juNcirs. 363 



(pale brown) capsule.— J?. S. 2144. iJ. ix. 404.— Erect, 2—3 

 feet high. St. and 1. not compressed. Segm. of perianth pale, 

 often purplish, quite blunt or with a small inflexed point. — 

 Marshes, rare. P. VH.— IX. ' E. S. I. 



15. J. aewtifldrws (Ehrh.); 3 — 4-leaved st. and internally 

 jointed I. subcompressed, panicle compound pyramidal, segments 

 of perianth acute inner ones longest all falling rather short of the 

 narrow ovate-acuminate rostrate triquetrous (pale brown) cap- 

 sule.— X B. 238. R. ix. 406.— St. erect, 1^-2 feet high. L. 

 slightly compressed. Clusters 5 — 6-flowered. — Boggy places. 



P. VI.— vni. E. s. I. 



16. J. lamprocar'pas (Ehrh. ) ; 3 — 6-leaved st. and internally 

 jointed I. compressed, panicle repeatedly compound erect forked, 

 segments of perianth equal acute the inner ones blunt all falling 

 short of the ovate-attenuate muoronate triquetrous (dark brown) 

 capsule.—^. B. 2143. M. ix. 406.— St. erect, 12—18 in. high. 

 L. compressed; many internal transverse divisions. Clusters 

 4— 8-flowered.— Boggy places. P. VH. VHI. E. S. I. 



[J. alpinus (Vill.), JR. ix. 403, having an acute dorsal angle to 

 the sheaths of its 1. and blunt perianth-segm. mucronate below 

 their summit, — J. atrdtus (Krock.), R. ix. 407, having " more 

 deeply striate 1." than either of the two preceding species and 

 the inner acute perianth-segm. about e(jualling the ovate- 

 attenuate capsule, — and J. nig'ricans (Drej.), S. ix. 407, with 

 imequal acute perianth-segm, and a subglobose capsule, will 

 perhaps be found.] 



17. J. nigritel'lus (D. Don) ; 3 — i-leaved si. and internally 

 joined I. nearly cylindrical, panicle slightly compound erect, 

 segments of perianth nearly equal (3 inner rather longer and 

 broader) aU acute falling short of the linear-oblong trigonous 

 beaked (black) capsule. — B. B. 8. 2643, not of Koch or Kunth. 

 — St. erect, 6 — 12 in. high. L. scarcely compressed. Clusters 

 of more fl. than in Sp. 16. Caps, brown, at length black and 

 glossy, more abruptly pointed than in J. lamprocarpus. — Boggy 

 places in the north. P. VII. VIII. E.S.I. 



18. J. supinus (Moench) ; st. filiform, 1. setaceoiis slightly 

 channelled faintly jointed internally, panicle nearly simple ir- 

 regular long with few distant clusters, segments of the perianth 

 equal acute (3 inner rather blunt) nearly equalling the oblrnig 

 very blunt mucronate (pale brown) capsule, anth. as long as their 

 filaments. — B. B. 801. R. ix. 397. J. vliginosm and J. subver- 

 ticillatus Sm. — Extremely variable in size and the direction of 

 its stems, sometimes erect, at others prostrate and rooting at 

 every joint, or floating. Fl. often viviparous. Stam. 3 or 6. — 

 /3. Kochii ; caps, shorter, stam. 6, filameiits nearly twice as long 



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