ANACHARIS—TRIGLOCHIN. 383 
Anacharis Alsinastrum Bab. Alien. Subspontaneous 
in the Wiske and in a pond at Kirkby Wiske, in the old course 
of Codbeck in Sowerby flats, and in the Clifton Ings ditch, and 
amongst the Foss Islands near York. 
Stratiotes aloides L. Alien. Subspontaneous or planted 
in some of the ditches on the Sion Hill estate near Kirkby Wiske, 
and in a pond at Leeming, 
Alisma Plantago L. British type. Native. Area 
general. Range 0-200. Common in ponds and ditches in the 
low country. 
Alisma ranunculoides L. British type. Native. Area 
876.321. Range o-250. Frequent in ponds and ditches 
in the low country, ascending to Bellerby and Downholme 
Moor. 
Alisma natans L. Local type. Native. Area 8 7. 
Range 0-250. In the Central Valley in a pond on Carthorpe 
moor; Hebblethwaite! In the Yore district on the south side 
of Semer Water; Fi A. Lees. 
Sagittaria sagittifolia L. English type. Native. Area 
8.65.321. -Rangeo-roo. In the Central Valley about 
the Wiske at Yafforth, and in Kirkby Wiske Carr, in the ditches 
at South Stockton, and along the course of the Foss in several 
places ; also in Slingsby Carr and in the Derwent at Malton. 
Gathered in the Ainsty by George Webster. Bedale Harbour ; 
J. Wheldon. 
Butomus umbellatus L. English type. Native. Area 
8 765.321. Rangeo-roo. With the preceding in all the 
stations enumerated, and also in ditches at Snape, Pickhill, and 
Great Ayton, in the mill-cut at Masham, and in the Swale at 
Topcliffe Mill. 
Triglochin maritimum L. British type. Native. Mari- 
time. Area 5 43. Range Coast-Level. In the salt marshes 
at Middlesbrough and Coatham, and more sparingly at Scar- 
borough and about the Esk at Whitby. 
Sept. 1892. 
