528 



CYPERACE^ 



long, central ones sessile, the others stalked, forming a compound 

 lateral cyme ; outer bract stiff, triangular, continuing the stem for 

 an inch or more ; glumes brown, broad, notched or fringed at top, 

 with a minute point ; perianth of 2 — 6 bristles ; style 2-cleft ; nut 

 smooth and shining.— Muddy banks of tidal rivers in the south ; 

 rare. — Fl. August, September. Perennial 



ER16PHORUM vaginAtum 

 {Hares-tail Cotton-grass). 



BLYSMUS RUFUS 



{Ru/ous Club-rush). 



12. S. pungens (Sharp Club-rush). — An allied but smaller 

 species, 6 — 18 in. high, with acutely triangular stems; 2 or 3 

 narrow, keeled leaves 4 — 6 in. long ; 3 — 6 sessile, lateral spikelets 

 each i in. long, in a close cluster ; glumes brown, acutely 2-lobed. 

 — Wet sand, Jersey.— Fl. June, July. Perennial. 



13. S. maritim>us (Sea Club-rush). — Stems sharply triangular, 

 I — 3 feet high, leafy; leaves long, channelled, dark green, | in, 



