HEXANDRIA— MONOGYNIA. Juncus, 173 



18. J. triglinnis. Three-flowered Rush. 



Stem erect, unbranched ; leafy in the lower part. Leaves 

 flat. Head solitary, terminal, of about three uprio-ht 

 flowers, with elliptical bracteas. 



J. triglumis. Linn. Sp. PL467. Fl. Lapp. ed. 2. 88. t. 10. /. 5. 



Willd. V. 2. 216. FL Br. 382. Engl. Bot. v. 13. t. 899. Rel 



Rudb. 24./. Light/. 186. t. 9./. 2. Hook. Scot. 106. Bicheno 



Tr. of L. Soc. t\ 1 2. 3 1 9. Dicks. H. Sicc.fasc. 2. 3. Fl. Dan. 



t. 132. 

 J. biglumis. Dicks. H. Sicc.fasc.2. 2. 

 J. n. 1314. Hall. Hist. V. 2. 168. 

 J. exiguus montanus, mucrone carens. Baiih. Pin. 12. Prodr. 22. 



Theatr. 183. Rudb. Elys. v. 1 . 103./. 8. 

 Jiincello accedens graminifolia platitula, capitulis armerise proli- 



ferae. Raii Sijn. ed. 2. 275. ed. 3. 430. 

 Schoenus ferrugineus. Huds.cd. 1. 14. 

 Gramen cyperoides minimum, caryophylli proliferi capitulo simplici 



squamato. Moris, v. 3. 245. sect. 8. /. 12./ 40. 



In alpine rivulets. 



About the summits of the Scottish and \\'el>h mountains. At 

 Borrodale, near Keswick, Cumberland ; Mr. Robson. JVith. 

 On Ben Lomond near the top, in great plenty. 



Perennial. Julij. 



Like the last in habit, but twice as large. Roots somewhat creep- 

 ing. Stems solitary, from 3 to 6 inches high, round, smooth, 

 naked, except one or two long-sheathed leaves, near the base. 

 Leaves chiefly radical, much like those of J. biglumis. Head 

 usually of 2> flowers, all erect and on a level, sometimes of 2, or 

 4, subtended by a pair of nearly equal, elli))tical or ovate, spread- 

 ing, brown, membranous bracteas, one of them very rarely tipped 

 with a small leafy point : there is besides frequently a'smallcr 

 interior bractea. Calyx-leaves equal, elliptic-oblong, keeled, 

 membranous at the edges. Stam. longer than the calyx. Caps. 

 still longer, rounded at the summit, chesnut-coloured. Seeds 

 oval, with a membranous lateral tunic, extended in a point be- 

 yond each end, as in the foregoing. 



Mr. Bicheno justly describes the leaves as internally cellular, but 

 there is nothing of partitions, or articulations, to be discerned 

 externally. 



10. J. castancus. CUistered Alpine \\\\^\\. 



Stem unbranched, leafy. Leaves keeletl, flat; sheatliing 

 at the base. Heads tenniiial, mostly in pairs, many- 

 fhnvcred, with leafy bracteas. Capsule twice the length 

 of" the calyx. 



