The BuLLETiisr 



TABLE No. 4. 



Showing the Fifty Weed Seeds of Most Common Occurrence, 

 Found in All of the Samples Tested for Purity, 



(872 Samples Examined.) 



ChEetochloa viridis 



Alopecurus agrestis 



Brassica arvensis 



Chsetochloa glauca 



Lychnis alba 



Potentilla Monspeliensis.. 



Geranium dissectum 



Chenopodium album 



Cerastium vulgatum 



Carex spp 



Achillea Millefolium 



Sherardia arvensis 



Vicia hirsuta 



Holcus lanatus 



Agrostemma Githago 



Juncus spp 



Galium Aparine 



Lolium temulentum _ 



Polygonum Convolvulus. 

 Ambrosia artemisiaefolia. 



Bromus hordeaceus 



Bromus racemosus 



Festuca myuros 



Lepidium apetalum 



Polygonum Persicaria 



Lepidium virginicum 



Koellia flexuosa 



Syntherisma sanguinalis.- 



Silene antirrhina 



Vicia sativa -.- 



Green Foxtail 



Slender Foxtail 



Wild Mustard 



Yellow Foxtail 



White Campion 



Rough Cinquef oil 



Cut-leaved Cranesbill 



Lamb's Quarters 



Larger Mouse-ear Chickweed. 



Sedges 



Yarrow 



Blue Field-madder 



Hairy Tare 



Velvet Grass 



Corn Cockle 



Rushes _.. 



Cleavers 



Darnel. 



Black Bindweed 



Ragweed 



Soft Chess 



Upright Chess 



Rat's-tail Fescue Grass 



Apetalous Peppergrass 



Lady's Thumb 



Wild Peppergrass 



Mountain Mint 



Large Crab-grass 



Sleepy Catch-fly 



Spring Vetch 



98 samples 

 95 samples 

 78 samples 

 66 samples 

 59 samples 

 56 samples • 

 53 samples 

 49 samples 

 49 samples 

 46 samples 

 44 samples 

 42 samples 

 41 samples 

 40 samples 

 39 samples 

 38 samples 

 37 samples 

 37 samples 

 32 samples 

 31 samples 

 31 samples 

 29 samples 

 29 samples 

 28 samples 

 28 samples 

 26 samples 

 26 samples 

 24 samples 

 23 samples 

 23 samples 



