Eleocharis.'] 
CYPERACE^]. 
421 
hyaline edge. Bristles 6, whitish. Style trifid. Achene round- 
obovoid, glossy, castaneous, tipped with the white deltoid base of the 
style. Cyperus setaceus, Betz , Obs. y. 10. E. acicularis, Bojer, Sort. 
Maur. 384. 
Mauritius, frequent in swamps and ponds. Also East Indies and Madagascar. 
I cannot from the description, distinguish from this E. radicans , Kunth, Enum. ii. 
142, said to be a plant of Mauritius and Peru. 
3. E. plantaginea, B. Br. ; Kunth , Enum. ii. 153. Densely tufted. 
Stems stout, erect, terete, 2-3 feet high, in. thick, with copious 
transverse septa visible only when the plant is dried, with a leafless 
sheath at the base. Spikelets cylindrical, 1-2 in. long ; flowers 
50 or more. Glumes coriaceous, persistent, in. long, oblong, 
obtuse, emarginate, green with a brown and membranous border. 
Bristles 6-8, exceeding the achene. Achene subglobose, under T X T 
in. long, green at first, finally brown, lenticular, ribbed. Style deeply 
trifid. E. interstincta, B. Br.; Kunth , Enum. ii. 154. 
Mauritius and Seychelles, frequent in ponds. Tropics of both hemispheres. 
4. E. variegata, Kunth , Enum. ii. 153. Densely tufted. Stems 
erect, terete, §-* in. thick, without transverse septa, with a leafless 
sheath at the base. Spikelets cylindrical, 1-2 in. long ; flowers 
30-50 in a spike. Glumes ovate-oblong, coriaceous, | in. long, with a 
green keel, and dark brown border edged with membrane. Bristles 
3-6, brown, longer than the achene. Achene subglobose, -Jj in. long, 
greenish at first, finally brown, strongly ribbed vertically, tipped with 
the persistent brown Lase of the 2-3-fid style. E. Sieberi, Kunth , 
loc. cit. 
Mauritius, in swamps, Sieber, ii. 19 ! Also Madagascar, Tropical Asia and N. 
America. 
10. SCIRPUS, Linn. 
Elowers hermaphrodite, arranged in many-flowered spikelets. 
G-lumes imbricated all round the rachis. Hypogynous bristles 6 or fewer, 
smooth or ciliated or plumose. Stameus usually 3. Style usually 
trifid, Achene triquetrous or plano-convex. — Perennial herbs, leafy or 
leafless, the spikes nearly always clustered or panicled. Djstrib. 
Cosmopolitan. Species 50 or more. 
1 have no means of identifying S.pungens, tranquebarensis , and Willemeti of Bojer, 
Hort. Maur. 383. 
1. S. mucronatus, Linn.; Kunth , Enum. ii. 161. Perennial, 
densely tufted. Stems 2-3 feet long, sharply triquetrous at the top, 
the large basal sheath not produced into any lamina. Spikelets 2-20, in 
a sessile lateral cluster near the top of the stem, each about | in. long, 
20-30-flowered. Glumes much imbricated, broad ovate, cuspidate, J 
in. long, green or brown, ribbed all over the back. Bristles 6, longer 
