Brenchley . — The Weeds of Arable Land . III. 
Artemisia vulgaris 
Cichorium Intybus 
Crepis virens 
Euphorbia Helioscopia 
Linaria vulgaris 
probably characteristic. 
Aethusa Cynapium 
Centaurea nigra 
Anthemis arvensis 
Arenaria serpyllifolia 
Atriplex patula 
Carduus nutans 
Centaurea Scabiosa 
Filago germanica 
Geranium molle 
„ pusillum 
Raphanus Raphanistrum 
Reseda lutea 
Satureia Acinos 
Silene noctiflora 
| also on loam. 
also on sandy soils. 
Papaver Rhoeas — also on sand and loam. 
Weeds of General Occurrence. 
Besides the species which are definitely associated with particular soils, 
there are a good many plants which occur indiscriminately on any and 
every kind of land, while others, though absent from one type of soil, are 
otherwise universally distributed. Into this category come the following : 
Agrostis stolonifera 
Brassica Sinapsis 
Capsella Bursa-pastoris 
Caucalis nodosa 
Cerastium vulgatum 
Chenopodium album 
Cirsium arvense 
Convolvulus arvensis 
Daucus Carota 
Galium sp. 
Lamium purpureum 
Lychnis alba 
Matricaria inodora 
Mentha arvensis 
Plantago lanceolata 
„ major 
\ 
- universally distributed. 
