EVENING PRIMROSE FAMILY 573 



Moist sandy or gravelly soil, 500 to 1100 feet : Butte and Shasta Cos. May-June. 



Locs. — Table Mt., Oroville, Seller 10,750; Eedding (2 mi. ne.), Seller 14,395. 



Ref. — BoiSDUVAUA MACEANTHA Hel. MuM. 2:101 (1905), type loc. Eedding, Seller 7906. 



4. B. stricta Greene. Stems simple or often diffusely branched from the base, 

 frequently flowering from the very base, 5 to 13 inches high, pilose-pubescent or 

 somewhat canescent; branches often with sparse foliage, or the foliage strict; leaf- 

 blades linear, % to 1^/2 inches long; petals violet or white, 1 line long; capsule 

 slender, attenuate, arcuate-recurved, 6 to 7 lines long, not promptly dehiscent. 



Dry or moist beds of streamlets or former vernal pools, 50 to 5000 feet : San 

 Jacinto Mts.; Sierra Nevada from Tulare Co. to Modoc Co.; Coast Ranges from 

 Monterey Co. to Humboldt Co. North to Washington and Idaho. June-Aug. 



Locs. — S. Cal.: San Jacinto Mts., G. F. EeinJiardt. Sierra Nevada: Giant Forest, Tulare 

 Co., K. Brandegee ; Pine Ridge, Fresno Co., Sail 4" Chandler 87; Mt. Bullion, Mariposa Co., Jep- 

 son 10,728; Harden Ranch, Tuolumne Co., Jepson 10,562; Burson, Calaveras Co., Jepson 9934; 

 Jackson, Sansen 287; Sweetwater Creek, Eldorado Co., K. Brandegee; Rose Sprs., Placer Co., 

 M. S. Gates; Oroville, Seller 11,388; Fall River Sprs., ne. Shasta Co., Sail 4r Babcoch 4180; 

 Egg Lake, Modoc Co., M. S. Balcer. Sacramento Valley: Montezuma Hills, se. Solano Co., Jepson 

 13,498; Little Oak, Vacaville, Jepson 14,413; Sacramento, F. Eamaley ; Cana, Butte Co., Jepson 

 16,613. Coast Ranges: Santa Lucia Mts. (Rep. Mo. Bot. Card. 5:118) ; New Almaden (Bot. Cal. 

 1:233) ; Howell Mt., Napa Co., Jepson 14,409; Mt. Hanna, Lake Co., Jepson 14,411; Cloverdale, 

 Bolander 6535 ; South Mill Creek, Ukiah, Jepson 9275 ; Blue Lakes grade, Mayacamas Range, 

 Jepson 14,410; near Devoy Camp, South Fork Eel River, s. Humboldt Co., Tracy 5050; Forks of 

 Dobbyn Creek, Humboldt Co., Tracy 4728 ; Koon Ranch, South Fork Trinity River, Trinity Co., 

 Tracy 7705. 



Refs.— BoiSDUVALiA STRICTA Greene, Fl. Fr. 225 (1891) ; Trel. Rep. Mo. Bot. Gard. 5:117, 

 pi. 24 (1894) ; Jepson, Fl. W. Mid. Cal. 330 (1901), ed. 2, 276 (1911), Man. 672 (1925). Gayo- 

 phytum strictum Gray, Proc. Am. Acad. 7:340 (1868), type loc. Cloverdale, Bolander 6535. 

 Oenothera torreyi Wats. Proc. Am. Acad. 8:600 (1873), "Oregon, (190 Sail) and cent. Cal. 

 (Bear Mt., Borax Lake, and New Almaden, Torrey)". B. torreyi Wats. ; B. & W. Bot. Cal. 1 :233 

 (1876). Oenothera densiflora var. tenella Gray, Proc. Am. Acad. 8:384 (1873), type from Ore., 

 E. Sail 189. 



5. B. cleistogama Curran. Stem commonly with stout rigid whitish branches 

 or rarely simple, 4 to 8 inches high ; herbage pilose-pubescent, somewhat glandular, 

 glaucescent; leaf -blades linear or lanceolate, 1 to 11/2 inches long, remotely den- 

 ticulate; flowers axillary along the branches, the earliest fertilized in the bud and 

 never expanding, the later light pink; petals 2 lines long, bifid; capsule 4-sided, 

 sharply angled, sharply pointed, the septal lines on each side distinct, 5 lines long, 

 puberulent, hard-coriaceous, very tardily dehiscent, if ever. 



Beds of former vernal pools, 20 to 500 feet: lower San Joaquin Valley; Sacra- 

 mento Valley. June. 



Locs.— Betw. Oakdale and La Grange, Jepson 14,418 ; Farmington, San Joaquin Co., Tracy 

 5787; Antioch, K. Brandegee; Elmira, Solano Co., K. Brandegee; Butte Creek, betw. Durham 

 and Nelson, Butte Co., Seller 11,395. 



Ref s.—BoiSDUV ALIA CLEISTOGAMA Curran, BuU. Cal. Acad. 1:12 (1884), type loc. Mt. Diablo, 

 Curran; Trel. Rep. Mo. Bot. Gard. 5:121, pi. 26 (1894) ; Jepson, FL W. Mid. Cal. 330 (1901), 

 ed. 2, 277 (1911), Man. 672 (1925). 



6. CLARKIA Pursh 



Annuals with brittle stems and alternate leaves. Flowers showy, in terminal 

 racemes (nodding in the bud) . Calyx-tube short and obconical or long and slen- 

 der, the lobes 4, reflexed in flower, or remaining united and turned to one side. 

 Petals 4, purple or rose-color, with claws, the limb entire or lobed, widespreadmg. 

 Stamens 8 (those opposite the petals short or rudimentary) or 4. Ovary 4-celled; 

 style elongated, the stigma with 4 broad lobes. Capsule linear, or attenuate above, 

 straight or somewhat curved, coriaceous, with very smooth sides, somewhat 4- 

 angled, 4-valved. Seeds numerous, angled or margined.— The lower leaves m this 

 and in the two succeeding genera often disappear very early.— Species 6, western 



