172 HEXANDRIA— MONOGYNIA. Juncus. 



we fortunately get rid of that name. J. mutahilis, Cavan. Ic. v. 3. 

 49. t. 296./. 2, but not of Lamarck^ is very like our capitatus ^ 

 but is drawn, and distinctly described, with 6 stamens ; and Ca- 

 van illes may safely be trusted in what he professes to have seen. 

 The calyx moreover is not at all suitable to our plant. J. Bauhin's 

 J.foliatus minimus may be referred to either, but to no other 

 known species. Mr. Don's supinus, in my copy of his work, is 

 evidently the common ulis^inosus, in a miserably starved condi- 

 tion ; yet this brings him unconsciously, see Fl. Dan. t. 1099, 

 nearer the truth than any body. 

 Dr. Solander, in his manuscripts, gave the apt name of stellatus to 

 Portuguese specimens of this Juncus, gathered by Dr. Gray j 

 but nothing can be better than capitatus, now, I trust, esta- 

 blished beyond all uncertainty, 



17. J. biglmnis. Two-flowered Rush. 



Stem erect, unbranched ; leafy at the base. Leaves flat. 

 Head solitary, of two unilateral flowers, surmounted by 

 a leafy bractea. 



J. biglumis. Linn. Sp. PL 467. Fl. Lapp. ed. 2. 88. Montin in Am. 

 Acad. V. 2. 266. t.^.f. 3. Willd.v. 2.216. Fl. £r.382. Engl. 

 Bot. V. 13. t. 898. Don H. Brit. 8. Bicheno Tr. of L. Soc. v. 1 2. 

 320. Light/. 1100. Hook. Scot. 106. Fl. Dan. t. 120. 



About mountain rills, in the Highlands of Scotland, rare. 



On Ben Lomond, and in Breadalbane. Rev. Dr. Stuart. On Ben 

 Lawers in Breadalbane, and other Highland mountains. Mr. 

 Mackay. Seldom found but on Ben Lawers. Mr. G. Don. 



Perennial. August. 



Root fibrous. Stems solitary, leafless, quite simple, from 2 to 4 

 inches high, round, or somewhat quadrangular and striated, at 

 least when dry. Leaves several, all radical, erect, awl-shaped, 

 flattened, slightly channelled, about half the height of the stem j 

 sheathing, but not much dilated, at the base. No partitions, or 

 joints, are perceptible externally. Fl. 2, terminal, one above an- 

 other, and turned to one side, by which this species is always 

 distinguishable from the 2-flovvered variety of the following, as 

 Dr. Stuart pointed out to me long ago, though many botanists 

 have confounded them. Bracteas 2, broad and membranous j 

 the uppermost with a leafy upright point, rising much above the 

 flowers ; the under short, deflexed and pointless. Calyx-leaves 

 equal, eUiptic-oblong, keeled, membranous at the edges. Fitam. 

 6, capillary, longer than the calyx. Anth. short, twisted. Caps. 

 longer than the calyx, abrupt ; valves light brown, with black 

 edges. Seeds oval, brown, pellucid, with a lateral, membranous, 

 whitish, pointed tunic, lengthened out at each end. 



The bractea does not *' force the fruit to one side," for the flowers 

 are always unilateral. 



