22 
Composite. 
Achillea millefolium 
Senecio vulgaris 
Sonchus oleraceus 
Crepis virens 
Leontodon autumnalis, var. eu 
genuinis 
Taraxacum officinalis 
Borraginece, 
Myosotis arvensis 
Primulacece. 
Anagallis arvensis 
Polygonacece . 
Rumex acetosa 
acetosella 
crispus 
Polygonum convolvulus 
aviculare 
persicaria 
lapathifolium 
EupJiorbiaceoe. 
Euphorbia helioscopia 
Amentacew. 
Quercus pedunculata 
Scrophularinece. 
Digitalis purpurea 
Veronica serpyllifolia 
Zabiatw. 
Prunella vulgaris 
Galeopsis versicolor 
Lamium purpureum 
Plantaginece. 
Plantago lanceolata - 
major 
Chenopodiacece. 
Ghenopodium album 
Juncacece. 
Juncus bufonius 
Graminece. 
Anthoxanthemum odoratum 
Holcus mollis 
lanatus 
Lolium perenne 
Bromus arvensis 
Poa trivialis 
procumbens 
Dactylus glomeratus 
Avena sativa 
With regard to the foregoing list, he drew attention to the 
total absence of Umbelliferae. Also the Polygonum Convolvu- 
lus was the plant which at one time covered more ground than 
any other species, appearing to smother most of the plants 
around it* Yet in untouched adjacent fields not an indi- 
vidual could be found. Classed by De Candolle as one of 
