366 FLORA OF OXFORDSHIRE. 
Var. papillata, Wall. 
5. Isis. Port Meadow. 
Berks. Abingdon, etc. Bucks. 
Var. longibracteata, Kiitz. 
4, Ray. Noke, Marston, Merton. 
5. Isis. Port Meadow. 
Berks. Abingdon. 
Var. refracta, Kiitz. 
5. Isis. A form approaching above variety, fide Groves near Wolver- 
cote. 
C. contraria, A. Br. 
Syme, E. B. xii. 204. 1915. Nym. 875. 
Native. Lacustral. Slow streams. Rare. July, Aug. 
First record, the Author, 1883. 
5. Isis. Port Meadow. 
Northants, near Peterborough. 
NITELLA. Ag. 
N. opaca, Agar. 
Syme, E. B. xii. 178. 1900. Groves’, pl. xix. Nym. 877. 
Native. Lacustral. Ponds and shallow streams. Very rare. May, 
June. 
First record, the Author, 1884. 
5. Isis. Near Bampton, near Clanfield. 
7. Thames. Pond near Penley Hangings. 
Mem. French’s record, ‘brook near Grimsbury Wharf, on faith of 
which it is given as an Oxford plant in Groves’ list, would appear to be 
a Northamptonshire locality. 
Bucks, Northants. 
N. flexilis, Ag. 
Syme, E. B. xii. 174. 1899. Groves’, pl. xviii. Nym. 877. 
Native. Lacustral. Ditches. Very rare. June. 
First record, I. 7. Masters, 1855. 
6. Thames. Ditch beyond railway bridge near South Hinksey, 1855, 
M. T. Masters MSS. 
Warwick. 
[Tolypella intricata, Leon. Yardley Gobion, Northants.] 
