[Vol. 2 



412 



ANNALS OF THE MISSOURI BOTANICAL GARDEN 



vated in soil from a carrot field known to bo infected, and the 

 following weed hosts are noted: Stellaria media, Myosotis 

 arvensis, Galeopsis Tetraliit, Erysimum cheiranthoides, Urtica 

 dioica. 



This would indicate that a careful study of any epidemic 

 would confirm the view that the number of hosts is consider- 

 able. The following is a list by families of the host plants 

 which have been reported in the more accessible literature : 



Pinaceae 



Abies pectinata 

 Picea alba 

 Picea excelsor 

 Pinus Laricio 

 Pinus montana 



Liliaceae 



Asparagus officinalis 



Crocus sativu; 

 Lilium sp. 

 Muscari sp. 

 Narcissus sp. 

 Tulipa sp. 



Urticaceae 



Ficus silvatica 

 Humulus Lupulus 



Urtica dioica 

 Polygonaceae 

 Rumex crispus 



Chenopodiaceae 



Beta vulgaris 



Chenopodium album 



Caryophyllaceae 



Spergula arvensis 

 Stellaria media 



Cruciferae 



Brassica campestris 



Brassica Rapa 



Crambe maritima 

 Rosaceae 



Crataegus oxyacantha 



Pyrus Malus 

 Leguminosae 



Anthyllis vulneraria 



Coronilla varia 



Medicago lupulina 



Medicago sativa 



Melilotus alba 



Leguminosae 



Onobrychis sativa 

 Ononis spinosa 

 Ornithopus sativus 

 Phaseolus sp. 

 Trifolium hybridum 

 Trifolium pratense 

 Trifolium repens 



Vicia Faba 

 Geraniaceae 



Geranium pusillum 

 Rutaceae 



Citrus Auranlium 



Vitaceae 



Vitis sp. 

 Umbelliferae 

 Daucus Carota 

 Erysimum cheiranthoides 

 Foeniculum vulgare 

 Pastinaca sativa 



Oleaceae 



Ligustrum vulgare 



Convolvulaceae 



Convolvulus arvensis 



Boraginaceae 



Myosotis arvensis 

 Labiatae 



Galeopsis Tetraliit 

 Solanaceae 



Solanum tuberosum 

 Rubiaceae 



Rubia tinctoria 

 Caprifoliaceae 



Sambucus Ebulus 

 Compositae 



Taraxacum officinale 



Sonchus arvensis 



Sonchus oleraceus 



