Sciupus.] OYPERACEJE. 443 



5. S. sylvat'icus, L. ; leaves flat, cymes effuse, branches many divari- 

 cate, spikelets small ovoid green, glumes entire obtuse. 



Moist shaded places, from Argyll and Banff southd.; Ireland; fl. July. — 

 Stems solitary, 1-3 ft., stout, leafy. Leaves large, sometimes f in. broad, 

 keeled. Cymes 2-5 in. diam. ; branches slender; spikelets §-£ in., 3-5 in 

 a cluster. Glumes ribbed. Bristles 6, barbed. Nut obovoid, mucronate, 

 punctulate. — Distrib. Europe (excl. Greece), N. Asia, temp. N. America. 



Section 2. Spikelets small, lateral, sessile, fascicled, rarely solitary ; 

 glumes few or many. Bristles 0. (Isolepis, Br.) 



6. S. seta'ceus, L. ; stems filiform, leaves 1-2 narrow channelled, 

 spikelets 1-3 lateral, nut obovoid 3-gonous ribbed and striate. 



Gravelly and sandy damp places, N. to Orkney ; ascends to 1,500 ft. in York- 

 shire ; Ireland; Channel Islands; fl. July-Aug. — Stems 3-6 in., tufted, 

 terete, rigid. Leaves short, setaceous. Spikelets usually 2-3, £-j in., ovoid. 

 Glumes ovate, obtuse, green and brown. Stamens 2-3. Stigmas 3. Nuts 

 broad, brown. — Distrib. Europe, N. Africa (?), Siberia. 



7. S. Sa'vii, Seb. and Maur. ; stems filiform, leaves 1-2 narrow 

 channelled, spikelets 1-3 subterminal, fruit subglobose 3-gonous not 

 furrowed. 



Wet bogs, W. Scotland, from Isla southd. ; Lancashire ; "Wales and Suffolk to 

 Hants and Cornwall ; Ireland; Channel Islands; fl. July. -Very similar to 

 S. seta'cea, but larger, paler, often 10 in., with longer leaves ; fruit paler, 

 shining, dotted in lines. Spikelet sometimes solitary (S. pyg'mcea, Kunth). — 

 Distrib. W. France, S. Europe, N. Africa. 



8. S. flu'itans, L. ; floating, leafy, spikelet terminal solitary, nut 

 obovate compressed mucronate. Eleogi'ton fluitans, Link. 



Marshes and pools, from* Orkney southd. ; ascends to 1,200 ft. in Yorkshire ; 

 Ireland ; Channel Islands ; fl. June-July. — Stems 6-18 in., compressed, 

 slender, branched. Leaves 1-2 in., linear, very slender. Spikelets §-£ in., 

 harrow-ovoid, pale. Glumes 4-8, oblong. Stigmas 2. Nut plano-convex, 

 pale, smooth, tipped with the base of the style. — Distrib. W. Europe, 

 from Gothland southd , Azores. 



9. S. Holoschoe'nus, L. ; stems tall terete stout, leaves few erect 

 subulate rigid channelled, spikelets in compact globose cymose heads, 

 fruit subglobose mucronate transversely wrinkled. 



Sandy sea-coasts, N. Devon ; Channel Islands ; fl. Sept. — Rootstock creeping, 

 stout. Stems 2-3 ft., as thick as a crowquill, tufted, margins of sheaths 

 united by reticulate fibres. Leaves on the upper sheaths only, shorter than 

 the stem, ^-terete, margins rough. Heads Jj-§ in. diam., upper subsessile ; 

 branches of cyme 1-3 in., J-terete, very stout. Spikelets miuute. Glumes 

 obovate, notched, mucronate, ciliate. Stigmas 3. — Distrib. Erorn Belgium 

 southd., N. Africa, Siberia. 



Section 3. Spikelets small, terminal, solitary ; glumes few or many. 

 Bristles 3-8. (Bceo'thryon, Ehrh.) 



