EKIOPHORUM:. 453 



ribbed shorter than the spikelet, bristles 3 6 strong persistent 

 with declining- teeth, 1. flat rough on the edges and keel. 

 E. B. 791. J2. viii. 293. Scirpus caricis (Retz.). St. 68 in. 

 high. Outer gl. of lowest spikelet with a subulate leaflike point 

 which often overtops the spike. Glumes reddish brown. Nut 

 lenticular, crowned with the long persistent style, shining. 

 Boggy pastures. P. VI. VII. E. S. 



2. B. rufus (Link) ; spikelets 2 4-flowered, outer g-1. smooth 

 as long as the spikelet, bristles 16 slender deciduous with 

 patent or ascending teeth, 1. channelled not keeled smooth. 

 E. B. 1010. St. 85. 7. #. viii. 293. Scirpus (Schrad.). St. 

 slender. Gl. dark brown, polished. Nut ovate, with a long 

 beak, opaque. [Length of bract very variable even on the same plant.] 

 Marshes near the sea on the Northern and Western coasK 

 P. VII. E. S. I. 



8. ERIOPH'ORUM Linn. Cotton-grass. 

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



[1. E. alpinum (L.) ; st. triquetrous rough, 1. very short, spike 

 oblong. -E. B. 311 (excl. the leafy shoot). R. viii. 288. St. 10. 

 A slender elegant plant. Moss of Restenet, Forfar ! (but long 

 lost through drainage). P. VI.] S. 



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



2. E. vagindtum (L.) ; caespifose, st. trigonous above round 

 below, spike oblong, nut obovoid, 1. long setaceous triquetrous 

 channelled, upper sheath inflated leafless. E. B. 873. R. viii. 

 289. Bogs and moors. P.V. Hare's-tail Cotton-grass. E.S.I. 



ft Spikes more than one. 



^ 3. E. polystdchion (L.) ; st. nearly terete, peduncles smooth, 1. 

 linear channelled their upper half triangular, nut elliptic-acu- 

 minate or obovoid triquetrous. About a foot high and rather 

 slender. L. triangular through more than half their length. 

 Bristles 3 or 4 times as long as the spikes. E. B. 564. R. viii. 

 291. ft. minus ; st. and 1. very slender. E. gracile Srn., E. B. 

 2402 (not Koch}. An alpine form has but one nearly sessile 

 spike. E. capitatum Don. E. B. 2387. y. elatius (Koch); 

 st. strong tall, 1. 23 lines broad the triangular part com- 

 mencing above the middle. Bogs, ft on mountains. P. V. 

 VI. Common Cotton-yrass. E. S. I. 



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

 peduncles asperous, 1. linear, nearly flat contracted above the 



