624 CHAKACEAE 



4. Kennet, In a pond on Burghfield Common, filling it to the 



exclusion of other aquatic vegetation. Two years after I could 

 not see a specimen. Veiy plentiful in a pond in Ufton Woods. 

 In a i)ond at Mortimer, near the Round Oak. 

 N. translucens^ which is a very beautiful species, is recorded for 

 Surrey and Hants, and I have found it in Bucks at Burnham. 



N. flexilis, Agardh, Syst. Alg. 124 (^1824). 

 Chara flexilis, Linn. Sp. PI. 1157, p.p. (1753). 



Groves, I.e. t. 210, 166. Syme, E, B. xii. 174, t. 1899. Nyman, 877. 

 Fl. Oxf. 366. 



Native. Lacustral. Veiy rare. A. July-August. 



First recorded, but without locality, in Britt. Contr. 187 1, but great doubt 

 exists as to the record of the name of C. flexilis by British botanists 

 before the publication of Messrs. Groves' monograph, as forms of 

 Nitella opaca were generally confounded with it. Messrs. Groves 

 do not cite th« foregoing record. First certainly found in Berk- 

 shire by the author in 1893. 



5. Loddon. In a pond near Finchampstead. 



K. flexilis is only recorded with certainty for Surrey of the bordering 

 counties. 



M". opaca, Agardh, Syst. Alg. 124 (1824). 



Chara opaca, Agardh in Bruzel, Obs. Char. 16 (1824). C. flexilis, Sm. 



E. B. t. 1070, not of Linn. N. syncaipa, Chevall., var. opaca, Kuetz. 

 Groves, 1. c. t. 210, 166. Syme, E. B. xii. 178, t. 1900. Nyman, 877. 



Fl. Oxf. 366. 

 Native. Lacustral. Ponds, ditches. Local and rather rare. May-July. 

 First found in Berkshire by the author, 1882. Included on the 



authority of Mr. W. P. Hiern in Gi'oves' Characeae, Journ. Bot. 5 



(1884). 

 1. Isis. In a ditch near Faringdon, by the Thames. 



4. Kennet. Near Aldermaston. 



5. Loddon. Field pond near Binfield Park, Rev. G. R. Bullock- 



Webster, 1895. In Virginia Water, a large form. In a pond 

 near Hurst Green. Near Ruscombe. In a pond near Finchamp- 

 stead, 1 89 1. 

 N. opaca is recorded for Suri-ey, Hants, and Oxfordshire ; and I have 

 found it in Bucks near Wycombe. 



[N . GRACILIS, Agardh, 1. c. 125. Syme, E. B. xii. 183, 1. 1903. Has been found 

 in Surrey.] 



