1 62 Brenchley . — The Weeds of Arable Land in relation to 
Weeds universally distributed , but absent or very rare on chalk. 
( Calcifuges.) 
Alopecurus agrestis Polygonum Persicaria 
Anagallis arvensis Veronica arvensis 
Euphorbia sp. „ hederaefolia 
Poa annua 
Besides the plants noted in the foregoing lists, a number of species 
occurred which were observed very seldom or once only during the season. 
The habitats are appended for purposes of reference. 
Ranunculaceae 
Ranunculus bulbosus 
light and sandy loam 
Cruciferae 
Arabis Thaliana 
>3 3 3 
Barbarea vulgaris 
bog peat 
n 
Brassica campestris 
sandy loam 
» 
„ oleracea 
sandy loam and chalk 
3 J 
Raphanus Raphanistrum 
sandy soil 
>3 
Sisymbrium officinale 
sand 
Resedaceae 
Reseda lutea 
chalky loam 
Caryophyllaceae 
Arenaria serpyllifolia 
chalk 
3 3 
Lychnis diurna 
sand 
Geraniaceae 
Geranium columbinum 
chalk marl 
Leguminoseae 
Vicia hirsuta 
sandy loam 
33 
„ tetrasperma 
3 3 33 
Rosaceae 
Potentilla anserina 
light loam 
Umbelliferae 
Aethusa Cynapium 
various 
3 3 
Carum Petroselinum 
heavy clay 
3 3 
Conopodium denudatum 
chalk 
33 
Daucus Carota 
>3 
Valerianaceae 
Valerianella olitoria 
chalk 
Compositae 
Centaurea nigra 
clay 
;j 
„ Scabiosa 
chalk 
3) 
Filago Germanicum 
sand 
Campanulaceae 
Campanula hybrida 
sand and clay 
Boraginaceae 
Borago officinalis 
sand 
Plantaginaceae 
Plantago media 
various 
Scrophulariaceae 
Linaria spuria 
heavy clay 
33 
„ vulgaris 
chalk and clay 
>3 
Veronica Buxbaumii 
light loam 
33 
„ serpyllifolia 
sandy loam 
Labiatae 
Glechoma hederacea 
clay 
>3 
Prunella vulgaris 
33 
Illecebraceae 
Scleranthus annuus 
sand 
