THE PARASITIC EXOASCEAE. 153 



M. alpiniis (.fohan.) on Betula nana (coating on under 



surface). 

 U. carpini (Rostr.) on Caiyinus Betulus (coating on under 



side, and crumpling of leaf). 

 E. cerasi (Fuck.) on Frunus Cerasus and F. arAuni (coating, 



chiefly on under side, and crumpling of leaf). 

 E. insititiae (Sad.) on Frunus Insititia, F. domestica, F. 



pennsylvanica, (F. spinosa ?) ; (coating on under side, 



and crumpling of leaf). 

 E. acerinus (Eliass.-^) on Acer platanoides ; (asci on both 



surfaces). 

 E. aesculi (Ell. et Ever.) on Aesculus califwnica; (coating on 



both sides). 

 E. Krucliii (Vuill.) on Quemis Ilex. 

 E. cornu cervi (Giesh.) on Aspidnmi aristatum. 

 E. Laurencia. (Giesh.) on Fteris quadriaurita (with deforma- 

 tion of leaves). 



(2) E. nanus (Johan.) oil Betula nana (white coating on 

 upper side). 



E. hacteriospernixis (Johan.) on Betula nana (coating on both 

 sides). 



E. deeipiens (Atk.) on Frunus americana (coating on both 

 sides). 



E. purpurascens (Ell. et Ever.) on Rhus copallina (crum- 

 pling and red-colouration). 



E. Tosquinetii (West.) on Alnus glutinosa and A. glut, x 

 incana (large blisters and elongation of shoots). 



E. pruni (Fuck.) on Frunus domestica (blistering and crum- 

 pling). 



E. minor (Sad.) on Frumis Cliamaecerasus. 



E. deformans Berk, on Fersica vulgaris and Amygdalus 

 eommtinis (blistering and crumpling). 



E. cratacgi (Fuck.) on Crataegus Oxyacantha (spots and 

 blisters on the leaves). 



E. mirabilis (Atk.) on Frunus angustifolia, F. horfulana, 

 F. americana (on twigs, leaves, and fruits). 



E. celtis (Sad.) on Oeltis australis (brown spots). 



E. githaginis (Eostr.) on Agrostemma Githago. 



^Svenslca Vet.-Akad. Handl. 20, 1895, 



