350 96. CYPERACEA. 
vii. 304. St. 36.4. S. tenuifolius DC. S. triqueter 8. Sm.—St. 
from afew inches to 13 foot high, slender with several sheaths at 
the base terminating in long narrow keeled leaves. Lower bract 
very long and rigid, resembling a prolongation of the stem. 
Spikelets large, ovate, obtuse, all sessile. Anth. with a subulate 
vie point. Stigmas 2.—St. Ouen’s Pond, Jersey. P. VI. 
II. 
+TT Stem terete. 
6. S. lacustris (L.); st. round, spikes in a terminal twice com- 
pound panicle, gi. notched mucronate glabrous fringed, nut ob- 
tusely trigonous obovate, stigmas 3.—E. B. 666. St. 36. 1. R. viii. 
306.—St. 4—6 feet high, naked, with 1 or 2 long sheaths at the 
base. Anth. bearded at the end. Panicle terminal, the bract 
sometimes resembles a continuation of the stem. Sometimes the 
sheaths bear long nearly flat floating leaves.—Rivers and ponds. 
P. VI. VIL. Bull Rush. 
7. S. Tabernemontani (Gm.); st. round, spikes in a terminal 
compound panicle, gi. notched mucronate punctate-scabrous 
fringed, nut compressed roundish-oblong smooth, stigmas 2.— 
R. vii. 307. 8. glaucus Sm., E. B.2321.—St. 2 feet high, with 1 
or 2 long sheaths at the base. Anth. not bearded. Panicle 
smaller than in the preceding. Lower bract short. Fr. convex 
on one side.—Rivers and ponds. P. VI. VII. 
** Bristles 4—6. Spikes solitary, terminal. BmotTuryon Dietr. 
8. S. cespitosus (L.); st. nearly round striated with imbricated 
leafless acute scales and sheathswith short subulate 1. below, spikes 
terminal solitary ovate few-flowered, g]. ovate membranous pointed, 
2 outer gl. as long as the spike inclosing it and terminating in long 
rigid leaflike points, nut obovate oblong mucronate smooth, bristles 
longer than the nut with a few erect teeth near the tip.—E. B. 
1029. St.10. R. viii. 300.—St. 3—6 in. long, numerous, erect, 
many of them barren. Bristles 6.—Barren turfy heaths. P. 
VI.—VIII. 
9. S. pauciflorus (Lightf.); st. round striated with a few thin 
narrow leafless scales and one tight abrupt leafless sheath below, 
spikes terminal solitary ovate few-flowered, gl. ovate keeled mem- 
branous at their edges, 2 outer gl. obtuse shorter than the spike 
and inclosing it, nut obovate mucronate reticulate-striate, bristles 
shorter than the nut with declining teeth—E. B. 1122. St.10. R. 
viii. 299.—St. 3—10 in. long, numerous erect many of them bar- 
ren. Bristles 6—Boggy moors and heaths. P. VI.—VIII. 
10. S. parvulus (R. and 8.); st. round with one close-pressed 
leafless sheath, J. filiform acute radical slightly dilated at the base 
and clasping the st., spikes terminal solitary oval few-flowered, 
