369 



Myriophyllum alterniflorum. Abundant in some of the marsh 

 ditches in Sandown Level, and in pools in several places in the Isle 

 of Wight, alone or mixed with the last, but I think perfectly distinct 

 from it as a species. 



Hippuris vulgaris. Apparently not uncommon in Hants, but very 

 rare in the Isle of Wight, where it grows only in a few ditches on 

 Sandown Level. In a wet meadow near Bishop's Waltham. Com- 

 mon in rivers and ditches about Winton. In Winnal water-meadows, 

 on the north side of that city of deep, rapid, and translucent streams, 

 I find it of most luxuriant growth, with stems completely submerged 

 and leaves often deeply cleft. 



CallUricke verna. Pools and ditches everywhere. 



platycarpa. Frequent on the wet margins of pools, &c, 



in the Isle of Wight, and probably all over the county, but its dis- 

 tinctive characters seem to me very questionable, and just such as 

 difference of locality might be supposed capable of creating. 



pedunculata. A plant which I suppose to be this, but 



which I have not yet minutely examined, grows in several places in 

 the Isle of Wight, chiefly in deep still waters of ditches and drains, 

 but not very commonly. 



Bryonia dioica. An extremely common and ornamental vine in 

 hedges and thickets all over the county ; rather less frequent on the 

 mainland close by the sea, though still far from uncommon about 

 Portsmouth, in Hayling Island, and elsewhere along the coast. By 

 no means rare in the Isle of Wight, but almost wholly confined to the 

 chalk and greensand of the interior and central part of it, about New- 

 port, Carisbrook, Gatcomb, Buccombe, &c, shunning the line of coast 

 through its entire extent, even where those rocks predominate, so that 

 not a single specimen has occurred to my observation anywhere near 

 Ryde, Brading, Shanklin, or in the Undercliff, whilst it is equally 

 wanting at Cowes and everywhere to the westward of that place. A 

 specimen or two has indeed strayed as far as Freshwater parish, and a 

 few plants are scattered about Shorwell within a couple of miles of 

 the south-west shore ; with these very partial exceptions, the bryony 

 is absent over a broad belt of country embracing perhaps two-thirds 

 of the island, and which defines the limits of two other species with 

 nearly equal exactness, namely, Campanula Trachelium and Rham- 

 nus catharticus, that grow chiefly, if not exclusively, on the chalk, 

 yet are not found to follow the extension of that formation coastways. 

 That an extreme maritime or insular locality does not suit the bryony, 

 is apparent from its increasing scarcity westward, and its total absence 



