ca 
ee 
9395 
Se na Spreng. ————————> A small densely tufted annual with fibrous 
roots, the stems slender, erect,3-6 cme tall, the leaves reduced to sheathing 
basal scales; spikelets greenish, solitary, terminal, 5-5 mm. long, ovoid; 
scales ovate, the upper rather acute; achene ovoid, shining, straw-colored, 
the bristles 6-8, somewhat lenger than the achene. 7 
Reported from near Viola by Piper. 
4. S,. americanus Perse —-——»Perennial growing in shallow waners as much as 
a meter tall, having stout running rootstocks, the stems sharply angled; leaves 
—_ eee 
1-3, sheathing and basal; spikelets several, ovoid, .5=<1 cm. long, borne in a 
sessile cluster apparently lateral in the tip of the stem, the involucral leaf 
acute; scales ovate, sparingly ciliate, 2-cleft at the apex; style 2-cleft, 
Swemp, Bonners Ferry, Christ 1438, 
S,. validus Vahle Bulrush,. Perennial with stout branching rootstocks, the 
stems columnar, 1.5-3 m. talls leaves reduced to sheathing basal scales which 
are leathery and brown, 5-10 cm. long or more; spikelets numerous, borne in 
terminal compound umbels; the umbel subtended by an erect stiffish bract 3-8 om, 
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tall which appears to be a continuation of the stem; spikelets ellipticd-cylindrical, 
10-15 mm, long, 2-5 in a cluster; scales ovate, membranous, tipped with a short 
mucro, the margins erose-ciliate; style 2-clefts; achene biconvex but 3-angled, 
obovate, dull straw-color, 2.5 mm, long, the bristles about 6. (S, occidentalis 
Chase). 
Occasional in shallow water of lagoons or in marshes. Priest Lake near Coolin, 
Epling. 
