RUSH FAMILY. 91 



1 line Long; Btamens 3; anthers C> line long; capsule clavate-obovate, obtuse 

 or ret use. 



Common in marshy ground: Monterey to San Francisco and Bolinas bays 

 and northward. 



6. J. tenuis Willd. Yard Rush. Perennial, forming dense clumps; root- 

 stock tufted; stems slender, 1 to 2 ft. high, very leafy at base, naked above, 

 terete; Leaves less than % 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. congestus Engelm. ; panicle some- 

 what capitate; common near the coast. 



Oakland Hills; Marin Co. Apr.-June. 



7. J. falcatus Mey. Perennial; rootstock slender, creeping; stems 6 to 

 9 in. high, more or less leafy, terete; leaves usually equaling or exceeding the 

 stems, 1\U 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. 



San Francisco; Santa Cruz Mts.; Mar. Var. paniculatus Engelm. Heads 

 smaller, 3 to 5-flowered, in a more or less cymose panicle. — Mendocino City; 

 Lake Co. June. 



8. J. xiphioides Mey. Marsh Rush. Perennial; rootstock elongated, 

 stout, nodes distant; stems 1% to 3 ft. high, erect, leafy, ancipitally com- 

 pressed, 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 a cymosely-paniculate inflorescence of densely few or 

 many-flowered heads; perianth usually dark-colored, about 2y 2 lines long; 

 stamens 6; anthers usually small; style very short; seeds elongate, reticulate, 

 with minute cross-lines within the reticulations. 



A common species in salt-marshes and moist places: Cloverdale; Pajaro 

 Hills; Berkeley; Belmont. June. Var. auratus Engelm. is characterized 

 by the lax cymosely-paniculate inflorescence of usually pale-colored flowers. — 

 Suisun Marshes; Stege; Saratoga. Sept. -Oct. 



9. J. phaeocephalus Engelm. Perennial; rootstock elongated, stout; 

 nodes somewhat distant; stems % to 1% ft. high, erect, leafy, ancipitally com- 

 pressed, not winged; leaves % to 1 line wide, compressed, equitant, more or less 

 distinctly ribbed by transverse septa; inflorescence usually barely exceeding 

 the leaves, terminal; flowers in densely many-flowered solitary or binate heads; 

 perianth dark brown, l 1 /) to 2 lines long; stamens 6; anthers large; style long; 

 stigmas exserted; seeds ovoid, the longitudinal lines closely crossed by promi- 

 nent fine transverse ridges. 



Apparently less common than the preceding species: San Francisco; San 

 Mateo Co. June. 



2. LUZULA DC. Woodrush. 



Plants of dry or high ground in open or shady places. Stems hollow, leafy, 

 simple, slender. Leaves softer and flatter than in J uncus, grass-like and often 

 hairy or villous. Flowers solitary in umbels or panicles or crowded in dense 

 clusters or spikes. Capsule 1-celled; seeds 1 to 3. (Latin Lucus, wood or 

 grove, on account of the habitat of certain species.) 



1. L. comosa -Mey. Common Wood-bush. A sparsely villous perennial; 



