RUSH FAMILY 253 



Locs. — Monterey, Brewer 611; Cannon, Solano Co., Jepson 6786; Conn Valley, Jepson 40a; 

 Anderson Valley, Bolander 4809; Eureka, Tracy 3749, 3986; Shackelford Creek, w. Siskiyou 

 Co., Butler 1697; Shasta Valley, Butler 1422; Soulsbyville, Jepson 7685; Yosemite Valley, 

 Jepson 4392, 8364. 



Var. congestus Engelm. Inflorescence congested or subcapitate. — Central California coast 

 and middle altitudes in the Sierra Nevada: Eureka, Traoy 1172; Hopland, Jepson 7626; Santa 

 Eosa, Keller 5634; upper Conn Valley, Jepson 40b; Alderney, Marin Co., Jepson 8269; Carmel, 

 Ferguson 296 ; West Berkeley, Davy 748 ; Yosemite, Bolander 6037 ; Confidence, Tuolumne Co., 

 Jepson 7699. 



Befs. — JUNCUS TENUIS Willd. Sp. PI. 2:214 (1799), type loc. Boreal America. Var. con- 

 gestus Engelm. Trans. St. Louis Acad. 2:450 (1866), based on spms. from San Francisco 

 (Bolander), Monterey (Brewer), and Colorado (Hall). J. tenuis var. ocoidentalis Gov. Proc. 

 Biol. Soe. Wash. 10:'l29 (1896). J. occidentalis Wiegand, Bull. Torr. Club, 27:521 (1900). 



15. J. falcatus Mey. (Fig. 41e-e.) Stems subterete or a little compressed, 

 6 to 9 inches high, more or less leafy, terete; rootstoek slender, creeping; leaves 

 usually equaling or exceeding the stems, ly^ lines wide, not ribbed by transverse 

 septa ; flowers in dense many-flowered terminal heads, the heads usually solitary ; 

 involueral bract about equaling the inflorescence ; perianth segments 2 lines long, 

 roughened, dark brown, with a broad green midvein ; capsule triangularly ovate, 

 obtuse, mucronate; seeds large (1^4 line long), with a whitish or as if membranous 

 coat. 



Coast region, in .sand-dunes or sandy soil, from Monterey Co. to Humboldt 

 Co. North to Alaska; Japan, Australia. 



Logs. — Santa Cruz Mts., Brewer 1581 ; Lone Mt., San Francisco, Bolander; Samoa sand- 

 dunes near Eureka, Tracy 1273. Unalaska, Jepson 226. 



Refs. — JuNCUs FALCATUS Mey. Syn. 34 (1823), type loe. Monterey, Haenke. Var. panicu- 

 LATUS Engelm. Trans. St. Louis Acad. 2:495 (1868), type loc. Mendocino, Bolander; heads 

 smaller, in a panicle. J. oovillei Piper, Contr. IJ. S. Nat. Herb. 11:182 (1906). 



16. J. obtusatus Engelm. (Fig. 42a-c.) Stems subterete or a little com- 

 pressed, 4 to 10 inches high, from a creeping rootstoek, a little surpassing or about 

 equaling the narrow ( 1 line broad ) leaves ; sheaths without ligules ; involueral 

 bract exceeding the inflorescence; heads 3 to 5-flowered, few in a simple panicle; 

 perianth segments IV^ to 2 lines long, of equal length, the outer ovate, acute, 

 brown nuirgined, the inner very obtuse, white-scarious margined, shorter than the 

 capsule ; capsule oblong-ovate, obtuse or truncate, sliortly apiculate. 



Sandy banks of mountain streams. North Coast Ranges, 200 to 4000 feet ; 

 Sierra Nevada, 4000 to 9600 feet (reported only from the central region) ; San 

 Bernardino Mts. Noi'th to Washington. 



Locs. — Hydesville, Himiboldt Co., Tracy 2122; Dinsmore Ranch, Buck Mt., Tracy 2871; 

 Buck Mt, Humboldt Co., Tracy 3915; Grouse Creek, Humboldt Co., Chesnut # Drew; Thistle 

 Sprs., Mt. Sauhedrin, Heller 5994; Lake Co., A. B. Simonds; Sonora Pass, A. L. Grant 346; 

 Kennedy Mdw., Tuolumne Co., A. L. Grant 448a; Big Creek, Big Oak Flat road to Yosemite, 

 Jepson 8346; San Bernardino Mts. (ace. Parish, PI. World 20:178). 



Refs. — JuNCUS OBTUSATUS Engelm. Trans. St. Louis Acad. 2:495 (1868), tvpe loc. Mari- 

 posa Big Trees, Bnlaiidrr; Buch. in Engler, Pfkr. 430:246, fig. 115 (1906).' 



17. J. canaliculatus Engelm. Stems stout, terete, 2 to 3% feet high ; herbage 

 pale; leaves concave or channeled, almost equaling the stem; ligules present; 

 panicle open, with 8 to 30 heads; heads 3 to 8 (or 12) -flowered; perianth light 

 greenish red, 21/0 lines long, the inner segments distinctly longer ; anthers red- 

 brown ; style long, the stigmas long exserted ; capsule ovate, beaked. 



Stony stream banks or damp soil, from the foothills to 7500 feet, cismontane 

 Southern C'alifornia, and desert slope of the San Bernardino Mts. Arizona, 

 Lower California. 



Locs. — CHaremont, ace. Parish; Twin Creek Falls, San Bernardino, Pari.ih 3962; Little 

 Bear Valley, ace. Parish ; Witch Creek, ace. Parislu 



Kefs. — JuNCUS CAN.\LicuLATus Engelm. Bot. Gaz. 7:6 (1882), type loc. Mill Creek Caiion, 

 San Bernardino Mts., 4000 feet, S. B. # W. F. Parish 1095; Parish, Muhl. 6:125 (1910). 

 J. ■mo<,-ro;)/ii/»H.5 Cov. ; Hall, Univ. Cal. Pubh Bot. 1:65 (1902). 



IS. J. longistylis Torr. Stems tall (1 to 2 feet high), subterete or slightly 

 compressed ; leaves shorter than the stems, the sheaths with ligules ; heads densely 



