APPENDIX I 

 ILLUSTRATIONS OF WEED SEEDS. PLATE I. 



ALL seeds on this plate, except Nos. 4, 8, 18, and 20, 

 are shown natural size, and in two positions magnified. 

 The four specified are shown natural size, and in only 

 one position magnified. 



1. Acrid Buttercup (Ranunculus acris L.). 



2. Creeping Buttercup (R. repens L.). 



3. Corn or Field Buttercup (R. arvensis L.). 



4. Common Scarlet Poppy (Papaver Rh&as L.). 



5. Charlock (Sinapts arvensis L.). 



6. Shepherd's Purse (Capsella Bursa-Pastoris DC.). 



7. Field Pepperwort (Lepidium campestre Br.). 



8. Penny Cress (Thlaspi arvense L.). 



9. Wild Radish, White Charlock (Raphanus Raphanis- 



trum L.). 



10. Corn Pansy ( Viola tricolor L.). 



11. Bladder Campion (Silene inflata Sm.). 



12. White or Evening Campion (Lychnis vespertina Sibth.). 



13. Corn Cockle (Agrostemma Githago L.). 



14. Mouse-ear Chickweed (Cerastium triviale Link.). 



15. Chickweed (Ste I/aria media L.). 



16. Spurrey (Spergula arvensis L.). 



17. Dove's-foot Crane's-bill (Geranium molle L.). 



1 8. Cut-leaved Crane's-bill (G. dissectum L.). 



19. Rest Harrow (Ononis spinosa L.). 



20. Tufted Vetch (Vicia Cracca L.). 



21. Silver- weed (Potentilla Anserina L.). 



22. Salad Burnet (Poterium Sanguisorba L.). 



23. Wild Carrot (Daucus Carota L.). 



24. Cleavers (Galium Aparine L.). 



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