ERIOPHORUM. 363 



Scirpus Sm., E. E. 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. alpinum (L.); st. triquetrous, scabrous, 1. very short, 

 spike oblong. E. B. 311 (excl. the leafy shoot). R. 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, 1. long setaceous triquetrous-channeled, 

 upper sheath inflated leafless. E. B. 873. R. viii. 289. Bogs 

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



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

 sheath, spike 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. VIIL] S. 



ft Spikes more than one. 



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

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

 elliptic-acuminate or obovate triquetrous. E. B. 564. 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. j8. minus; st. and.l. 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. 2633. E. polystachion 

 E. B. 563. A tall rather slender plant. L. about 2 lines 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. 



R2 



