238 PROCEEDINGS COTTESWOLD CLUB 1914 



For a long time I was doubtful whether we have true 

 H. repens in Britain : nothing that could lay any claim to 

 come under the species showed fruit ; nearly everything was 

 unsatisfactory, in some degree, in other ways. But at last, 

 Mr G. Webster, of York, who sent me his collection of Helo- 

 sciadium forms last year, was able to show me late gathered 

 specimens of H. repens from Skipwith, E. Yorks., one of 

 which exhibited the typical fruit of the species. It has long 

 been known from that locality, but its identity is only now 

 conclusively established, and the final and conclusive proof 

 is here published for the first time. I do not certainly know 

 any other locality for it in Britain, though it is hardly likely 

 to be limited to one spot. There is, in fact, a specimen in 

 Mr F. G. Hanbury's herbarium (collected by Syme, whose 

 herbarium is incorporated in Mr Hanbury's) which in all re- 

 spects except fruit comes nearer it than any other gatherings 

 I have seen ; it is from Kinghorn Loch, Fifeshire, 1870. It 

 may also grow at Port Meadow, Oxford. 



Gloucestershire is, apparently, not rich in nameable forms of 

 H. nodiflorum, nor have I seen anything which could colourably 

 be supposed to come under H. repens. But another species, H. 

 inundatum, has more local interest. This is a small, slender 

 aquatic plant, usually quite submerged and floating in ponds 

 and canals, but sometimes growing temporarily in a prostrate 

 form on drying up mud. It has normally a considerable 

 number of tiny submerged two (or three) rayed umbels of 

 white flowers with oblong fruit rather narrowed below, and 

 very short or even sessile styles ; its leaves are divided and 

 subdivided into capillary segments, except those nearest the 

 top, where the segments are wedge-shaped. The plant grows 

 in profusion in some parts of the Thames and Severn Canal, 

 especially in the vicinity of the Sapperton Tunnel, and it is 

 also found in upland ponds, e.g., on Tidenham Chase, at 

 700 or 800 ft. above sea level. 



From Gloucestershire, in the Thames and Severn Canal, 

 I have seen specimens which must be put under var. fluitans 

 Fries. This variety has (I believe) never before been recorded 

 for the British Isles ; and some may doubt whether it is worth 



