166 105. Juncus. 12. JUNCE^. PL end. ph. 



16. Juncus triglumis. Three-chaffed junh 

 Leaves subulate; head iermmaH; flowers 3, sessile; capsules 



rather obtuse, as long as the perigonium ; hractece 3-leaved, 

 as long as the flowers. 



Scirpus q. Juncello accedens graminifolia plania capitulisarraerise pro- 

 liferae Lhwyd, Raii Syn. 430, 9 *. 

 Juncus triglumis, Lin. S. P. 467. 



Boggy places ; perennial ; July, August. - 



Culms 6 in. high ; leaves rather jointed, furrowed, chan- 

 nelled ; floaters large, erect, crowded ; hraclece ovate, ribbed, 

 light brown ; 2 outer largest, opening so as to make the 

 flowers stand all in the same plane ; sepales nearly equal, 

 obtuse, the outer brownish green, the inner paler ; capsule 

 elliptical, mucronate, obtuse, 3-sided. 



17. Juncus liglumis. Tujo-chaffed junk. 



Leaves awlshape ; head terminal ; flowers 2, one pedicel- 

 led; cap5z//e longer than the perigonium, tip retuse; bractcce 

 2-leafed, unequal ; upper leaflike. 



Juncus bigiumis, Lin. S. P. 467. 



Moist alpine meadows ; perennial ; August. 



Culm 3 in. high ; leaves jointed ; sheaths broad, scariose; 

 flowers large, facing one way, one above the other; IractecB 2, 

 unequal ; upper leaflike, erect, acute, doubly striated, dark 

 chesnut ; lower shorter, ovate, rather acute ; sepales acute, 

 dark chocolate-colour ; capsule long, turbinate, retuse, 

 3-sided ; caruncle elongated at each end of the seed. 



18. Juncus castaneus. Chesnut junk. 

 Leaves flat, stem-clasping; head terminal, mostly in pairs, 



many-flowered, leafy at bottom ; hractece acute ; capsule 

 longer than the perigonium. 



Juncns castaneus, Smith Fl. Brit. 383. 

 Juncus Jacquini, Symons Syn. 87. 



Micaceous rocks; perennial; July. 



Root creeping; cuhn upright, 12 in. high, single, leafy; 

 leaves upright, compressed, jointed ; sheath keeled ; heads 

 3 to 8-flowered, shining, blackish ; hractece membranaceous, 

 linear; capsules oblong, pointed, 3-celled; caruncle o^ the 

 seed awlshape, at each end. 



19.. Juncus suhvertic'illalus. Whorled jimk. 



Stem-leaves awlshape, knotted, jointed ; panicle corym- 

 bose; head mostly 5-flowered, fasciculately whorled; capsule 

 as long as the perigonium, obtuse ; perigonium awned ; culm 

 lying down. 



