CAREX 553 



First record. C. riparia, Dr. Noehden, Mavor's Agr. Berks, 1809. Banks 

 of the river (at Marlow), Mr. G. G. Mill in Phyt. i. 994, 1843. 



A form, which is not unfreqiient, in which the upper male spikes 

 have a few female flowers at the base, was sent by the author to the 

 Bot. Exch. Club, 1883, from Sonning (not Ponning, as printed there". 



Sterile forms occur, probably of a hybrid origin. 



C. riparia occurs commonly in all the bordering counties. 



C. rostrata, Stokes in With. Bot. Arr. ed. 2, ii. 1059 (1787). Bottle Sedge. 



C. vesicaria, var. h, Linn. Sp. PI. 979 (1753). C. ampullacea, Good. I.e. 

 207 (1792). C. obtusangula, Ehrh. Beitr. vi. 82 (1792). 



Top. Bot. 469. Syme, E. B. x. 168, t. 1680. Nyman, 768. Fl. Oxf. 323. 



Native. Paludal. Marshes and bogs. Locally common. P. June- 

 July. Absent from considerable tracts of the country, and one 

 of the plants which is destroyed by drainage. 



Fii'st record. C. ampullacea. Plentiful at Virginia Water, Dr. Good- 

 enough, I. c. 207, 1792. See also Sm. Fl. Brit. 1007, 1800, and Bot. 

 Guide, 1805, &c. 



2. Ock. Shad well Copse, Bosioell. Frilford Heath. Cothill Bog. 



Marsh between Cothill and Abingdon. Near Abingdon. 



3. Pang. Cold Ash, rare. 



4. Kennet. Aldermaston Decoy. Snelsmore. 



5. Loddon. Virginia Water, Goodenough. Sunninghill Bog. Long 



Moor. Finchampstead. Sandhurst. Bagshot Heath. Cole- 

 man's Moor. 

 C. rostrata is recorded for all the bordering counties. 



C. vesicaria, Linn. Sp. PI. 979 (1753). Bladder Sedge. 



C.injlaia, Huds. Fl. Angl. 354 (1762). 



Top. Bot. 469. Syme, E. B. x. 170, t. 1682. Nyman, 768. Fl. Oxf. 322. 



Native. Paludal. Sides of brooks and ditches, Avet alluvial meadows, 

 marshes, &c. Rather rare and in scattered localities, attaining its 

 maximum of frequency in the flat tract of the Loddon district on 

 the London Clay. P. May-June. 



First record. Gramen cyperoides majus praecox, spicis turgidis teretibus 

 Jlavescentibus, (Bobart) Morison, Hist. Ox. iii. 242. Ad rivulos circa 

 Oxonium sed rarius observavit Bobartus, Ray, Syn. ed. 3, 420, 

 1726. 



2. Ock. Sandford. Iffley, by the Thames. 



3. Pang. In a small pond near Marlstone House. 



4. Kennet. Southcote. Aldermaston Soak. 



5. Loddon. By a pond, in a field immediately below Bisham Wood, 



Mill. Hurst, Melvill. Banks of Loddon near Loddon Bridge, 

 very beautiful specimens. Ruscombe, in several localities. 

 Whistley Green. Sandford Mill. Finchampstead. Arborfield. 



