The Bulletin 11 



TABLE No. 4. 



Showing the Fii-ty Weed Seeds of Most Common Occurrence, 

 Found in All of the Samples Tested for Purity. 



(849 Samples Examined.) 



Scientific Name 



1 Rumcx acetoscUa 



2 Rumcx crispus 



3 Plantago lanceolata 



i Mcdicago lupulina 



5 Plantago Rugelii , 



6 Lychnis alba 



7 Alopecurus agrestis 



8 Chffitochloa viridis 



9 Potcntilla monspeliensis. 



10 Achillea millefolium 



11 Cerastium vulgatum 



12 Juncua sp 



13 Geranium dissectum 



H Daucus carota 



15 Lepidium apetalum. 



16 Bromus secalinus 



17 Cbenopodium album 



18 Mc'lilotus alba 



19 Sherardia ar\'cnsis 



20 Bromus hordeaceus 



2! Chaetochloa glauca 



22 Ambrosia artemistefolia.. 



23 Vicia hirsuta 



24 Anthyllis vulneraria 



25 Kocllia sp 



26 Bursa bursa-pastoris 



27 Polygonum porsicaria... 



28 Carex ccphalophora 



29 Prunella vulgaris 



30 Agrostemma githago 



31 Panicularia amcricana .. 



32 Holcus lanatus 



33 Rudbcckia hirta 



34 Lolium tcmulcntum 



35 Veronica arvensis 



36 Syntherisma sanguinale. 



Common Name 



Field Sorrel 



Curled Dock 



Buckhorn 



Black Medirk 



Rugel's Plantain 



White Campion 



Slender Foxtail 



Green Foxtail 



Rough Cinqucfoil 



Yarrow 



Mouse-ear Chickweed. 



Rush 



Cut- leaved Cranesbill. 



Wild Carrot 



Pepi>ergrass 



Chess 



Lamb's Quarters 



White Sweet Clover 



Blue Field-madder 



Soft Chess 



Yellow Foxtail 



Western Ragweed 



Hairy Tare 



Kidney Vetch 



Mountain Mint 



Shepherd's Purse 



Lady's-thumb 



Oval-headed Sedge 



Heal-all 



Corn Cockle 



Manna Grass 



Velvet Grass 



Black-eyed Susan 



Darnel 



Corn Speedwell 



Crab-grass 



Found in 



208 samples 

 197 samples 

 182 samples 

 177 samples 

 118 samples 

 110 samples 

 109 samples 

 81 samples 

 80 samples 

 63 samples 

 61 samples . 

 60 samples 

 57 samples 

 56 samples 

 55 samples 

 55 samples 

 50 samples 

 49 samples 

 47 samples 

 45 samples 

 40 samples 

 39 samples 

 37 samples 

 37 samples 

 35 samples 

 34 samples 

 31 samples 

 2%samples 

 29 samples 

 27 samples 

 25 samples. 

 23 samples 

 22 samples 

 20 samples 

 20 samples 

 18 samples 



