J0NCUS. 
341 
12. J. trif'idm (L.) ; st. loith 1 leaf on its upper part, basal 
sheaths awned, upper sheath with a short 1., head terminal of 1 — .'H 
ifl. with two setaceous leaji 'ike bracts, segments of perianth acute 
falling short of the rounded elliptic beaked caps., creeping. — 
^E. B. 1482. St. 71. 12. B.. ix. 394.— St. crowded, erect, slender, 
2 — 6 in. high. Occasionally the stem-1. is wanting and some- 
times it haa a second head in its axil. Remarkable for its long 
setaceous bracts. Perianth and caps, dark brown. — Damp rocky 
places on mountains. P. VII. VIII. S. 
tt Flowers in a terminal head, or 2 heads one above the other, 
or in panicled heads. Seeds not appendaged. 
\J. capitdtus (W eigel) ; st. naked erect simple, 1. radical fili- 
form, head terminal mostly solitary falling short of the seta- 
ceous bract, segments of the periaidh unequal, outer ovate-lan- 
ceolate acuminate- aristate tivice as lofig as the truncate anictdate 
caps., stam. 3.—R B. S. 2644.— Plant 1—4 in. high. L. half 
as long as the stems. Heads large, of 3 — 10 sessile flowers. — 
Sandy ground in Guernsey and Jersey. A. VI. VII.] 
13. J. obtusi/ldrm (Ehrh.) ; 2-leaved st. and internally jointed 
,Z. terete, panicle repeatedly compoimd spreading divaricate, seg- 
ments of perianth equal blunt equalling the ovate acute trigonous 
(pale brown) capsule.— B. 2144. B. ix. 404.— Erect, 2—3 
leet high. St. and 1. not compressed. Segm. of perianth pale, 
often purplish, quite blimt or with a small inflexed point. — 
Marshes, rather rare. P. Vn.— IX. E. S. I. 
14. J. actdijl6rus (Ehrh.); 3 — 4-leavedst. andintemallyjointed 
I. subcompressed, panicle compound pyramidal, segments of pieri- 
anth acute inner ones longest all falling rather shor*^ of the narrow 
ovate-acuminate rostrate triquetrous (pale brown) capsule. — 
E. B. 238. B. ix. 406.— St. erect, 1^—2 feet high. L. slightly 
compressed. Clusters 5 — 6-flowered. — Boggy places. P. VI. 
— vm. E. s. I. 
15. J. lamproear'pus (Ehrh.) ; 3 — 6-leaved st. and internally 
jointed I. compressed, panicle repeatedly compound erect forked, 
segmetds of perianth equal acute the inner ones blunt all falling 
short of the ovate-attenuate mucronate triquetrous (dark brown ) 
capsule.— i^. B. 2143. B. ix. 405.— St. erect, 12—18 in. high. L. 
compressed ; many internal ti-ansverse divisions. Clusters 4 — 8- 
flowered.— Boggy places. P. VII. VIII. E. S. I. 
[J. alpinus (Vill.), B. ix. 403, having an acute dorsal angle to 
the sheaths of its 1. and blunt perianth -segm. mucronate below 
their summit; — J. atrdtus (KjcqcXi.), B. \x. 407, hiiving "more 
deeply striate 1." than either of the 2 preceding species and the 
inner acute perianth-segm. about equalling the ovate-attenuate 
