JUNCUS. 331 
rather shorter than the narrow-ovate acuminate rostrate trique- 
trous (pale brown) capsule.—E. B. 238. R. ix. 406. J. sylvaticus 
Hoppe in St.78. 1, Koch.—St. erect, 142 feet high. L. shghtly 
enna Clusters 5—6-flowered.—Boggy places. P. VI.— 
Vil. 
16. J. lamprocarpus (Ehrh.); st. 3—6-leaved and as well as 
the internally jointed /. compressed, panicle repeatedly compound 
erect forked, segments of perianth equal acute the inner ones ob- 
tuse all shorter than the ovate attenuated mucronate triquetrous 
(dark brown) capsule.—E. B. 2143. St.71.16. BR. ix. 405.—St. 
erect, 12—18 in. high. L. compressed, with numerous internal 
divisions. Clusters 4—8-flowered.—Boggy places. P. VII. VIII. 
(J. alpinus (Vill.), R. ix. 403, having an acute dorsal angle to 
the sheaths of its leaves and blunt segments to its perianth which 
are mucronate below their summit ;—J. atratus (Krock.), R. ix. 
407, having “ more deeply striated leaves” than either of the 2 
preceding species and the inner acute segments of the perianth 
about as long as the ovate-attenuate capsule; and J. nigricans 
(Drej.), R. ix. 407, with unequal acute segments of perianth and 
a subglobose capsule ; will probably be found in Britain. ] 
17. J. nigritellus (D. Don); st. 3—4-leaved and together with 
the internally jointed 1. nearly cylindrical, panicle slightly com- 
pound erect, segments of periunth nearly equal (3 imner rather 
longer and broader) all acute shorter than the linear-oblong tri- 
gonous rostrate (black) capsule.—E. B. 8. 2643, not Koch, Kunth. 
—St. erect, 6—12 im. high. L. scarcely at all compressed. 
Clusters of more numerous fl. than in the preceding. Caps. 
brown, at length black and glossy, more abruptly poimted than 
in J. lamprocarpus.—Boggy places in the north. P. VI. VIII. 
18. J. supinus (Moench); st. filiform, 1. setaceous slightly 
channeled and faintly jointed internally, panicle nearly simple 
irregular elongated with few distant clusters, segments of the 
perianth equal acute (3 inner rather obtuse) nearly as long as the 
elliptical very obtuse mucronate (pale brown) capsule, anth. as 
long as their filaments.—Z. B. 801. St.13.8. R.ix.397. J. uli- 
ginosus and J. subverticillatus 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.—8. J. nigritellus (Koch); caps. shorter, stam. 6, 
filaments nearly twice as long as the elliptical anthers. St. 78. 2. 
—Boggy and wet places. 8. Ivy Bridge, Devon (in a bog). 
Mr. Keys. Cunnamara, Galway. P. VI.—VIIL. 
+tt Flowers solitary, remote or corymbose and forming a termimal 
panicle. Seeds not appendaged. 
19. J. squarrosus (L.); st. leafless simple, |. linear channeled 
