SCIRPUS 527 



Forster. Wellington College. Sandhurst. Finchampstead. 



Long Moor. Easthampstead Plain. Broadmoor. Crowthorn. 



Near South Park, Sandhurst. Near Sunningdale. Windsor 



Gjeat Park. 



In shady heaths the plant becomes much larger than the so-called 



var. nemorosus, Roth. See Ray, Syn. I.e. 



S. caespitosus is recorded for Surrey, Hants, and Wilts, and with some 

 doubt from East Gloucestershire. It is absent from Oxfordshire. 



[S. NANUS, Spreng. Pngill. i. 4 (1S13), not of Poit. S. parvulus, Roein. & Schxilt. 

 Syst. ii. 124 (1817). Syme, E. B. x. 56, t. 1591, and 



[S. CERNUUS, Vahl, Enum. ii. 245 ('1806). S. Savii, Sebast. & Maur. Fl. Rom. 

 Prod. 22. S. setaceus, Linn. Mant. 321, et Herb. Syme, E. B. x. 58, t. 1503, 

 are semi-maritime species found in South Hants, which are not likely 

 to be found in Berkshire.] 



S. fluitans, Linn. Sp. PI. 48 (1753', and Herb. Floating Club Rush. 



Isolepis Jliiifans, R. Br. Prod. Nov. Holl. 221 (i8ro). Fleogiion fluitans, 

 Link, Hort. Berol. i. 284. 



Top. Bot. 446. Syme, E, B. x. 57, t. 1592. Nyman, 766. Fl. Oxf. 320. 

 Native. Lacustral. Pools and ditches in heathy places. Probably 



absent from the north of the county, and rare in the central area, 



but locally common in the ponds on the heathy portion of the 



Loddon district. P. May-July. 

 First recorded without locality in Britt. Contr. 1871, probably found by 



Mr. J. C. Melvill. 



4. Kennet. Mortimer, Floating plants in the Kennet near Burgh- 



field Mill, Tufnail. Ufton Pond. Greenham Common. Crook- 

 ham. Aldermaston Decoy. Burghfield. 



5. Loddon. Bulmarsb. Pond at Hurst, Melvill. Sandhurst. Long 



Moor. Ascot. Bagshot. Broadmoor. Finchampstead. Spout 

 Pond. Heath Pool. In Virginia Water and in other ponds in 

 Windsor Great Park. 

 By the margins of ponds, as at Mortimer {Tufnail), it is found in 

 a condensed semi-caespitose foi'm. 



S. fluitans is recorded for all the bordering counties except East 

 Gloucestershire. 



S. setaceiis, Linn. Sp. PI. 49 vi753), P-p. not of Herb. 



Isolepis setacea, R. Br. 1. c. 222. 

 Top. Bot. 442. Syme, E. B. X. 60, t. 1594. Nyman, 766. Fl. Oxf. 320. 

 Uliginal. Marshy places, on sandy or gmvelly soil. Local and rare. 



P. July-August. 

 First found at Wootton by Mr. Boswell about 1864. See Britt. vontr. 

 1871. 

 1. Isis. Wytham. 



