100 
MENTHA. 
802. M. rotundifolia, Linn. Native. English. 
Studley Woods — Rev. J. Dalton. Saltburn, by the sea in a dry 
sandy place — Robson , (B. Gr. 698.) Adwick, near Doncaster — P. 
Inchbald, (Phyt. iii. 448.) 
803. M. sylvestris, Linn. Native. English. 
Mickley barrows, near Papon — T. Simpson. 
804 M. viridis, Linn. Denizen. English. 
Riverbanks and damp places ; not unfrequent. Ditches and banks 
of the XJre, near Papon — W. Brunton. Banks of the river Swale, 
half a mile from Copgrove towards Newby — Rev. J. Dalton , (B. Gr. 
678.) Between Spennithorne and Harmby — Rev. R. Pulleine. Cot- 
terfoss ; Hazel Bush, and roadside beyond Strensall, near York — 
O. A. Moore. In the lane between Sand Hutton and Upper Helmsley 
— H. Ibbotson. Between Kirby Wiske and Mawnby — T. Simpson. 
Sowerby lane and other places near Thirsk. Might probably be 
considered a true native without much risk of error. 
805. M. piperita, Linn. Native. English. 
In similar situations ; frequent. 
806. M. aquatica, Linn. Native. British. 
In similar situations ; common. M. liirsuta, Flora , 82, includes 
both this species and a form of M. sativa. M. citrata, Ehrh., now 
usually ranged here as a variety, grows in the vicinity of Ingleton — 
S. Thompson , J. Backhouse, Jun. ; and has also been reported to 
occur near Malton. (Vide B. Gr.) 
807. M. sativa, Linn. Native. English. 
M. liirsuta in part, acutifolia, rubra, and gentilis, Flora, 82. In similar 
situations ; not unfrequent in some of its forms. M. pratensis, 
“ Sole,” grows at Belcombe brook, near Bradford — Rev. J. Dalton. 
808. M. arvensis, Linn. Native. British. 
809. M. pulegium, Linn. Native. English. 
In great abundance by the roadside between York and Haxby — A. 
Shipley. On Stockton common, near York — J. Backhouse, Jun. 
THYMUS. 
810. T. Serpyllum, Linn, Fries. Native. British. 
Amongst the moorlands and in dry, heathy situations ; plentiful. 
810b. T. ChamjEdrys, Fries. Native. British. 
Tilmire, near York — H. Ecroyd Smith. Howe hill, near Malton — 
M. B. Slater. Perhaps it may not be uncommon in similar situa- 
tions to the preeeeding in the lower zone, but at present I can only 
quote for it the two localities mentioned above. Doubtless a truly 
distinct species. 
