324 



CYPERACE.'E. [Oadium. 



* % Spikes many. 



2. E. polystachion, Linn. Broad-leaved Cotton-grass. " Stems 

 round; leaves flat, with a triangular point; stalks of the spikes 

 smooth ; hairs thrice the length of the spike." Smith. — E. Fl. 

 v. i. p. 67. Br. Fl. 1. p. 25. E. Bot. t. 563. 



Bog-holes on Feather-bed Mountain, County of Dublin. Fl. April 

 — June. % . — Readily distinguished from E. angustifolium by its 

 smooth, broad and flat leaves, which have a narrow acute keel : in 

 other characters it very much resembles it. 



3. E. pubescens, Sm. Downy-stalked Cotton-grass. " Stem 

 angular upwards ; leaves flat, lanceolate, with a triangular 

 point ; stalks of the spikes downy ; hairs twice the length of 

 the spike." Smith. E. Fl. v. i. p. 68. Br. Fl. 1. p. 25. 

 Hook, in E. Bot. Suppl. t. 2633. 



Marsh near Enniskerry, and other places in the County of Wicklow. 

 Fl. April— June. %. — This may be readily distinguished from the 

 following species by its flat, broader, and shorter leaves, and pubescent 

 or rather scabrous peduncles. Mr. Winch of Newcastle first drew my 

 attention to it, at the marsh near Enniskerry, as being the true E. pu- 

 bescens. I had previously supposed it to be E. polystachion of E. 

 Bot. 



4. E. angustifolium, Roth. Common Cotton-grass. Stem 

 nearly round ; leaves linear, triangular, channelled towards the 

 base ; stalks of the spikes smooth ; hairs four times the length 

 of the spike. Br. Fl. 1. p. 25. E. Fl. v. i. p. 69. E. Bot. 

 t. 564. 



Turf-bogs and muddy places, common. Fl. April. 1£. — Varying in 

 size, and in the length and breadth of its leaves. When growing in 

 bog-holes, it assumes the appearance of E. polystachion of E. Bot^ 

 and is probably only a variety of that species. 



7. Cladium. Schrad. Twig-rush. 



Perianth single, glumaceous. Glumes of one piece or valve, 

 one-flowered, imbricated ; outer ones sterile. Fruit, a nut 

 with a loose external coat, destitute of bristles at the base. — 

 Name from ic\aco<:, a branch ; so called, perhaps, from the 

 many branches bearing spikelets. 



Diandria. Monogynia. 



1. C. Mariscus, Br. Prickly Twig-rush. Panicle much 

 divided, leafy ; spikelets capitato-conglomerate ; stem rounded, 

 leafy ; margins of the keels and leaves rough. Br. Fl. 1. p. 13. 

 E. FL v. i. p. 36. — Schcenus Mariscus, Linn. E. Bot. t. 950. 



By the sides of small lakes in Cunnamara, abundant. County of 

 Fermanagh ; Doctor Scott. Bog near Lough Allan, County of Cork ; 

 Mr. J. Drummoncl. Fl. July, Aug. % .—In habit very different from 



