126 FLORA OF THE EAST RIDING OF YORKSHIRE. 



813. Achillea Millefolium. LUm., 112. 



(Yarrow). 

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



Common, chiefly in dry places. 



814. A. Ptarmica. Lhm., no. 



(Sneeze wort). 

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



Always in marshy spots, and commonly distributed. 



A. ligustica. 



Alien. 



Hull Docks. Mr. S. T. Dunn identifies. 



816. Anthemis tinctoria. Linn. 

 Alien. 



Common amongst the aliens, West Dock, Hull. 



817. Anthemis Cotula. Linn.. 74. 



, (Stinking Chamomile). 



Colonist, Eng., 1-7. August. 



In cornfields. Heslington Fields, &c. ; near York (B.) ; 

 near Skipwith Common (C.W.) ; Howden (J.B.). 



818. A. arvensis. Linn., 73. 



(Corn Chamomile). 

 Colonist, Eng., 1-7. juiy. 



Cornfields, Holderness. ' ' East Riding not infrequent "(B). 



819. A. nobilis. Linn., 49. 

 Colonist, Eng. July, 1 1. 



Drifiield (Y.N.U., July, 1899). 



