JTJJfCITS. 361 



diffuse, branched ; or more or less dense, globose. Anth. oval, 

 short. — Marshy ground. P. VII. E. S. I. 



4. J. conghmerdtus (L.) ; st. faintly striate soft, pith con- 

 tinuous, panicle close or diffuse, caps, obovate retuse mucronate, 

 stam. 3.—K B. 835. St. 71. 3. R. ix. 408.— Height 1—2 feet. 

 L. none or minute and slender at the top of the sheathing 

 scales. Panicle globose, dense ; or more or less diffuse. Anth. 

 linear. The mucro in the hollowed top of the caps, resembles a 

 little hill bearing the style. Marshy ground. P. VII. E. S. 1. 



5. J. glaHcus (Sibth.) ; st. deeply striate rigid, pith interrupted, 

 panicle loose much branched erect, segments of perianth lan- 

 ceolate-subulate rather exceeding the elliptic-oblong mueronate 

 capsule, stam. 6. — H. B. 665. St. 71. 6. R. ix. 415. — Panicle 

 ascending, diffuse. Fr. black. St. rigid, slender, glaucous, 12 — 

 18 in. high. Sheaths dark. L. none or minute and slender at 

 the top of the scales. — Wet places. P. VII. E. S. 1. 



6. J. diffusus (Hoppe) ; st. finely striate rigid, pith cotitinuous, 

 panicle loose much branched erect, segments of perianth lan- 

 ceolate-subulate exceeding the ohmate-blunt mucronate capsule, 

 stam. Q.—Sy. JE. B. 1562. St. 77. 10. R. ix. 414.— Very like 

 the preceding, but the caps, much smaller. St. green. — In wet 

 pkces, rare. P.Vn. VIIl. E. S. ? I. 



7. /. haVtictis (Willd.) ; st. very faintly striate rigid, pith 

 continuous, panicle erect slightly branched, segments of peri- 

 anth ovate-lanceolate acute, caps, elliptic scarcely trigonous 

 blunt mucronate.— -E. ^. -S. 2621. St.7\.2. iE. ix. 411.— Creep- 

 ing widely. L, none or very minute points at the top of the 

 sheathing scales. — Distinguished from J. arctieus by its rounded 

 not trigonous capsules ; from J. glaucus by its fax-creeping rhi- 

 zome, scarcely striate st. and continuous pith. — Sandy and wet 

 sea-coasts of Scotland. P. VII. S. 



8. J./ilifor'mis(L.); st. filiform faintly striate, ^ameZe sj»jpfe 

 of few (about 7)Jl. placed near the middle of the st., segments of 

 perianth lanceolate acute, caps, roundish obovate blunt mucro- 

 nate.— .E. B. 1175. St. 36. 10. R. ix. 412.— L. none or as in 

 the preceding plants. St. remarkably sleiider, about 1 ft, high ; 

 small panicles placed very low. Rhizome creeping.-^Stony 

 margins of lakes in the North. P. VII. ' E. S. 



*** Stems mostly leafy, none ban-en. 

 t Fl. capitate or solitary and terminal. Seeds appendaged. 



9. J. castdneus (Sm.) ; st. with 2 — 3 channelled I., heads 

 terminal solitaiy or 2 or 3, segments of perianth elliptic-lanceo- 

 late acute half as Iqng as the ovate-oblong pointed trigonous- 



K 



