492 
CVI. CYPERACE7E. 
[Isolepis- 
called E. unighimis by Link, almost wholly surrounding it. For the 
last the following stations are given : Aberdeen, Orkney, Barvas in the 
Isle of Lewis, Parkstonein Dorset, and Sussex. Mr. Babington has 
described a species under the name of E. Watsoni ; it is small, with 
the rhizome scarcely creeping ; the achene is said to be longer than 
the 4 — 6 bristles, and striate ; it is only known from two or three 
stems having been found in Dr. Balfour’s herbarium among Scirpus 
paucijlorus, which he had collected in Cantyre, and with which it 
agrees in most of the characters. 
2. E. multicaulis Sm. (many -stalked S.) ; stem terete, rhizome 
scarcely creeping, stigmas 3, achene obovate triquetrous crowned 
with the triquetrous base of the style longer than the 5 — 6 
persistent bristles. Scirpus Sm.: E.B. t. 1187. Scirpus pa- 
lustris j3. Linn. Lapp. ed. 2. 
Probably not uncommon ir. marshy places throughout the king- 
dom, but frequently passed by for E. palustris. 1/-. 7. — Closely 
allied to the last, of which Kunth seems disposed to consider it a 
variety ; like it, too, it has the outer glume either half surrounding 
or almost wholly surrounding the spikelet : the latter state is the 
E. uniglumis of many foreign collectors. The simplest and some- 
times only distinguishing character between them is afforded by the 
fruit. 
3. E. aciculdris Br. (least S.) ; stem setaceous nearly terete, 
sheaths leafless, spikelet ovate acute, glumes equal, stigmas 
3, bristles 1 — 3 caducous. Scirpus L. : E. B. t. 749. Isolepis 
Schleclit. Scirpidium Nees. 
Sides of lakes, and wet, sandy, and marshy places, frequent. V . 
7, 8. — The most slender and delicate of the genus. Root fibrous, 
with filiform suckers. Glumes obtuse or slightly acute. Achene 
obovate-oblong, biconvex, pale yellow, impressed with dotted lines, 
tipped with the almost globose dark base of the style. 
7. Isolepis R. Brown. Isolepis. Mud-rush. 
Spikelets many-flowered. Glumes imbricated on all sides, 
nearly all fertile and equal. Hypogynous bristles 0. Style I 
2 — 3-fid deciduous ; its base not jointed upon the germen. 
Acliene tipped with the narrow base of the style, or pointless. 
— Named from iooq, equal , and \e-irtg, a scale ; on account of the 
uniform size of the glumes which constitute the inflorescence. 
* Stigmas 2. Achenes compressed. Spike solitary, terminal. Eleogiton. 
1. I. fluitans R. Br. (floating I.); stem floating compressed 
branched, spikes ovate, glumes nearly equal obtuse, stigmas 2, 
achene obovate plano-convex tipped with the narrow base of | 
the style. Scirpus L. : E. B. t. 216. Eleogiton Link. 
Ditches and still lakes, and pools of water, which are sometimes 
dried up. If. . 6, 7. 
