FLORA OF THE EAST RIDING OK YORKSHIRE. I37 



1006. Lactuca muralis. Fresen., 69. 



(Wall Lettuce). 

 Native, Eng., 3, 4. Aug., II. 



Common in all wold woods from Flambro' to S. Cave.'''' 



Rhagadiolus stellatus. Gcertn. 

 Alien. 

 Frequent among the dock aliens. 



1009. Sonchus oleraceus. Linn, m. 



(Sow-thistle). 

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



Common in cornfields, &c. 



1 010. S. asper. Hoffm., 104. 



(Common Sow-thistle). 

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



Common in hedgerows near cultivation. 



loii. S. arvensiS. Linn., m. 

 (Corn Sow-thistle). 



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



Very common amongst growing corn. 



1012. S. palustrls. Linn. 

 Alien. 



In a damp place near a mill at Brough, introduced (C.W., 

 1897). Transplanted to the East Park, Hull, it there grows 

 to a great size. 



1013. Tragropogon pratense. Lmn., 84. 



(Goat's-beard. ' ' John-go-to-bed-at-noon "). 

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



Common in Holderness, especially along the drain banks. 

 Var. b. minus (Mill.) is occasionally found amongst the dock 

 waste aliens, Hull.* 



K 



