BOTANY. 351 



Ervsiphe communis (Wallr.) Fr. Clematis Mildew. 



On Aquilegia canadensis, Columbus, Freda Detmers; on Clematis virginiana 

 and Clematis sp. (cult.) Columbus, Aug. D. Selby, Freda Detmers; on Clematis 

 sp. ( cult.) Waynesville, W. A. Kellerman ; on Desmodium canescens, Colum- 

 bus, Aug. D. Selby. Quite common on other species of Ranunculaceae and 

 Leguminosae. 



ERYSIPHE GAI.EOPSIDIS DC. 



On Scutellaria lateriflora, Columbus, Aug. D. Selby, Wm. C. Werner; Fairfield 

 Co., Aug. D. Selby; on Stachys aspera glabra, Columbus, W. A. Kellerman; 

 on S. palustris, Columbus, Aug. D. Selby; on Chelone glabra, Ashtabula Co., 

 Sara F. Goodrich. 



Erysiphe Graminis DC. Wheat Mildew. 



Conidial stage only seen ; on Triticum vulgare, Columbus, Freda Detmers ; Lima, 

 W. A. Kellerman ; on Poa pratensis, Columbus, W. A. Kellerman ; on Agro- 

 pyrum, Ashtabula Co., Sara F. Goodrich. 



Erysiphe liriodexdri Schw. Tulip-tree Mildew. 



On Liriodendron tulipifera, Columbus, Aug. D. Selby; Fairfield Co., Aug. D. 

 Selby. Especially conspicuous by the dense felted mycelium. 



122 UNCINULA Lev. 



UXOXULA CIRCINATA C. & P. 



On Acer rubrum, Fairfield Co., Aug. D. Selby; on Acer saccharum, Columbus, 

 C. M. Weed. 



Uxcixula fxexuosa Peck. 



On Aesculus glabra, Columbus, C. M. Weed, F. M. Webster. 



UNcnsroi,A macrospora Peck. 



On Ulmus Americana, Fairfield Co., W. A. Kellerman, Aug. D. Selby, Freda 

 Detmers ; Columbus, Wm. C. Werner, Aug. D. Selby ; on U. fulva, Columbus, 

 C. M. Weed, Wm. C. Werner. 



UncinuI/A necaTOR (Schw.) Burr. ( U. ampelopsidis Peck; U. spiralis B. & C.) 

 Grape Mildew. 



General throughout the state on species of Vitis and Ampelopsis. 



Uxcixula salicis (DC.) Wint. 

 Common on willows. 



Uxcixula columbiana Selby. 



On Scutellaria lateriflora, Columbus, Aug. D. Selby. 



123. PHYLLACTINIA Lev. 



Phyllactinia suffulta (Rib.) Sacc. 



Common on Oak, Beech, Chestnut, Carpinus, Catalpa ; also on Phlox panicu- 

 lata, Columbus, Aug. D. Selby. 



