1013 



fresh or brackish ; most likely common along the coast. In marsh- 

 meadow ditches behind Ryde Dover, abundantly, and in Brading 

 marshes, in profusion. Marsb-ditches between Brading and St. He- 

 len's, Mr. Fred. Townsend !!! Ditches in the marsh near Easton, Mr. 

 W. D. Snooke in Fl. Vect. !!! 



Potamogeton zoster ace us, Bab. Man. (not of Fries, according to 

 Mr. Borrer). In the Avon, in the meadow next above the bridge at 

 Christchurch, where the river is quite full of it, Mr. Borrer ! 



Potamogeton pectinatus. In ditches, pools, &c, both fresh and 

 salt. Ditches around Sandown Fort, 1842, and in those on the 

 marshes at Brading, 1844. In a small pool on the marshes at Barn- 

 field, near Yarmouth, July, 1844. Marsh-ditches at Easton (Fresh- 

 water Gate), Mr. W. D. Snooke in Fl. Vect., where it occurs in great 

 profusion, and seems to be the large-fruited salt-water variety of the 

 plant, the P. marinus of Linn., &c. !!! Ditch at Hill Head (near Fare- 

 ham), Mr. W. L. Notcutt !, and most likely common over the county, 

 principally, perhaps, on the coast. 



Potamogeton densus. In ditches, pools, rivers and slow streams 

 (always in fresh water ?) ; common, no doubt, in the county. Marsh- 

 ditches at Sandown, and abundantly in those at Easton, Freshwater 

 Gate. Cattisfield ; pond at Uplands ; Hill Head ; (all near Fareham) : 

 Mr. W. L. Notcutt. Anacharis Alsinastrum, or at least the Hamp- 

 shire (Leigh Park) plant included under that name, but which a re- 

 cent examination has convinced me does not differ in any essential 

 particular from Udora verticillata of North America, when growing 

 immersed in its native waters, bears no slight resemblance to small 

 states of this Potamogeton, which may possibly be the main cause of 

 the former existing so long unobserved in this country. 



Ruppia maritima. In salt-water ditches and pools; frequent. 

 Ditches behind Ryde Dover. The ditches between Springfield and 

 Old Fort are almost filled with this and Zanichellia. In salt-ditches 

 about Yarmouth and Freshwater, plentifully. Common, I think, all 

 along the coast of Hants about Lymington, Portsmouth, &c. I am 

 not just now prepared to say to which of the two species or varieties 

 (R. maritima or R. rostellata, given as British in the ' Manual ') our 

 common Hants plant should be referred, but I believe rather to the 

 latter. It is probable, however, that we may possess both. 



Zanichellia palustris. In ponds and ditches, both of fresh and 

 salt water ; not uncommon in the Isle of Wight, and I conceive pro- 

 bably as frequent on the mainland of the county. Ditches behind 

 Ryde Dover, plentifully, and profusely in those between Springfield 



