lyo The Ohio Naturalist. [Vol. X, No. 7, 



Host plants in Ohio Herbarium: Vitis quinquefolia, Cuyahoga Co., 

 E. Claassen; Parthenocissus quinquefoUa, Columbus, W. A. Kellerman; 

 Vitis (cult), Columbus, W. A. Kellerman; Ampelopsis quinquefolia, 

 Columbus, H. H. Richardson, C. M. Weed, W. A. Kellerman, Oberlin, 

 Toledo, F. D. Kelsey. 



Uncinula macrospora Peck. Mycelium thin; perithecia 

 95-165 //; cells 10 ijl; appendages 50-130 in number, ^-1 times 

 diameter of perithecium, nonseptate, colorless, thicker-walled 

 toward base; asci 8-14, often curved, 54 x 29-65 x 35 fi; spores 

 2, 30 X 16 ft. 



Host plants in Ohio Herbarium: Ulnus americana, Wyandotte Co., 

 Thos. Bosner, Columbus, W^. C. Werner, Fairfield Co., W. A. Kellerman; 

 Ulmus fulva. Canal Winchester, W. C. Werner, Warren Co., W. A. Keller- 

 man, Columbus, C. M. Weed. 



Otherwise reported in Ohio: Ulmus americana, Fairfield Co., A. D. 

 Selby, F. Detmers, Columbus, A. D. Selby; Ulmus fulva, Columbus, W. C. 

 Werner. 



Uncinula flexuosa Peck. Mycelium persistent on upper 

 side of leaf; perithecia scattered, 85-156 ij. in diameter; cells dis- 

 tinct, 17 /'. : appendages 14—60, length equaling diameter of peri- 

 thecium, colorless, nonseptate, becoming enlarged, flexuose and 

 thickwalled at apex; asci 4-11, short-stalked, 50 x 30-58 x 38 /i; 

 spores 8, 18-22 x 10 /«. 



Host plants in Ohio Herbarium: Aesculus glabra, Cokimbus, C. M. 

 Weed; Aesculus sp., Oberlin, F. D. Kelsey. 



Otherwise reported in Ohio: Aesculus glabra, Columbus, F. M. 

 Webster. 



Uncinula clintoni Peck. Perithecia 80-130 ft in diameter; 

 cells 10-20 ft; appendages 10-35, 1-2 times diameter of perithe- 

 cium, colorless or light brown at base, thick-walled, swollen at 

 apex; asci 3-10, short-stalked, 40 x 34-62 x 40 //; spores 3-7, 

 20 X 10-25 X 13,«. 



Host-plants in Ohio Herbarium: Tilia americana, Cuyahoga Co., E. 

 Claassen. 



Otherwi.se reported in Ohio: Tilia americana, Oberlin, F. D. Kelsey. 



Uncinula salicis (DC) Winter. Perithecia globose-depressed, 

 90-175 /« in diameter; cells 10-15 /t; appendages numerous, 100- 

 150, crowded, %,-l}/2 times diameter of perithecium, nonseptate 

 or 1-septate at base, colorless, gradually enlarging toward apex; 

 asci 8-14, stalked, 55 x 30-80 x 40 // ; spores 4-6, 20 x 10-26 x 15 ,«. 



Host plants in Ohio Herbarium: Salix sp.. Bowling Green, Columbus, 

 Fairfield Co., W. A. Kellerman, Toledo, F. D. Kelsey; Salix glaucophylla. 

 Cedar Point, E. Claassen; Salix cordata, Cuyahoga Co., E. Claassen, 

 Columbus, W. A. Kellerman; Salix humulis, Amanda, W. A. Kellemian ; 

 Salix nigra, Columbus, C. M. Weed; Salix petiolaris, Columbus, C. M. 

 Weed; vScutellaria latirifolia, Williams Co., W. A. Kellerman; Populus 

 monilifera. Cedar Point, E. Claassen; Populus tremuloides. Cedar Point, 

 E. Claassen. 



Otherwise reported in Ohio: Scutellaria laterifolia, Columbus, A. D. 

 Sclbv. 



