24 TLORA OF THE BRISTOL COAL-FIELD. 



674* Polygonum maritimum, Linn. 



In addition to some other good things that are noted 

 in this paper, Mr. H. S. Thompson has produced a 

 specimen of the rarest British Polygonum, which 

 he gathered on Burnham sands in July, 1882. At 

 that time the discoverer was not sure of the species, 

 and therefore did not recognise the importance of 

 his find. But his specimen is undoubtedly the true 

 plant. The presence of P. maritiTnum on the coast 

 of Somersetshire has never been suspected, although 

 the great range of sandhills between Brean and 

 Burnham is similar, in some respects, to that at 

 Braunton, the North Devon habitat for the species. 



Euphorbia platyphyllos, Linn. 



This uncommon Spurge has been recorded at various 

 times for several localities in the Bristol Coal- 

 field, but the only spot in the district at which it 

 was certainly known to exist in 1883, when Part IV. 

 of the "Plora" containing the Euphorbiacese was 

 published, was a corn-field at Pilton, Grloucester- 

 shire, where it had been noticed for several years 

 in succession. Since then it has, for some time 

 past, disappeared from that station, and it seems 

 therefore worth noting that several plants of the 

 species were found last autumn (1888) by Mr. D. 

 Fry in corn-fields on Brent Knoll. Some of the 

 specimens observed were particularly fine. 



Salix triandra, L. var. /?. S. Hoffmanniana, Sm. 



Has been identified in two localities, both in North 

 Somerset. It grows in a hedge near Berrow vil- 

 lage, rather sparingly ; and in greater quantity 

 near a large pond, full of the white water-lily, 



