302 CYPERACE^. 



Streams and (rarely) ponds ; rather rare ?. P. June, July. 

 I. Harefield!; Blackst. Fasc. 46. Kuislip Eeservoir; Hind. 

 II. Thames near Strawberry Hill. 



III. Eiver Cran on Hounslow Heath. 



IV. Ejngsbury, in the Brent. 



V. Brent near Hanwell ! ; Warren. Canal at Apperton ! ; Newh. Near 

 Ealing ; Herh. Devon Instit., Exeter. Near Northolt ; Melv. 84. 

 VII. Eiver Lea at Temple Mills. 



First record: BlacJcstone, 1737. The characteristic floating leaves were 

 very noticeable at Harefield and in the Cran. 



[731. S. caespitosus, L. 



8. montanus capit. hreviori, Inst. B. H. (Blackst.). 



Cyb. Br. iii. 79. Eeich. Ic. Germ. viii. 300. 



Wet places ; very rare. P. 



I. On Harefield Moor, plentifully; Blackst. Fasc. 91. 



No other record.] 



732. S. fluitans, L. 



Gramen junceum clavatum minimum, ^c, B. Syn. (Blackst.). Isolepisfl. 



(Irv). 

 Cyb. Br. iii. 80. Eeich. Ic. Germ. viii. 298. 

 Ponds on heaths ; very rare. P. June, July. 

 I. In the bogs on Harefield Common; Blackst. Fasc. 37. 



III. Hounslow Heath! ; Hvds. ii. 18, E. B. 216. 



IV. Piece of open ground called "Whitchurch Common, at the back of 



Canons Park, bet. Stanmore and Edgware, 1827-30 ; Varenne. 

 VI. [Finchley Common ; Irv. Lond. Ft. 89.] 

 First record: Blackstone, 1737. 



733. S. setaceus, L. 



Juncellus omnium oninimus chamcBschmnus, Lob. (Pet., Blackst.). Isolepis 



setacea, B. Br. (Coop.). 

 Cyb. Br. iii. 71. Eeich. Ic. Germ. viii. 301. 

 Wet places on heaths and commons ; rare. P.? July, August. 

 I. By the canal in Sir G. Cooke's garden ; Harefield Moor ; Blackst. 

 Fasc. 47. Harefield Common. 

 IV. Woods about Highgate and Hampstead ; Pet. Midd. 

 VI. Highgate; Cooper, 104. 



VII. By the ponds on South Heath, Hampstead ; Irv, Lond. Fl. 89. In 

 several places on the heath, 1868. 

 First record: Fetivcr, 1695. 



BLYSMTJS, Panz. 



734. B. compressus, Panz. 



Cyb. Br. iii. 65. Eeich. Ic. Germ. viii. 293. 

 I. Harefield, J. F. Young ; Herb. Youvg. 



