ST. John's wort family 509 



Jepson 10,192; Auburn, Shockley; Yuba Eiver at Cisco, E. A. Walker 1461; Manton, Tehama 

 Co., Jepson 15,287; Pine Creek, Lassen Co., BaTcer 4" Cutting. Coast Eanges from San Luis 

 Obispo Co. to Siskiyou Co., 500 to 5000 feet: Price Canon, San Luis Obispo Co., Condit; Pacific 

 Grove, Heller 6784; San Francisco (Zoe 2:343) ; Healdsburg, W. E. Bryant; Mt. Konocti, Lake 

 Co., Jepson; Ft. Bragg, W. C. Mathews; Elk Mt., nw. Lake Co., Tracy 2280; Van Duzen Eiver 

 "Valley opp. Buck Mt., Tracy 4272; Sisson, Jepson 13,956; Shackelford Creek, w. Siskiyou Co., 

 Butler 1765. 



Eefs. — Hypericum anagalloides C. & S. Linnaea 3:127 (1828), type loc. San Francisco, 

 Chamisso; Jepson, Fl. W. Mid. Cal. 235 (1901), ed. 2, 263 (1911), Man. 637, fig. 630 (1925). 



3. H. perforatum L. Klamath Weed. Stems simple but the main axis bear- 

 ing many very leafy short sterile shoots and ending above in a densely flowered 

 cyme, 1 to 4 feet high; leaf -blades linear to oblong, soon revolute, I/2 to 1 inch long, 

 those of the sterile shoots about % inch long ; flowers % to 1 inch broad ; sepals 

 lanceolate, acuminate, about 4 times as long as broad; petals linear-oblong, copi- 

 ously black-dotted, twisting after anthesis. 



European weed, a serious pest in abandoned or poorly tilled fields in the hill 

 country, 500 to 3500 feet: northern California, in both the Sierra Nevada and 

 outer Coast Ranges. May-June. 



Biol. note. — The plant is furnished with a deep-seated taproot which sends up new shoots 

 from the root-crown each season. These shoots serve as foliage shoots, but only one of them 

 becomes a reproductive stem and develops an inflorescence. One shoot thus gains an ascendancy 

 over the others and only one such flowering stem in a place has been observed by us. The other 

 shoots at flowering or fruiting time may, ordinarily, be found only by investigating the base of 

 the plant and observing the wisp of dried stems. At this time the flowering shoot produces also 

 a number of young vegetative buds near the base ; these develop leafy shoots during the succeed- 

 ing moist season so that the work of producing reserve food goes on anew. The taproot, in addi- 

 tion, gives off short stolons which, on reaching the surface, also develop the short-lived leafy 

 shoots, of the type just mentioned, and one reproductive shoot, which is of course leafy below. 



Locs. — Coast Eanges: Santa Cruz (Univ. Cal. Agr. Exp. Sta. Bull. 503:6) ; Anderson Val- 

 ley, Mendocino Co. (Univ. Cal. Agr. Exp. Bull. 503:6), Blue Eock Eidge, n. Mendocino Co., 

 ace. Kennedy; Miranda, South Fork Eel Eiver, Humboldt Co., Jepson 12,368; Eush Creek, Trin- 

 ity Co., H. S. Yates 419; Hupa, Jepson 1984; Weaverville, Yates 358; High Prairie Creek, Del 

 Norte Co., Jepson 9349 ; Anderson, Shasta Co., Alice King; Yreka, W. L. Kleaver. Sierra Nevada 

 foothills: Dudley ranch, Coulterville, J. Grinnell; Columbia, Tuolumne Co., Jepson 6444; Folsom, 

 Hall 10,220; Chicago Park, Nevada Co., Hall 10,210; Olinda, Shasta Co., Blanlcinship. 



Eefs. — Hypericum perforatum L. Sp. PI. 785 (1753), type European; Jepson, Man. 638 

 (1925). 



4. H. formosum H.B.K. var. scouleri Coulter. Stems usually erect from run- 

 ning rootstocks, slender, simple or branching at summit, 1 to 3 feet high; leaf- 

 blades ovate to oval or oblong, obtuse, black-dotted along the margins, sessile by 

 a more or less clasping base, I/2 to II/4 inches long ; flowers i^ to % inch broad, 

 in more or less panicled cymes; sepals and petals black-dotted; sepals ovate, mostly 

 obtuse, sometimes acute, twice as long as broad; petals obovate; stamens numerous, 

 in 3 clusters. 



Openly wooded slopes, hills and mountains, 50 to 7500 feet : almost throughout 

 California. North to Washington. July- Aug. 



Locs. — S. Cal.: Cuyamaca, T. Brandegee ; Witch Creek, Alderson; Palomar Mt., Esther 

 Hewlett 22; Mt. San Jacinto, Geo. F. Eeinhardt; Arrowhead Lake, San Bernardino Mts., Braun- 

 ton 1062; Claremont (Bull. S. Cal. Acad. 17:65) ; Seymour Creek, Mt. Pinos, Hall 6681, Coast 

 Eanges: Nacimiento Eiver, sw. Monterey Co., Jepson 1698; Pajaro Hills, Chandler 411; Howell 

 Mt., Jepson; Big Horse Mt., n. Lake Co., Jepson; Eound Valley, Mendocino Co., Westermann; 

 Patricks Pt., Humboldt Co., Tracy 4362; Grouse Creek, Humboldt Co., Chesnut 4- Brew; Koon 

 ranch. South Fork Trinity Eiver, Tracy 7699 ; Sisson, Jepson 13,961 ; Log Lake, Siskiyou Co., 

 Butler 6; Oro Fino, Siskiyou Co., Butler 5; Goosenest foothills, Butler 1627; Crescent City, 

 M. S.' Baker 231b. Tehachapi Mts.: Tehachapi, Davidson. Sierra Nevada: Jordan Hot Sprs., 

 Tulare Co., Elsie Zeile; Trout Mdws., Kern Eiver, Purpus 1869; Huntington Lake, A. L. Grant 

 1120; La Grange, Tuolumne Co., Jepson 13,960; Yosemite, Jepson 8375; Hetch-Hetchy, Jepson 

 3468; Confidence, Tuolumne Co., Jepson 7709; Kennedy Lake, Tuolumne Co., A. L. Grant 208; 

 Dorrington, Calaveras Co., Jepson 10,111; Glen Alpine, Eldorado Co., Katharine Chandler; 

 Auburn, Shockley; Blairsden, Plumas Co., Mason; Big Mdws., Plumas Co., R. H. Piatt; McCloud 

 Eiver, M. S. Baker; Martin Sprs., Eagle Lake, Brown 4 Wieslander 28 ; Happy Camp ranger sta., 

 Warner Mts., L. S. Smith 1436 ; Davis Creek, ne. Modoc Co., B. M. Austin. 



