32 Mr Webster on Carnarvonshire Plants. [sess. li. 



decayed vegetable matter, largely mixed with gritty rock, 

 that from time to time is washed down from the hills above 

 by the force of the rivulets which feed the lake. Occurring 

 in such plenty as to sometimes almost impede a boat's course, 

 this proves that the plant, although local in its distribution, 

 is yet fairly abundant in its one known station. Annihilate 

 it botanists never can, for no boat is kept on that lonely 

 lake, and when taken, as it occasionally is by its owner for 

 fishing, it must be borne by half a dozen stout men for 

 several miles, and over the roughest ground. 



A good idea of this new plant can be formed by tying a 

 portion of the stem and leaves of the North American 

 F. Claytonii on that of P. longifolius, the floating leaves 

 closely resembling those of the former, and the basal or 

 submerged leaves those of tlie latter. 



The stem is branched, and 5 to 6 feet long; lower leaves 

 alternate, about 1 foot long ; upper or floating leaves oppo- 

 site, and usually about half the length of the submerged 

 leaves ; lower leaves amplexicaul, upper leaves with foot 

 stalk as much' as 5 inches long ; spike fully an inch long by 

 1% inch in diameter, and remarkably close set. In the 

 specimen accompanying these notes a good idea of the plant's 

 general appearance may be obtained, but as it is destitute 

 of flowers the above description must serve until oppor- 

 tunity allows of my procuring fresh specimens, which will 

 Ije despatched to the Society's herbarium at once. 



On a sujipo-scd New British Species of Sttgina. By F. 

 Buchanan White, M.D., F.L.S., F.E.S. 



(Roa<l lltli November 1S86.) 



Last Auiiust 1 received from Mr A. H. Evans, and after- 

 wards from Mr W. B. Boyd himself, living specimens of a 

 plant, with the information that it was supposed to be a Sagina, 

 and to have been got on the Glen Callater hills, and that no 

 (jne had been able to determine its name. The peculiar 

 beauty of the plant itself, the possibility of its being a 

 member of our own ali)iuo flora, and the mystery attaching 

 to it, r'oiuliiiiiMl to induce me to try to discover something 

 about it, and 1 now lay the result of my investigations 

 before the Society. 



