I1EXAND. MONOG. 107 



duncnlate shorter than the bractea, capsules ovate, culm uni- 

 foliate. E. B. t. 900. Bich. in Linn. Trans, v. 12. p. 321. 



HAB. Ben Challum, Dr. Stuart (in Bich.). Near the summit of Ben 

 Lawers, Mr. Dickson and Mr. J. Mackny. Fion Glen, behind Craig 

 Calliach, Breadalbane, Mr. Borrer. Always growing in micaceous 

 soil. Fl. July. I/. 



This interesting plant is, I believe, peculiar to Scotland, and, as far 

 as I know, to the places above mentioned. It is quite unlike any 

 other. Root throwing out runners. Culm 8 10 inches high., erect. 

 Leaves all butone radical, with sheathing membranous bases ; that 

 one is sometimes, but by no means generally, near the summit. 

 Heads of from 3 5 acute flowers, of a dark brown colour. Cap- 

 sules almost black. Mr. Bicheno describes the leaves as jointed at 

 the top ; my specimens do not appear so. Juncus Jncquini, with 

 which this has been confounded by some, is totally different, being- 

 more allied to J. trifidus, quite destitute of leaves below, with never 

 more than one head, of remarkably acuminated flowers. The figure 

 in E. Bot., which my friend Mr. Bicheno finds fault with, admirably 

 accords with my specimens of castaneus, and cannot be assimilated 

 with J. Jacquini. 



11. J. trifidus (three- leaved Rush}, sheaths fringed those at the 

 base of the culm leafless, braeteas foliaceous very long grooved, 

 heads of about 3 flowers terminal, culm unifoliate. Lightf. 

 p. 183. /. 9. E. B. t. 1482. Bich. in Linn. Trans, v. 12. 

 p. 314. 



HAB. Highland mountains, abundant. Fl. July, Aug. I/ . 



Very unlike any other British Juncus. Roots creeping. Lower sheaths 

 with, at most, a short awn, scarcely to be termed a leaf, and that only 

 in the superior of the radical sheaths. A solitary leaf on the stem 

 generally near the summit, 2 or 3 inches long, linear-setaceous. 

 Braeteas 2 under each head of 1 or 3 flowers precisely similar to 

 the leaf just described. 



12. J. lullosus (round-fruited Rush), culm simple leafy com- 

 pressed, leaves linear-setaceous grooved, panicle terminal com- 

 pound subcymose generally shorter than the bractea, capsules 

 rotundato-ovate longer than the obtuse incurved leaflets of the 

 perianth. Lightf. p. 184. E.B.t. 934. Bich. in Linn. Trans, 

 v. 12. p. 307 (J.compressus). 



/3. coenosus, panicle nearly simple few-flowered, longer than the 

 bractea. J. ccenosus, Bich. in Linn. Trans, v. 12. p. 309. 



HAD. Wet marshy pastures, common. (3. Salt marshes, common, 

 I). Don. Fl. Aug. 11 . 



Eight inches to a foot high. Leaves mostly radical, rather long. I have 

 the J. ccenosus* from Mr. Bicheno himself, but I cannot find it to 

 difter at all in the capsule from J. bulbosus. Both are perhaps a 

 little narrower at the base than at the summit. 



a At first I took this plant for the J. bothmciis, and I am now by no means 

 sure that the Lapland plant is really distinct, though it has narrower capsules. 



