RUSH FAMILY 255 



rootstoek, y.> to 1 (or sometimes 2) feet high; leaves teretish, very narrow (14 to 

 1/0, rarely 1 line), more or less distinctly knotted by internal transverse parti- 

 tions ; ligules present ; heads small, 2 to 7 in a sliort open panicle, sparsely flow- 

 ered ; perianth segments very dark brown, lanceolate, acuminate, VA to 2 lines 

 long; anthers longer than the filaments; stigmas long exserted; capsule oblong, 

 abruptly acute anil beaked, nearly equaling tlie perianth. 



Higher mountains, 5000 to 9000 feet : Sierra Nevada ; south to the San Jacinto 

 and San Bernardino mountains. North to British Columbia. Marked by its very 

 narrow and erect strongly septate leaves with prominent ligules. 



Locs. — Round Valley, Mt. San Jacinto, Charlotte M. Wilder 924; Bear Valley, San Ber- 

 nardino Mts., Parish 3788; Volcano Creek, upper Kern River, Hall 4' Babcock 5425; Tuolumne 

 Soda Sprs., Bolan-dcr 5062 ; Yoscniite trail, BoJandcr 6041 ; Eagle Peak Mdws., Yosemite, 

 Jepson 4375; Stanislaus Peak, A. L. Grant 527; Tahoe, Jepson 7736; Sierra Valley, Hall cf 

 Babcocl- 4477; Honey Lake Valley, Davy 3279; Dixie Valley, Lassen Co., Baker ^ Nutting; 

 Willow Creek, Modoc Co., Baker 4' Nutting; Joseph Creek, Warner Mts., Smith 110; Medi- 

 cine Lake, Goldsmith 35a (det. Coville). Brockway, Lake Tahoe, Nev., Jepson 7750. 



Refs. — JuNCUS NEVADENSis Wats. Proc. Amer. Acad. 14:303 (1879); Bueh. in Engler, 

 Pflzr. 4"°: 203, fig. 97 (1906). J. phaeocephalus var. gracilis Engelm. Trans. St. Louis Acad. 

 2:209 (1868), based on spms. from the Mariposa Grove (Bolander, Hillebrand), upper 

 Tuolumne River {Breu-er 1709, 1760, 2339. Bolander 5062), and Mono Pass, Bolandrr 6013. 

 J. aseptii-s Engelm.; Parish, Muhl. 6:123 (1910), U-pe loc. Bear Valley, San Bernardino Mts., 

 Parish 1439. 



23. J. bolanderi Engelm. (Fig. 43d, e.) Stems slender, terete, 1 to 2% 

 feet high, a little exceeding or about equaling the terete strongly septate leaves ; 

 ligules of the sheaths conspicuous; heads subglobose, very dark, usually 2 or 3 

 in a close cluster, very many flowered ; perianth segments reddish brown, nar- 

 I'owly lanceolate, acuminate and setaceous, li-o lines long, exceeding the capsule ; 

 capsule elavate-oblong, obtuse, apieulate ; seeds obovate, apieulate at each end. 



Swamps, North Coast Ranges. North to southwestern Oregon. 



Locs. — Crescent City, Davi/ 5942; Humboldt Co. (ace. Buehenau in Engler, Pflzr. 43g:186) ; 

 Comptche, Harriet Walker 348; Ft. Bragg, W. C. Mathews 211; Ukiah, Heller 5837; Elk Mt., 

 n. Lake Co., Tracy 2284; Asti, Sonoma Co., Jepson 7648; Glen EUen, Sonoma Co., Bioletti. 



Var. riparius Jepson n. var. Heads smaller, lighter-colored, 5 to 9 in a loose panicle; 

 perianth segments less setaceous. — Lower Sacramento River near Rio Vista, Jepson 29a. 



Refs. — JuNCUS BOLAKDEia Engelm. Trans. St. Louis Acad. 2:436 (1866), 470 (1868), type 

 loc. Mendocino City, Bolander. Var. riparius Jepson. 



24. J. torreyi Cov. (Pig. 43f, g.) Tall coarse plants with slender creeping 

 rootstocks ; stems stout, terete, I14 to 2 feet or more high ; leaves terete, straight 

 and rigidly spreading, the transverse septa very distinct ; Hgules jjresent ; inflor- 

 escence terminal ; flowers many in large dense heads wliich form a compact capi- 

 tate cluster or condensed panicle, the cluster subtended by a long pointed sheath ; 

 perianth light brown. 4 to 5 lines long, its segments lanceolate-subulate, exceeding 

 the narrow pointed golden capsule. 



Damp places. Southern California. East to Texas, tlienee far east to the 

 Atlantic and north to British Columbia. Well distinguished by its large dense 

 heads, by its very narrow and rigid perianth segments and by its slender golden 

 capsule. 



Locs. — Los Angeles River, Braunton 559; Orange, S. B. 4' "'• P- Parish 1593; San Ber- 

 nardino VaUey, Parish 7153; Dixieland, Imperial Valley, Parish 9039; Mecca, Parish 8619; 

 Silver Caiion, Wliite Mts., Jepson 7418; Bakersfield (ace. Coville). 



Refs. — JuNcus TORREYI Cov. Bull. Torr. Club 22:303 (1895). J. nodosus L. var. mega- 

 cephalus Torr. Fl. N. Y. 2:326 (1843), type loc, shores of Lake Ontario, Gray; Cov. TJ. S. 

 Nat. Herb. 4:207 (1893). J. megaceplialus Wood, Classbook Bot. ed. 2:724 (1861), not 

 Curtis. 



25. J. chlorocephalus Engelm. (Pig. 43h. i.) Stems low and slender (8 to 

 15 inches high), terete, from a slender rootstoek; leaves narrow (less than a line 

 wide), the sheaths with ligules; heads 1 or 2, many flowered; perianth pale and 



