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 

 Bosa, Heller 5634; upper Conn Valley, JepKon 40b; Alderney, Marin Co., Jepson 8269; Carmel, 

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

 Jepson 7699. 



Kefs. 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 Cov. Proc. 

 Biol. Soc, Wash. 10:129 (1896). J. occidentalis Wiegand, Bull. Torr. Club, 27:521 (1900). 



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

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

 usually equaling or exceeding the stems, l 1 /^ lines wide, not ribbed by transverse 

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

 iiivolucral 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 (% 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. 



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

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



Eefs. JUNCUS FALCATUS Mey. Syn. 34 (1823), type loc. Monterey, HaenJce. Var. PANICU- 

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

 smaller, in a panicle. J. oovillei Piper, Contr. IT. 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 rootstock, a little surpassing or about 

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

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

 perianth segments I 1 /? to 2 lines long, of equal length, the outer ovate, acute, 

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

 capsule; capsule oblong-ovate, obtuse or truncate, shortly 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. North to Washington. 



Locs. Hydesville, Humboldt Co., Tracy 2122; Diusmore Banch, Buck Mt., Tracy 2871; 

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

 Sprs., Mt. Sanhedrin, 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). 



Befs. JUNCUS OBTUSATUS Engelm. Trans. St. Louis Acad. 2:495 (1868), type loc. Mari- 

 posa Big Trees, Bolander; Buch. in Engler, Pflzr. 436 : 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, 2y 2 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 California, and desert slope of the San Bernardino Mts. Arizona, 

 Lower California. 



Locs. Claremont, ace. Parish; Twin Creek Falls, San Bernardino, Parish 3962; Little 

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



Eefs. JUNCUS CANALICULATUS Engelm. Bot. Gaz. 7:6 (1882), type loe. Mill Creek Canon, 

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

 J. macropliyllus Cov.; Hall, Univ. Cal. PubL Bot. 1:65 (1902). 



18. 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 



