94 juncacejE. 



ish, creeping and widely spreading; stems 1 to 3 ft. high, -stout, erect, 

 terete, leafless; panicle lateral, lax, many-flowered; flowers often 

 somewhat secund; perianth 2 to 3 lines long; stamens 6; anthers 1 

 line long; capsule oblong-ovate, acute. 



Salt-marshes and alkali soils, not uncommon: Little Oak, Solano 

 Co., Jepson; Suisun Marshes. June. 



4. J. patens Mey. Common Rush. Perennial, forming dense 

 clumps; rootstock creeping; stems slender, densely tufted, IJ to 2 ft. 

 high, erect, terete, leafless; panicle lateral, lax, many-flowered; peri- 

 anth \\ lines long; stamens fi; anthers \ line long; capsule sub- 

 globose, slightly angled, obtuse, apiculate. 



A very common species in marshy or springy ground: Lobos Creek, 

 Kellogg; Oakland Hills, Bulander; Suisun Marshes, Jepson; Mill 

 Valley; Berkeley. June-July. 



5. J . efFusus L. Boo EirsH. Perennial, forming dense clumps; 

 rootstock creeping; stems stout, tufted, IJ to 3 ft. high, erect, terete, 

 leafless; panicle lateral, lax, many-flowered; perianth 1 line long; 

 stamens 3; anthers \ line long; capsule clavate-obovate, obtuse or 

 retuse. 



Common in marshy ground: Angwins, Howell Mt., Jepson; Lorin. 

 June. Var. bkunnbus Engelm. ; panicle shorter, more compact; 

 perianth dark brown. — Marin Co., Michener and Bioletii. 



6. J. tenuis Willd. Yakd Eush. Perennial, forming dense 

 clumps; rootstock tufted; stems slender, 1 to 2 ft. high, very leafy at 

 base, naked above, terete; leaves less than J line wide, grass-like, 9 

 in. long; panicle terminal, loose, spreading; spathe exceeding the 

 inflorescence, 8 to 16 lines long; perianth segments pale; stamens 6. 

 Var. CONQESTUS, Engelm.; panicle contracted, somewhat capitate; 

 common near the coast. — Oakland Hills, Bolander; Marin Co., 

 Michener and Bioletti; West Berkeley; Point Isabel. Apr .-June. 



7. J. falcatus Mey. Perennial; rootstock slender, creeping; 

 stems 6 to 9 in. high, more or less leafy, terete; leaves usually equal- 

 ing or exceeding the stems, IJ lines wide, not ribbed by transverse 

 septa; flowers in dense many-flowered terminal heads, which are 

 solitary or in twos or threes; spathe about equaling the inflorescence; 

 perianth segments dark brown, concolorous or with a broad green 

 midvein. 



Drift sand on Lone Mt., San Francisco, Bolander; Santa Cruz 

 Mts., Brewer. Mar. Var. paniculattjs Engelm. heads smaller, 

 3 to 5-flowered, in a more or less cymose panicle. — swampy meadows 

 at Mendocino City, Bolander; Lake Co., Simonds; should be looked 

 for in northern Sonoma Co. June. 



8. d. xiphioides Mey. Marsh Eush. Perennial; rootstock 

 elongated, stout, nodes distant; stems IJ to 3 ft. high, erect, leafy, 

 ancipitally compressed, more or less distinctly winged below the 

 nodes; leaves 2 to 4 lines wide, compressed, equitant, the spaces 

 between the veins divided into segments by distinct transverse septa; 

 inflorescence usually much exceeding the leaves, terminal; flowers in 



