COMPOSITE. 79 



Pastures, and grassy heaths— very common. Fl. mid. June till mid. 

 Aug. 



2. C. segretum Linn. Corn Marigold. 



Cultivated fields— very common, in many places a pest. Fl. June — 

 Sept. 



ARTSMXSZA Linn. Wormwood. 



1. A. vulgaris Linn. Mugwort. 



Sandy banks, and waste ground — common ; very abundant about Lon- 

 donderry, Magilligan, and the northern part of the Antrim coast, also in 

 the Downpatrick and Newcastle district. 



TAWACBTUIVI Linn. Tansy. 



1. T. vulgar e Linn. 



Ditch banks, and by streams and graveUy lake shores — frequent, and 



well natiu-alised in many places, but probably nowhere native. Fl. Aug. 



and early part of Sept. 



Down — Seaforde ; W. Thompson. Near Killyleagh ; G. G. Hyndman. 

 Bangor ; Flor. Belf. Newcastle ; Flor. Ulst. Roadside 

 between Greencastle and Rostrevor, also plentiful in two or 

 three places on road from Comber to Newtownards ; S.A.S. 

 Between Newcastle and Kilkeel ; C. Dickson. 



Antrim— Sandy ditch banks at south end of Lisburn, a doubtful native ; 

 Templeton, 1793. Islandmagee ; Flor. Belf. Carrickfergus, 

 Curran of Larne, Ballycastle, and Rathlin ; Flor. Ulst. 

 Oldforge; Miss Maffett. Whitehead; B.N.F.G., 1863. Plenti- 

 ful by the shore at Crumlin waterfoot, and by the river 

 occasionally to Crumlin ; S.A.S. Banks of river at Cushen- 

 dall waterfoot, and near Dunseverick ; T.H.C. 



Derry — On the embankments of the Roe, and sandy ditches at Dumblane; 

 Samp's. Surv., 1814. By the Faughan near Clady, and several 

 other parts; D.M. Downhill; B.N.F.C., 1863. 



SEM-ECZO Linn, 



1. S. vulgaris Linn. Groundsel. 



Roadsides, waste ground, and among the green crops in cultivated 

 fields— very common in lowland districts, rare on mountains, but ascends 

 to the upper limits of cultivation. Flowers throughout the year, except 

 in severe winters. 



2. S. sylvaticus Linn. 



Waste ground and borders of fields, in sandy or gravelly land, and by 



