (1925). Svida californica Abrams, Bull. N. Y. Bot. Gard. 

 6:429 (1910). C. pubescens x&t. californica C. & E. Bot. Gaz. 15:37 (1890) ; Jepson, Fl. W. Mid. 

 Cal. 361 (1901), ed. 2, 305 (1911). Var. pubescens Mcbr. Contrib. Gray Herb. 56:54 (1918) ; 

 Jepson, Man. 733 (1925). C. pubescens Nutt. Sylva 3:54 (1849), type loc. "borders of the 

 Oregon and Wahlamet", that is, Columbia and Willamette rivers, Nuttall. C. sericea var. occi- 

 dentalis T. & G. Fl. 1:652 (1840), "Northwest Coast", Douglas, Tolmie, Scouler, and San Fran- 

 cisco, Chaiimso. C. occidentalis Gov. Contrib. U. S. Nat. Herb. 4:117 (1893). C. torreyi Wats. 

 Proc. Am. Acad. 11:145 (1876), "central Cal.", Torrey. C. greenei C. & E. Bot. Gaz. 15:36 

 (1890), the locality unknown. 



2. C. stolonifera Michx. American Dog-berry. Shrub 2 to 10 feet high, 

 usually stolonif erous ; herbage, especially the under side of the leaves, appressed- 

 hirsutulose; leaf -blades ovate or ovate-lanceolate, shortly acute, entire, 1 to 5 

 inches long ; cymes 1 to 2 inches w^ide ; petals dull white, linear, 2 lines long ; drupe 

 subglobose, white to bluish, 2 to 3 lines long. 



Montane slopes and canons, mostly (3000 or) 6000 to 7200 feet : Sierra Nevada, 

 mainly east side or easterly valleys, from Tulare Co. to Modoc Co. North to Can- 

 ada, east to Arizona and Virginia. July. 



Locs. — Lewis Camp, Kern River Canon, Jepson 975; Sequoia Creek, Tulare Co., W. Fry 5; 

 Tamarack Creek, Fresno Co., Wieslander; Lake Merced, Merced River, Jepson 3204; Convict 

 Creek, Mono Co., Almeda Nordyhe; Deadman Creek, Middle Fork Stanislaus River, Jepson 6562; 

 Glen Alpine Canon, Eldorado Co., Abrams 12,707; Donner Pass, Heller 7045; Stirling, Butte Co., 

 Heller 10,817 ; Mt. Bidwell, ne. Modoc Co., Jepson 7906. 



Refs. — CoKNUS STOLONIFERA Michx. Fl. 1:92 (1803), "along rivers and brooks, Canada and 

 New England"; Smiley, Univ. Cal. Publ. Bot. 9:274 (1921). 



3. C. glabrata Benth. Brown Dogwood. Shrub 5 to 12 (or 22) feet high, 

 with nearly or quite glabrous twigs ; leaf -blades ovate or oblong, acute at each end 

 or shortly pointed at apex, 1^/4 to 2 inches long, green on both faces, often reddish- 

 brown in age, obscurely pubescent with short scattered appressed hairs ; petioles 1 

 to 3 lines long; flowers many in small cymes; petals clear white; style slightly 

 pubescent ; drupe globose, the flesh whitish or bluish ; stone little compressed and 

 not at all or obscurely furrowed. 



Stream bottoms, borders of swamps and bases of low hills, often forming 

 thickets, 5 to 4400 feet : Sierra Nevada foothills from Shasta Co. to Tulare Co. ; 



