JUNCUS. 341 



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



" - ' i.] 



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



perianth-si 



in Britain. 



17. J. ninritellus (I). Don) ; st. 3 4-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, 6 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. ix. 397. J. uli- 

 ginosus and J. suboerticillatus Sin. 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. 13. J. nigritellus (Koch); caps, shorter, stam. 6, 

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

 Boggy and wet places. /3. Ivy Bridge, Devon (in a bog). 

 Mr. Keys. Cunnamara, Galway. P. VI. VIII. 



tft 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 with 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. St. 36.1 1. R. ix. 400. St. erect, 

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

 long 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. 



