8 SOUTHERN CALIFORNIA ACADEMY OF SCIENCES 
A PRELIMINARY SYNOPSIS OF THE SOUTHERN 
CALIFORNIA CYPERACEAE.—VI.* 
BY S. B. PARISH. 
++++ Involucral leaves several, grass-like. 
= Spikelets large, in an umbel of 1-3 short rays, or condensed 
in a sessile cluster. 
6. Scirpus Pacificus, n..sp., Britton, in lit. S. maritimus, 
Wats., Bot. Cal. 2:218. §S. robustus, Jepson, Fl. W. Mid. Cal. 87. 
Abrams, Fi. Los Angeles’’, 69. 
Culms scabrid above, 3-6 dm. tall; leaves rough-margined, 
3-10 mm. wide, the longest equaling the culms; involucral leaves 
2-5, one of them erect, and 10-15 em. long; spikelets ovoid, 
obtuse, 10-15 mm. long, 3-6 mm. thick; scales brown, puberu- 
leus, ovate, 5-7 mm. long, the mid-vein execurrent from the 
toothed apex as a short, recurved awn; bristles 1-5, weak, 
shorter than the achene; stamens 3, the anthers tipped with a 
subulate appendage; achenes brown, obovoid; cuneate-nar- 
rowed to the base, mucronulate, 3 mm. long. 
Common in brackish water near the seacoast. Long Beach; 
Davidson, Parish. Redondo; Grant. Los Angeles; Braunton, 
Nevin. Coyote Creek; Parish. Also at Camp Cady, in the 
Mojave Desert; Parish. Apparently not occurring in the In- 
terior subregion. Northward along the Pacific coast to Wash- 
ington. SS. robustus compactus, Davy in Jepson, l. ¢., is simply 
the condensed form. 
Plate X. Umbelx%3. a. Achenexs. 6. Cross section of 
achene. 
= Sprkelets small, numerous, in a aiffuse, decompsund umbel. 
7. Scirpus microcarpus, Presl, Rel. Haenk. 1:195. Britton, 
Trans. N. Y. Acad. 11:81. Britt. & Br. Ill. Fl. 1:269. S. sylvati- 
cus digynus, Boeckl, Linnaea 36:727. Watson, Bot. Cal. 2:219. 
Culms obtusely 3-angled, 1-2 m. tall; leaves rough-margined, 
1-2 mm. wide, longer than the culms; involueral leaves unequal, 
the longest seldom surpassing the rays; primary rays of the 
umbel numerous, 10-15 em. long; spikelets obovoid, 3-5 mm. 
long, in ultimate clusters of 2-7; seales pale brown, obovate, 
1-2 mm. long, the green midvein often projecting as a short 
mucro; bristles 4, mostly twice the length of the achene; sta- 
mens 2, the anthers ciliolate on the edges, and tipped with a 
short conical appendage; achenes nearly white, obovoid, | mm. 
long and nearly as broad, pointed at the apex. 
Common along the borders of streams throughout the Cis- 
montane region, ascending the mountains at least to 5,000 ft. alt. 
*Continued from Page 143, Volume III, No. 8, November, 1904. 
