CtASS VI. ORDER I.] JUNCUS. 509 



capsule orate, or nearly spherical, shorter than the perianth, crowned 

 by the base of the style, of a pale brown colour, three valvecl, three 

 celled, and with numerous pale hrown seeds. 



Habitat. — Moist ground, among the Clove mountains, Scotland. — 

 Mr. G. Don. Very rare. 



Perennial ; flowering in July. 



This, though a very rare plant with us, is common in North America, 

 and not unfrequent in many parts of Europe. It is nearly allied to the 

 above J. bufonis, but is readily distinguished by its capsule. 



20. J. squarr'osus. Linn. (Fig. 581.) Heath Rush. Stem naked, 

 obtusely angular; leaves rigid, bristle-shaped, channeled; panicle 

 terminal, compound, cyraose ; perianth of six ovate-lanceolate acute or 

 obtuse pieces, equal to the obovate obtuse capsule. 



English Botany, t. 933.— English Flora, vol. ii. p. 164.— Hooker, 

 British Flora, vol. i. p. 168. — Lindley, Synopsis, p. 274. 



Root of several stout branched fibres. Stems erect, solitary, from 

 six to twelve inches high, smooth, obtusely angular, arising from amidst 

 a tuft of a considerable number of leaves, which are erect and spreading, 

 rigid, wiry, bristle-shaped, from three to four inches long, channeled, 

 and dilated into a thin sheathing base, which is slightly striated. 

 Panicle terminal, compound, cymose, of about four principal branches, 

 one usually longer than the others, roundish, smooth, longer than the 

 hractea, the outer one of which is the largest, a membranous sheath, 

 with the keel terminating in a leafy point as long as the sheath. Pe- 

 rianth of six ovate-lanceolate equal pieces, with an acute or sometimes 

 obtuse point, a dark shining brown colour, with an obscurely ribbed 

 obtuse keel, and a pale thin membranous margin. Stamens about 

 half as long as the perianth, with very short filaments, and yellow 

 twisted linear anthers. Style reaching to near the top of the perianth, 

 with spreading linear stigmas. Capsule about the length of the i)eri- 

 anth, obovate, obtuse, with a short obtuse acute point, three angled, 

 three valved, three celled, many seeded, of a pale shining brown colour. 



Habitat. — Boggy places or dry heathy ground. 



Perennial ; flowering in June and July. 



This is a remarkably hard rigid plant, readily distinguished from all 

 others of our species. It does not seem to be eaten by cattle, except by 

 sheep in the early part of Spring, when the leaves are tender, and 

 there is a scarcity of other herbage. 



21. J. capita tus, Weigel. (Fig. 582.) Dense-headed Rush. " Stem 

 erect, unbranched, leafy at the base; leaves bristle-shaped, channeled; 

 heads one or two lateral and terminal ; stamens three ; perianth of six 

 keeled bristle pointed pieces, twice as long as the capsule." 



English Botany, Suppl. t. 2644.— English Flora, vol. ii. p. 170.— 

 Hooker, British Flora, vol. i. p. 168.~Lindley, Synopsis, p. 275. 

 Herb either solitary or numerously and densely crowded. Root 

 VOL. I. 3 X 



