SOUTHERN CALIFORNIA ACADEMY OF SCIENCES -137 
Annual; culms filiform, flattened, grooved, leafless, erect, 
2-5 em. tall; spikelet ovoid-oblong, subacute, 3-8 flowered, 2-3 
mm. long, bractless; scales ovate to lanceolate, 2 mm. long, 
pale green, the lower obtuse, the upper subacute; bristles 
mostly 6, retrorsely barbed, larger than the achene, or want- 
ing’; achenes obovoid, smooth and shining, 1 mm. long, acute. 
Specimens, said to be ‘‘too young for positive determina- 
tion,’’ eolleeted April 18, 1854, at Cucamonga, by Bigelow, are 
referred here by Torrey, in Pac. R. Rep. 4:152. “The species 
is not otherwise known from our region, and perhaps does 
ica, and is usually found about salt marshes. 
v 2. Scirpus paucifiorus, Lightf. Fl. Scot. 1078. Britton, 
icanseeNe Yo Acad. Id:75, Britt. G Br. Tl. Bl, 12262.  Eleo- 
charis paucifiorus, Link, Hort. Berol. 1:284. Watson, Bot. 
Cal. 2:221. 
Perennial by slender rootstocks; culms slender, rigid, stri- 
ate, leafless, 10-15 em. tall; spikelets oblong, very acute, com- 
pressed, 4-8-flowered, bractless, 5 mm. long; scales dark brown, 
hyaline margined, lanceolate, acuminate, 3 mm. long; bristles 
2-6, as long as the achene or longer, or none; achene stramin- 
eous, obovoid, pointed, obscurely reticulate, 2 mm. long. 
Bear Valiey, 6,500 ft. alt. in the San Bernardino Mts., June, 
1894, 3265 Parish. In our specimens the bristles are wanting. 
The species is a northern one, occurring on the Pacific Coast 
in the Sierra Nevada at considerable altitudes; eastward in 
the Rocky Mts., Minnesota, Western New York and Canada, 
also in Northern Europe. 
¥ 3. Seirpus cernuus, Vahl, Enum. 2:285. Britton, Trans. 
N. Y. Acad. 11:76. S. riparius, Spreng. Syst. 1:208. Watson, 
Bot. Cal. 2:217. 
Annual; culms tufted, setaceous or filiform, erect, 3-angled, 
5-15 em. tall. the uppermost sheath usually bearing a short 
ieaf; involucral leaf solitary, erect, setaceous from a broad 
scarious base, not exceeding the spikelet, very promptly de- 
eiduous; spikelet ovoid to oblong, 2-5 mm. high; scales pur- 
ple with pale midvein, or pale with brown markings, coneave, 
oval, 1 mm. in diameter; bristles none; achenes brown, granu- 
late orbieular, the inner face flatter and broader than the 
others, 0.75 mm. in width and height, mucronulate. 
Common along the margins of wet streams and ponds, in 
the Cismontane region, below 1,500 ft. alt. Santa Monica; 
Hasse. Los Angeles: Braunton, Davidson. San Bernardino: 
Parish. A species of wide distribution in Europe, Australia 
and South America; but in North America known only from 
the Paecifie Coast. 
