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^ Jimcus.'] ' xcvii. JUNCACE^. '463 



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 unit; 



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***=^ 5'/e?K5 ?€«/y. Leaves plane or grooved above; not dhtlnctly jointecL 



I S'cecZs zi'27/i an appendage at each end, 



14. J. castdneus Sm. (clustered Alpine R.) ; stem rounded 

 2— 3-leaved, leaves hollow grooved above rounded at the back, 

 beads of flowers terminal generally single sessile or peduncled 

 .shorter than the bractea, capsules ovate-oblong pointed bluntly 

 tri^Tonal nearly twice as long as the elliptic-lanceolate acute 



Jf^, sepals. E.B.t.90. 



Rare. Elevated mountains of Breadalbane ; rocks at the head 

 of Glen Callader, in Braemar, In the county of Durham. %. 



7^ 8 '' Eoot slightly creeping, with short runners or lateral shoots. 



^^emhohow. Leaves with the channelled side very thin and mem- 

 branaceous ; and within are found distant transverse partitions. Upper 

 part of the leaf rounded and compressed. Sepals 3-ribbed. Stgle 

 I breaking off at a joint. Capsule shining, and as well as the perianth 



r and inner bractea of a deep chocolate colour ;'* W. Wilson, 



15. J. trijidiis L. {three-leaved R.) ; stem 1-leafed, sheaths 

 fringed those of the base of the stem leafless, bracteas 2 resem- 



bling the setaceous solitary stem-leaf, heads of about three ter- 

 minal flowers, capsule rounded- elliptical beaked longer than 

 the acute sepals. E. B. t. 1482. 



t Rocky places on the Highland moimtains of Scotland. If., 7, 8, 



Very unlike any other British Jimcus, Root creephig. Lower 

 sheaths with at most a short awn, scarcely to be termed a leaf. A 

 solitary leaf is on the stem, generally near the summit, 2 — 3 inches 

 long, linear, setaceous. Capstde with a furrowed beak. 



11 Seedswithout an appendage, 



16. J. compressus Jacq. (round-fruited R,) ; stem erect more 

 or less compressed, leaves linear-setaceous grooved, panicle 

 terminal compound subcymose, capsules roundish-ovate or oval 

 inucronate equal to or longer than the oval-oblong obtuse 



^l/ incurved sepals. — a. panicle usually shorter than the bractea, 

 » perianth shorter than the roundish-ovate shortly mucronate 



0.^ capsule. J. bulbosus E, B. t. 934. — )5. panicle usually longer 



than the bractea, perianth as long as the oval-oblong strongly 



are^ mucronate capsule. J. ccenosus Bich. : E.B.S, t. 2680. J. 



i' Gerardi LoiseL J. Bothnicus WahL 



Wet marshy places, common. — i3. In salt-marshes. %, 6—8. 

 iif' — Having seen various specimens of both varieties, we feel confirmed 



■'0^ in our opinion that they are merely extremes of the same species; 



latj^l indeed La Harpe, although he retains both, allows that there are 



,tnany specimens so intermediate that it is impossible to say to which 

 to refer them. We believe that in Scotland it has never been found, 



except in the vicinity of the sea. 



X 4 



