68 TRIANDKIA MONOGYNIA. [cL. III. 



10. ELEO'CHARIS. SPIKE-RUSH. 



Calyx a chaff-scale. Corolla none. Spikes imbricated all 

 round. Filaments hair-like. Anthers linear. Germen com- 

 pressed. Style enlarged at the base, united to the germen by a 

 narrow joint. Seed triangular, crowned by the permanent style. 

 Named from elos, a marsh, and chairo, to rejoice. 26. 



1. E. pahts'tris. Common Spike-rush. Stems round ; stigmas 



two ; seed flattened. Roots fibrous : stems many together, erect, 



smooth, from six inches to a foot and a half high : sheaths at the 

 base two or three, the upper long, close, and green, the others 

 brown : no leaves : spike egg-shaped or oblong, acute, reddish- 

 brown. Perennial : flowers in June and July : grows in ditches, 

 rivulets, and marshy ground, and at the edges of pools and lakes : 

 abundant. Eng. Bot. vol. ii. pi. 131. Eng. FL vol. i. p. 64. 88. 



2. E. multicaulis. Many-stalked Spike-rush, Stems round ; 



stigmas three ; seed acutely triangular. Root fibrous : stems 



numerous, smooth, spreading, eight or ten inches high : spikes 

 smaller and more slender than in the last. Perennial : flowers in 

 July : grows in wet moors. This seems to be merely a variety of 

 the last. Eng. Bot. vol.xvii.pl. 1187. Eng. FL vol. i. p. 64. 

 Brit. FL p. 29. 89. 



3. E. aciculdris. Least Spike-rush. Stem four-cornered ; stig- 

 mas three. Roots creeping, fibrous, thread-like : stems 



thread-like, about three inches high : leaves none, the parts 

 usually considered as such being sterile stems : spike very 

 small, narrow, elliptical, brownish. Perennial : flowers in July 

 and August : grows by the sides of lakes, and in wet places on 

 moors. Eng. Bot. vol. xi. pi. 749. Eng. FL vol. i. p. 65. 90. 



11. ERIO'PHORUM. COTTON-GRASS. 



Calyx a flat membranous chaff-scale, Corolla none. Spike 

 imbricated all round. Filaments hair-like ; anthers linear, pro- 

 truded, pendulous. Germen inversely egg-shaped. Style 

 thread-shaped 5 stigmas three, longer than the style, reflected. 

 Seed three-cornered, tapering to a point, furnished at the base 

 with very long, soft, silky hairs. Name from erion, wool, and 

 phero, to bear. 27. 



* Spike single. 



\.E.vagindtum. Hare' s-tail Cotton-grass. Stem triangular above, 

 round below; uppermost sheath inflated ; spike egg-shaped. 

 Root creeping : stems jointed, smooth, about a foot high : leaves 

 channelled, sheathing : spike large, egg-shaped, pointed, blackish, 

 with membranous scales : hairs numerous, long, white, and shining. 

 Perennial : flowers in March and April : grows on heaths, and in 

 boggy places : common. Eng. Bot. vol. xiii. pi. 873. Eng. FL 

 vol. i. p. 66. 91. 



2. E. capitdtum. Round-headed Cotton-grass. Stem round in its 



whole length ; uppermost sheath inflated ; spike roundish. 



Root creeping : stems jointed, smooth, about eight inches high : 

 leaves thicker than in the last : chaff-scales smaller, but firmer, 

 brown : hairs much shorter. Perennial : flowers in July and Au- 

 gust : grows in heaths in high situations : very rare. Ben Lawers. 

 G. Don. Eng. Bot. vol. xxxiv. pi. 2387. Eng. FL vol. i. p. 67. 92. 



