572 ONAGRACEAE 



Jepson 14,396; Goncsce Vallcv, riuinjia Co., JlcUcr 8863; Montgomery Creek, Shasta Co., M. S. 

 Inikcr; upper Fall Kivor Vallcv, no. Shasta Co., Jepson 5748; Egg Lake, Modoc Co., M. S. Baker. 

 Groat Vallov: BoUoviow, Madora Co., Jepson 12,905; Stockton, Sanford 182; Vanden, Solano 

 Co., Jepson 9724. Coast Ranges: San Luis Obispo Valley, Summers; Pajaro Hills, Monterey Co., 

 Chandler 463; Black Mt., Santa Clara Co., Elmer 4769; West Berkeley, Greene; Yountville, Napa 

 Co., Jepson 14,406; Ukiah, Jepson 7635; Mt. Ilanna, Lake Co., Jepson 14,392; Ft. Bragg, IF. C. 

 Malhtws; .\sa Boan liidgo, no. Mendocino Co., Jepson 14,399; Whitethorn Valley, sav. Humboldt 

 Co., Traev 5020; Miranda, Humboldt Co., Jepson 12,364; Van Duzen River valley, opposite 

 Buck Mt.,' Trae;/ 2S50 ; Old Shasta, Blankinship ; Hornbrook, Siskiyou Co., E. B. Copeland 3543. 



Var. imbrlcata Greene. Bracts densely imbricated, concealing the capsules; spikes com- 

 monly very long and virgate. — Valleys, 100 to 3500 feet: Sierra Nevada foothills from Amador 

 Co. to Butte Co. ; Sacramento Valley ; Coast Ranges from Santa Cruz Co. to Humboldt Co. There 

 are numerous intergrades to the species. 



Locs. — Sierra Nevada: Pioneer, Amador Co., Hansen 1475; Campbell Hot Sprs., Sierra Co., 

 J. A. DeCou 464; Clear Creek, Butte Co., H. E. Brown 111. Sacramento Valley: Knott's Ldg., 

 Andrus Isl., Jepson 14,408; Lagoon Valley, Solano Co., Jepson 14,402; Hamilton, Glenn Co., 

 Helhr 11,557. Coast Ranges: Santa Cruz, Brewer 811 ; Berkeley Hills, Jepson 14,401 ; Ross Val- 

 lev, Marin Co., Jepson 14,394; Guerneville, Sonoma Co., Condit ; Howell Mt., Napa Range, Jepson 

 14,390; Middleton, Lake Co., M. S. Baker 2235a; Grouse Mt., Humboldt Co., Tracy 4852. 



Var. bipartita Jepson. Herbage pale, villous; petals white, parted into 2 unequal lobes. — 

 North end of !Mt. Hamilton Range. 



Refs.— BoiSDUVALiA DENSIFLORA Wats. ; B. & W. Bot. Cal. 1:233 (1876); Jepson, Fl. W. 

 Mid. Cal. 329 (1901), ed. 2, 276 (1911), Man. 671 (1925). Oenothera densiflora Lindl. Bot. Reg. 

 t. 1593 (1833), type from "northern California", Douglas. B. douglasii Spach, Hist. Nat. Veg. 

 4:385 (1835). Oenothera salicina Nutt.; T. & G. Fl. 1:505 (1840), "the Wahlamet and Walla- 

 wallah", Nvttall. B. salicina Rydb. Bull. Torr. Club 40:62 (1913). B. sparsifolia Nels. & Ken. 

 Muhl. 3:139 (1908), type loc. Maggie Creek, Elko Co., Nev., P. B. Kennedy 644. B. sparsiflora 

 Hel. Muhl. 1:42 (1904), type loc. Conner Lake (lower end). Heller 7021. Var. imbricata 

 Greene, Fl. Fr. 225 (1891), tj-pe loc. San Francisco Bay region; Jepson, Fl. W. Mid. Cal. 330 

 (1901), ed. 2, 276 (1911), Man. 672 (1925). B. imbricata Hel. Muhl. 1:42 (1904). B. densi- 

 flora var. montana Jepson, Fl. W. Mid. Cal. 330 (1901), type loc. Howell Mt., Napa Co., Jepson 

 14,390; ed. 2, 276 (1911) ; Man. 672 (1925). Var. bipartita Jepson, Fl. W. Mid. CaL ed, 2, 276 

 (1911), Man. 672 (1925). B. Mpartita Greene, Erythea 3:119 (1895), type loc. Arroyo del 

 Valle, se. Alameda Co., Greene; Jepson, Fl. W. Mid. Cal. 329 (1901). 



2. B. glabella Walp. Stem commonly branched from the base, 5 to 9 inches 

 high; herbage glabrous or nearly, the foliage bright green; leaf -blades lanceolate 

 to ovate, 5 to 7 lines long; petals 2 lines long, purple; stamens opposite the sepals 

 1^ lines long, the alternate ones shorter (sometimes with nearly sessile anthers) ; 

 capsule almost straight, pointed at apex, 3 lines long; seeds fusiform, about 60. 



Flats and beds of former winter pools, 20 to 5000 feet : cismontane Southern 

 California; Coast Ranges; lower San Joaquin Valley; Sacramento Valley; Modoc 

 Co. East to Nevada, north to British Columbia and Montana. June-Aug. 



Locs. — Coastal S. Cal.: San Diego, T. Brandegee ; Palomar Mt., Mary Spencer; Menifee 

 Valley, Riverside Co., Mum ^ Johnston 5368. Coast Ranges: San Luis Obispo, Palmer 145%; 

 Mt. Eden, Alameda Co., K. Brandegee ; Mt. Hanna, s. Lake Co., Jepson 14,414; Snow Mt., n. 

 Lake Co., T. Brandegee ; Ukiah, Heller; Carlotta, Humboldt Co., Tracy 3978; Dobbyn Creek, 

 Humboldt Co., Tracy 4726. Great Valley: betw. Oakdale and La Grange, Jepson 14,415; Farm- 

 ington, San Joaquin Co., Tracy 5788; Stockton, Sanford 32; Antioch, K. Brandegee ; Little Oak, 

 Vacaville, Jepson 14,416; College City, Colusa Co., Alice King; Pine Creek road sta., Tehama 

 Co., Jepson 12,350. Modoc Co. : Egg Lake, M. S. Baker; Tamarack Flat, Mt. Bidwell, Manning 

 337. In plants of the Great Valley, as just cited, the upper portion of the branches is densely 

 imbricated with leaves which in the fruiting stage conceal the capsules (var. campestris Jepson). 



Refs. — BoiSDUVALiA GLABELLA Walp. Rep. 2:89 (1843); Trel. Rep. Mo. Bot. Gard. 5:117, 

 pi. 23 (1894) ; Jepson, Man. 672 (1925). Oenothera glabella Nutt.; T. & G. Fl. 1:505 (1840), 

 type loc. "plains of the Oregon east of Wallawallah", Nuttall. B. glabella var. campestris Jepson, 

 Fl. W. Mid. Cal. ed. 2, 276 (1911), Man. 672 (1925). B. campestris Jepson, Fl. W. Mid. Cal. 330 

 (1901), type loc. Little Oak, Vacaville, Jepson 14,416. 



3. B. macrantha Hel. Stems 3 to 16 inches high, erect, simple or branched 

 at the base; herbage glabrous below, villous-pubescent above; leaf -blades lance- 

 olate (or the lower oblanceolate), rather remotely serrulate, % to IV2 inches long; 

 petals rose-purple, cuneate, notched at apex, 4 to 6 lines long; stamens opposite 

 the sepals 3i/^ lines long, the alternate ones 214 lines long; capsules villous, slender, 

 straight, 7 to 9 lines long, the apex beak-like; seeds triangular-ovate, 1 line long. 



