lOO FLORA OF THE EAST RIDING OF YORKSHIRE. 



545. Potentilla palustris. Scop., 99. 



(Purple Marsh Cinquefoil). 



Native, Brit., i, 2, 6, 7. June, IV. 



Lowthorpe, Hornsea M6re, and Pulfin Bend. Driffield,* 

 near River Hull, Skipwith Common (W.N.C.), near Howden 

 (J.B.), Heslington, and near York, 1820 (W. Middleton, sp. 

 in Herbm. York Mus.). 



547- Alcliemilla arvensis. Scop., m. 



(Parsley-Piert). 

 Native, Brit., 1-7. Summer. 



In cultivated fields, common. 



548. A. vulg-aris. Limu, 107. 



(Common Lady's Mantle). 



Native, Brit., 1-7. May, III. 



Scarce in Holderness, but near Cottingham, on the 

 Wolds at Risby and Hotham Park. Always poor and 

 dwarfed in the E.R. when compared with specimens from 

 higher ground and farther north. Van filicaulis (C.W.), 

 near Selby (W.N.C.), and Howden (J.B.). 



550. A. argentea. Layn., 3. 



Scot., 6. 



Once in Houghton Wood, not far from the Goodyera 

 station, probably introduced as a garden plant and then 

 escaped. Sp. in Hbm. J.J.M. 



551. Agrimonia Eupatoria. Lum., 105. 



(Agrimony). 

 Native, Brit., 1-7. July, I. 



Sparingly on the chalk. Skidby, Willerby, and N. Cave,* 

 near Selby (W.N.C), and Howden, J.B. 



553. Poterium Sang:uisorba. Linn., 74. 



(Salad Burnet). 



Native, Eng., i, 2, 3, 4. May, III. 



Chiefly on chalk, and very common ; also on gravels near 

 the sea at Atwick,* and on the gravel hills of Holderness at 

 Brandesburton and Hornsea.* 



