2 ROBERTS : YORKSHIRE ALIEN" AND CASUAL PLANTS. 



CEnanthe crocata L. Near the canal at Woodlesford. 

 Torilis nodosa Gaert. Field at Methley ; Ardsley. 

 Asperula cynancliica L. Marl quarry near Aberford. 

 Dipsacus sylvestris L. Railway banks and quarry sides at 

 Knottingley. 



Cephalaria syriaca Schrad. Waste ground at Sandal. 

 Eupatorium cannabinum L. Deep ditches near Womersley. 

 Erigeron acris L. Fairburn; Castleford. 



Inula conyza L. Fairburn ; Castleford. I have always found 



these two species growing together. 

 Matricaria chamomilla L., var. discoidea. Clover field at 



Methley. 



Senecio erucaefolius L. Aberford ; Castleford. 



Ambrosia artemisiaefolia. Clover field at Methley. 



Centauria solstitialis L. ^^"aste ground at Sandal, in two places. 



Centauria melitensis L. ( = coUina). Clover field at Methley. 

 (A Maltese plant growing with increasing frequency about 

 flour mills in many parts of the country. ' Below Yore Mills^ 

 Aysgarth, abundantly in 1884 and 1885.' F. A. Lees.) 



Carduus nutans L. Methley. 



Carduus tenuiflorus Curt. Old quarry at Sandal. 



Atractylis sp. Field at Methley. 



Cicborium endivia Don. Clover field at Methley. 



Lactuca virosa L. Old quarry at Sandal. 



Lysimacbia vulgaris L. Ditches at AVressle, E.R. 



Lysimacbia nummularia L. Wressle ; Fairburn. 



Anagallis arvensis L., var. cserulea. Waste ground at Sandah 



Hottonia palustris F. Fairburn ; marsh at Stanley. 



Ligustrum vulgare L. Common on waste ground, and in the 

 hedges in lanes below Castleford, apparently native. 



Gilia capitata Don. Methley. 



Amsinckia lycopsoides Lehm. Methley. (Like the Centaurea 

 above mentioned this, too, is now occurring all over the 

 country wherever the siftings of Californian grain get on the 

 land. It has turned up during the last three or four years at 

 Bingley ( JVes^), Conisborough {^Hasselby^ Z^^), Aysgarth, Goole, 

 Tadcaster, Mirfield, &c.— F.A.L.) 



Ancbusa sempervirens L. Waste ground at Sandal. 



Litbospermum officinale L. Lane between Castleford and 

 Ferrybridge. 



Myosotis collina Reich. Near Aberford. 



Atropa belladonna L. Abbey grounds, Knaresborough, 1884; 

 a reappearance. 



Naturalist, 



