170 
The Ohio Naturalist. 
[Vol. X, No. 7, 
Host plants in Ohio Herbarium: Vitis quinquefolia, Cuyahoga Co., 
E. Claassen; Parthen’ocissus quinquefolia, Columbus, W. A. Kellerman; 
Vitis (cult), Columbus, W. A. Kellerman; Ampelopsis quinquefolia, 
Columbus, H. If. Richardson, C. M. Weed, W. A. Kellerman, Oberlin, 
Toledo, F. D. Kelsey. 
Uncinula macrospora Peck. Mycelium thin; perithecia 
95—165 /x ; cells 10 jx\ 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 /*; spores 
2, 30 x 16 / 1 . 
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 / x in diameter; cells dis- 
tinct, 17 jx\ 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 ;x\ 
spores 8, 18-22 x 10 jx. 
Host plants in Ohio Herbarium: Aesculus glabra, Columbus, 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 / 1 in diameter; 
cells 10-20 jx ; 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 fx\ spores 3-7, 
20 x 10-25 x 13 ix. 
Host-plants in Ohio Herbarium: Tilia americana, Cuyahoga Co., E. 
Claassen. 
Otherwise reported in Ohio: Tilia americana, Oberlin, F. D. Kelsey. 
Uncinula salicis (DC) Winter. Perithecia globose-depressed, 
90-175 ;x in diameter; cells 10-15 /x\ appendages numerous, 100- 
150, crowded, M-ljdj 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 [x ; spores 4—6, 20 x 10-26 x 15 ;x. 
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. Kellerman; 
Salix nigra, Columbus, C. M. Weed; Salix petiolaris, Columbus, C. M. 
Weed; Scutellaria 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. 
Selby. 
