FLORA OF THE EAST RIDING OF YORKSHIRE. 121 



761. A. cynancliica. Liim., 40. 



(Quinzywort). 

 Native, Eng., 3. June, IV. 



Rare. Hedge banks on Langton Wold (M.B.S.). 



762. A. arvensis. Linn. 

 Alien. June. 



Waste ground in Hull, as well as near the docks. 



763. Sherardia arvensis. Linn., 109. 



(Field Madder). 

 Colonist, Brit., 1-7. Spring and summer. 



Very common in stubble fields. 



VALERIANE^. 



764. Valeriana dioica. Linn., 73. 



(Small Marsh Valerian). 

 Native, Eng., 1-7. June, I. 



Frequent in damp places in all the divisions. 



766. V. sambucifolia. Willd., 



(Great Wild Valerian. "All-heal."). 



Native, Brit., 1-7. 



Common by the sides of dykes. 



768. Oentrantlius ruber. DC. 



(Red Valerian). 

 Denizen. Summer. 



Very abundant in the chalk pits at Hessle, where it is 

 quite naturalised, and in summer drapes the chalk in crimson. 



770. Valerianella olitoria. Poll., 99. 



(Corn Salad, or Lamb's Lettuce). 

 Colonist, Brit., 1-7. June, I. 



Frequent. At Kelsey Hill,* Spurn Point,* Heslington 

 fields (B.). 



