448 97. CVPERACE.E. 



2. SCHCE'NUS Linn. Bog-rush. 



1. S. nig r leans (L ) ; st. terete naked, spikelets 5 10 col- 

 lected into a terminal roundish head overtopped by the lower 

 bract, gl. rough at the keel. E. B. 1121. St 40. 9. Root 

 of strong black fibres. St. 4 12 in. high, clothed at the base 

 with blackish-brown smooth shining scales some of which ter- 

 minate in setaceous erect leaves which are shorter than the 

 stem. Bristles variable in number, short, rough, with upward 

 spines. Stigmas 3. Anth. ending in a point. Gl. dark brown 

 or black. Turfy bogs. IJ. VI. E. S. I. 



2. S.ferrugin'eus (L.) ; st. grooved naked, spikelets lateral 1 3 slender 

 about equalling the erect sheathing bract, gl. o 6 to each spikelet reddish- 

 brown smooth on the keel. J". of S. xxiii. (1885) p. 289, t. 261. Smaller 

 and more slender than Sp. 1. L. -sheaths shorter reddish-brown, lamina 

 usually very short. Bristles about 4. Stigmas 3. Anth. with a short 

 point. L. Tummel, Perthsh. Mr. J. Brebner. P. VI. VII. 8. 



Tribe II. Scirpea. 



8. CLA'DIUM Pat. Br. Sedge. 



1. C. jamaicens'e (Crantz) ; panicles lateral and terminal 

 repeatedly compound, spikelets capitate, st. subterete leafy 

 smooth, 1. finely serrate on the margins and keel. E. B. 95u. 

 C. Mariscus (R. Br.) ed. viii. Creeping. St. 3 4 feet high. 

 L. very long, rigid, narrowed and triquetrous towards the end. 

 Fl. in each spikelet 1 3 ; but usually only one nut is produced. 

 Bogs and fens, rare. P. VII. Common Sedge. E. S. I. 



4. EYNCHOS'PORA VahL 



1. H. al'ba (Vahl) ; spikelets in a compact corymb about as 

 long as the outer bracts, stam. 2, bristles with declining teeth, 

 base of the style without teeth. E. B. 985. St. 40. 7. Slightly 

 creeping. St. 6 12 in. high. L. narrowly linear. Spikelets 

 whitish. Bristles 9 12. Filaments slender. ft. sordida ; 

 spikelets brownish, in small oval clusters, often overtopped by 

 the outer bract. Turfy bogs. P. VII. E. S. 1. 



2. R. fus'ca (Ait.) ; spikelets in an oval head considerably 

 shorter than the outer bracts, stam. 3, bristles with ascending 

 teeth, base of the style with erect teeth. E. B. 1575. St. 40. 

 H. Creeping extensively. St. 6 8 in. high. L. nearly fili- 

 form. Spikelets brown. Bristles 6. Filaments dilated. Bogs, 

 rare. South- west of England. Ireland. P. VII. VIII. E.S.I. 



