JUNCUS. 341 



capsule; ami J. nigricans (Drej.), R. ix.407, with unequal acute 

 perianth-segm. and a subglobose capsule ; will probably be found 

 in Britain.] 



17. J- nigritellus (D. Don) ; st. 3 — i-leaved and together with 

 the internally jointed I. nearly cylindrical, panicle slightly com- 

 pound erect, segments of perianth nearly equal (3 inner rather 

 longer and broader) all acute falling short of the linear-oblong 

 trigonous rostrate (black) capsule. — E. B. S. 2643, not of Koch, 

 nor Kunth. — St. erect, (i — 12 in. high. L. scarcely compressed. 

 Clusters of more fl. than in No. 16. Caps, brown, at length 

 black and glossy, more abruptly pointed than in J. lamprocarpus. 

 — Boggy places in the north. P. VII. VIII. 



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

 channeled and faintly jointed internally, panicle nearly simple 

 irregular long with few distant clusters, segments of the perianth 

 equal acute (3 inner rather obtuse) nearly equalling the ellip- 

 tical very obtuse mucronate (pale brown) capsule, anth. as long 

 as their filaments.— E. B. 801. St. 13. 8. R. i.^. 397. J. nli- 

 ginosus and J. subverticillatvs Sm. — Extremely variable in size 

 and the direction of its stems, sometimes erect, at others prostrate 

 and rooting at every joining, or floating. Fl. often viviparous. 

 Stam. 3 or 6. — (3. J. nigritellus (Koch); caps, shorter, stam. 6, 

 filaments nearly twice as long as the elliptical anthers. St. 78. 2. 

 — Boggy and wet places. ^. Ivy Bridge, Devon (in a bog). 

 Mr. Keys. Cunnamara, Galway. P. Vl. —VIII. 



ttt Flowers solitary, remote, or corymbose and forming a ter- 

 minal panicle. Seeds not appendaged. 



19. J. squarrosus (L.); st. leafless simple, 1. linear channeled 

 radical, panicle terminal compound ^vith cymose branches, seg- 

 ments of perianth ovate-lanceolate acute or rather obtuse equal- 

 ling the obovate obtuse mucronate capsule, anth. 4 times as long 

 as their filaments.— E. B. 933. Si. 36.11. fl. ix. 400.— St. erect, 

 6 — 12 in. high. L. many, somewhat spreading, rigid, half as 

 lone as the stem. Caps, pale brown, shining. — Wet heaths and 

 moors. P. VI. VII. 



20. J. compressus ( Jacq.); st. with 1 leaf in the middle, 1. linear 

 channeled, panicle terminal compound subcymose usually fall- 

 ing short of the bract, segments of perianth oval-oblong obtuse 

 falling short of the roundly ovate shortly mucronate capsule. — 

 — E. B. 934. St. 36. 13. R. ix. 399.— St. slender, erect, round 

 and leafy below, naked and compressed above. Floral bracts 

 usually pale. Style half the length of the ovary. Anth. ob- 

 long, about as long as the filaments. — Damp places. P. VI.— 

 VIII. 



