Isolepis.^ CYI. CYPERACE^. 493 



latter state is the E. uniglumis of many foreign collectors. The sim- 

 plest and sometimes only distinguishing character between this and 

 £, palusiris is aflm'ded by the fruit; but in the states usually found, 

 Mr. Wilson points out the following in addition: — " i?oo^ not creep- 

 ing.^ Sheaths of the stem brown, not shining : the siems are always 

 inclined, frequently bent and almost prostrate. • Bristles 6, shorter and 

 narrower than in the former species, the base not dilated, shorter than 

 the ripe fruit. The receptacle is elongated above the insertion of the 

 filaments ; hence the germen seems to be attenuated below. Stem 

 with a stout central pith, with membranous tubes of looser texture 

 interposed between it and the external part. Some of the bristles in 

 the flower seem to be attached to the receptacle higher up than the base 

 of the filaments, but still S of these bristles are at the exterior base of 

 those filaments:" Wilson MSS, 



3. E. aciculdris Roem. et Sch. (least S,^ ; stem setaceous 

 almost round, sheaths leafless, spike ovate acute, glumes equal 

 acute, stigmas 3, bristles 2 — 3. JEd, Cat. p. 5. Scirpus E, J3, 

 t. 749. Isolepis Schlechi. Scirpidium Necs. 



Sides of lakes, and wet, sandy, and marshy places, frequent. 1/.. 

 7, 8, — The most slender and delicate of the Spike-rushes, Boot 

 fibrous, with iiiiform runners. Fruit obovate, oblong, compressed, 

 pale yellow, beautifully impressed with dotted lines, tipped with the 

 almost globose dark base of the st7/le. 



m 



7. IsoLEris li. Brown. Isolepis, Mud-rush. 



Spikelefs many-flowered. Glumes imbricated on all sides, 

 neai-ly all fertile and equal. Hypogijnous bristles 0, Style 

 2 — S-fid, not thickened at the base, deciduous. Achene tipped 

 "with the narrow base of the style, or pointless. — Named irom 

 i(7oc, equals and Xe-ic^ a scale^ on account of the relative form 

 of the scales which constitute the inflorescence. 



Styles 2. Achenes compressed, Sjnke solitary^ terminal, Eleogiton. 



flititans E. Br. {floating 



n^ar 



y equal obtuse, stigmas 2, 

 bristles none, fruit obovate plano-convex tipped with the 

 narrow base of the style. Scirpus X. ; E. B. t. 216. 

 Eleocharis Hook. Br. FL Eleoo;iton Link. Lindl. 



Ditches and still lakes, and pools of water, which are sometimes 

 dried up. If., 6, 7, 



«« 



Stigmas 3. Achenes triquetrous. 



t Spihes 1 — 3, often apparently lateral, from the lower bractea being a 



continuation of the stem, 



2. I. setdcea R. Br. {Bristle -stalked M.) ; stem compressed 



' Not, indeed, as in the common form of E, palustris ; but it certainly sends 

 out root-stocks to the length of 2 or 3 inches, from which fibres proceed below 

 aad new shoois above. The roots cannot be called simply tufted. 



