136 Wisconsin Academy of Sciences, Arts, and Letters. 
Hieracium murorum, Lactnca muralis, Pulmonaria officinalis 
nor Symphytum tuberosum. 
Conidia from Plantago major will not infect the same host 
P. major, Artemisia vulgaris, nor Hieracium murorum. 
Conidia from Lappa major will not infect Artemisia vulgaris 
nor Senecio vulgaris. 
Conidia from Verbascum thapsiforme will not infect Arte¬ 
misia vulgaris. 
Conidia from Pulmonaria officinalis will not infect Hieracium 
murorum. 
Conidia from Litliospermum arvense will infect L. arvense but 
not Hieracium murorum, Pulmonaria officinalis, nor Symphy¬ 
tum tuberosum. 
2. Conidia of E. polygoni DC. from Heracleum spondylium 
will infect H. spondylium but not Aegopodium podagraria, An- 
thriscus silvestris, nor Hypericum montanum. 
Conidia from Galium silvalicum will infect G. silvaticum but 
not Aegopodium podagraria, Ranunculus repens, Senecio vul¬ 
garis, nor Vicia sepium. 
Conidia from Ranunculus repens will infect R. repens but 
not Galium silvalicum. 
Conidia from Trifolium incarnation will infect T. incarnatum 
but not Galium silvaticum, Hypericum montanum, Trifolium 
repens, nor Vicia sepium. 
Conidia Prom Hypericum perforatum will infect H. perfora¬ 
tum but not H. montanum nor Galium silvalicum. 
3. Conidia of E. galeopsidis DC. from Galeopsis tetrahit 
will infect G. tetrahit but not Calamintha acinos, Glechoma 
hederacea, nor St achy s rectea. 
4. Conidia of Microsphaera astragali DC. (Nev.) from 
Astragalus glycyphyllos will infect A. glycyphyllos and A. ciccr 
but not Robinia pseudoacacia nor Vicia sepium. 
5. Condia of Uncinula salicis DC. (Winter) from Salix 
purpurea will infect S. purpurea and S. caprea. 
6. Conida of Uncinula aceris DC. (Sacc.) from Acer pseu- 
doplatanus will infect A. pseudoplatanus and A. campestre. 
7. Conidia of Phyliaclinia corylea (Pers.) Karst, from Cory- 
lus avellana will infect G. av ell ana. 
