Davis—A Provisional List of Parasitic Fungi. 
857 
MICROSPHAERA EUPHORBIAE (Pk.) B. & C. 
On Euphorbia corollata 
MICROSPHAERA GROSSULARIAE (Wallr.) Lev. 
On Sambucus canadensis 
racemosa 
MICROSPHAERA DIFFUSA Cke. & Pk. 
On Desmodium canescens 
paniculatum 
canadense 
Lespedeza violacea 
MICROSPHAERA RUSSELLII Clint. 
On Oxalis “ stricta ” 
corniculata 
ERYSIPHE GRAMINIS DC. 
On Poa pratensis 
Agropyran repens 
Gramineae vatfii 
ERYSIPHE AGGREGATA (Pk.) Farl. 
On catkins of Alnus incana 
ERYSIPHE POLYGONI DC. 
On Polygonum aviculare 
Ranunculus, delphinifolius 
abortivus 
acris 
Thalictrum dasycarpum 
Clematis virginiana 
Caltha palustris 
Aquilegia canadensis 
Parnassia caroliniana 
Lupinus perennis 
Astragalus canadensis 
Lathyrus venosus 
ochroleucus 
Amphicarpa monoica 
Geranium maculatum 
ERYSIPHE GALEOPSIDIS DC. 
Stachys tenuifolia aspera 
Chelone glabra 
