ERIOPHORUM. 363 



Scirpus Sm., E. B. 1010. St. 85. 7- R- viii. 293.— St. slender. 

 Gl. dark-brown, polished, not striate. Nut ovate, with a long 

 beak and very short stalk, opaque.— Marshes near the sea on the 

 northern and western coasts. P. VII. 



8. Eriophorum Linn. Cotton-grass. 

 * Bristles 4 — 6, at length crisped. Spike solitary. 



1. E. alpitmm (L.); st. triquetrous, scabrous, 1. very short, 

 spike oblong.— £.5.311 (excl. the leafy shoot). E. viii. 288. St. 

 10. — A slender elegant plant now nearly lost through the drainage 

 of its place of growth, — Moss of Restenet, Forfar. Mr. Brown. 

 Durness, Sutherlandshire. Prof. Balfour. P. VI. S. 



** Bristles very many, not crisped.- — f Spike solitary. 



2. E. vaginatum (L.) ; st. triangular above round below, spike 

 oblong, nut obovate, I. long setaceous triquetrous-channeled, 

 upper sheath inflated leafless. — E. B. 8/3. R. viii. 289. — Bogs 

 and moors. P. V. Hare's-tail Cotton-grass. 



\_E. capitatum (Sm.); "st. entirely round with a swelling 

 sheath, spilie roundish, glumes membranous." — E.B. 2387- — Ben 

 Lawers near perpetual snow. Mr. G. Don. Mr. Don's authentic 

 specimen (Herb. Hook.) resembles E. capitatum, but the upper 

 part of its St. is triangular. P. VIII.] S. 



tt Spikes more than one. 



3. E. angustifolium (Roth) ; st. nearly round, peduncles 

 smooth, 1. linear channeled their upper half triangular, nut 

 eUiptic-acuminate or obovate triquetrous, — E. B. 664. R. viii. 

 291. — Tall and rather slender. L. triangular through more 

 than half their length. Bristles 3 or 4 times as long as the 

 spikes. — 0. minus; st. and 1. very slender. E. gracile Sm., 

 E. B. 2402 (not Koch). An alpine form has but one nearly 

 sessile spike. — y. elatius (Koch) ; st. strong tall, 1. 2 — 3 lines 

 broad the triangular part commencing above the middle. E. 

 polystachion Sm. — Bogs. /3. in mountainous districts. P. V. 

 VI. Common Cotton-grass. 



4. E. latifolium (Hoppe) ; st. triquetrous in its upper half, 

 peduncles scabrous, 1. linear nearly flat contracted above the 

 middle into a triangular point, nut obpyriform triquetrous. — R. 

 viii. 292. E. pubescens Sm., E. B. S. 26^3. B. polystachion 

 ]■:. B. 663. — A tall rather slender plant. L. about 2 hnes broad ; 

 triquetrous point short. Several of the elegant spikes upon 

 longish stalks which are not downy but scabrous. Bristles 2 or 

 3 times as long as the spikes. Bogs, rather rare. P. V. VI. 



E 2 



