52 ENGLISH BOTANY. 



stems, and towards the apex of the branches solitary stems ; the old 

 portion nearly black, the young whitish with darker scales at intervals. 

 Stems () inches to 2 feet high, erect, with 2 reddish brown sheaths at 

 the base, the lowest one obliquely truncate, the upper transversely so. 

 Spike ^ inch to 1 inch long. Glumes brown, usually with a green 

 keel. Nut shorter than the bristles, dim, yellowish, J- inch long in- 

 cluding the tubercle, which is scarcely half as long as the nut. 



Marsh Cluh-rush. 

 French, Scirpe dcs marais. German, Siimnfried. 



Sub-Species II. — Scirpus uniglumis. Link, 



Plate MDLXXXVII. 



BeicJ,. Ic. Fl. Germ, et Helv. Vol. Vlll. Tab. CCXCVI. Fig. 703. 

 (H)Eleocharis uniglumis, Beich. Fl. Germ. Excurs. p. 632, et Auct. Plur. 



Glumes chocolate-brown, usually concolorous, with narrow white 

 scarious margins; lowest glume broadly ovate, obtuse, almost wholly 

 surrounding the base of the spike. Nut faintly punctate-striate under 

 an ordinary lens. 



Var. a, genuinus. 

 (H)Eleocliaris uniglumis, Ba&. Man. Brit. Bot. ed. vi. p. 371. 



Nut shorter than the bristles. 



Var. 0, Watsoni. 



(H)Eleocharis Watsoni, Bah. Ann. Nat. Hist. ser. ii. vol. x. p. 20, and Man. Brit. 

 Bot. ed. vi. p. 571. 



Nut longer than the bi'istles, more distinctly punctate-striate than 

 in var. a. 



In wet sandy places, and by the borders of ditches and rivers, near 

 the sea. Local. Rare in England, where it is found in Dorset, 

 Sussex, and near Southport, Lancashire. In Scotland I have found it 

 at Gullane Links, Haddington; near Blackness Castle, Linlithgow; by 

 the side of the Dee, near Waterloo Bridge, Kincardineshire ; Kinloch- 

 Spelive, Mull ; and Swanbister, Orkney ; Dr. Dickie mentions its occur- 

 rence on Aberdeen Links, and Professor Babington at Barvas, Lewis. 

 In Ireland Dr. D. Moore states it is plentiful in a marshy pasture field 

 between Killoughter Station and the lake near the Murrough of Wick- 

 low. Var. /3 has been found at Southport, Lancashire, by Dr. Car- 

 ington, and at Tayanloan, Argyleshire, by Dr. Balfour. 



England, Scotland, Ireland. Perennial. Summer, Autumn. 



Extremely similar to S. eu-palustris, but smaller, usually from 3 to 6 



