1 8 DUNLOP, Alien Plants of the Warrington District. 



*Senecio viscosns, Linn. Alien. 



59. Banks of " Black Bear " Canal, near Latchford 

 Bridge, June, 1905. 



Senccio sarracenieiis, Linn. Formerly denizen, but now 

 extinct. 

 The " Flora of Cheshire," gives the following Warring- 

 ton stations for the species. 



58. Lymm, 1868; Statham Eye, below Lymm, 1859. 



59. Opposite Woolston and Bruch. 



Mersey bank, close to Warrington, opposite Latchford. 



Note.— " The plant had disappeared previous to 1886. I 

 often searched in vain for it in the district." (C.R.B.) 



The disappearance of the Warrington plants may probably 

 be explained by the abundance of specimens in the 

 Wilson Herbarium in the Warrington Museum ! 



Carlina vulgaris, Linn. Alien. 



58. Latchford, near site of old railway station, 

 15th September, 1907. Introduced with grain siftings. 

 Recorded by Warren for county 58, in " Top. Bot.,'' ed. ii., 

 p. 246. 



Carduus acant/ioides, Linn. Alien or denizen. 



58. Weaver Bank, near Aston ; and at Sutton Lock, 

 30th August, 1 891 ; denizen. (C.R.B.) 



59. Slutcher's Lane. (C.R.B.). Casual. Walton 

 Arches. (C.R.B.) 



*Cnicus eriop/iorus, Roth. Casual. 



58. Grappenhall, on waste ground, Sept., 1907. 



Silybuin Mariannni, Gaertn., = Alariana lactca^HiW. Garden 

 escape and alien. 

 58 Cliffe Lane, Grappenhall, August, 1906. 



59. Sankey ; John Peers in The Phytologist, 1863. 

 Slutcher's Lane, 30th July, 1891. (C.R.B.) 



