82 



Mycologia 



A few of the new genera proposed are: Gloeocybe, based on 

 Lactarius insulsus; Lactarelis, on Russula nigricans; Dixophyl- 

 *lum, on Russula furcata; Scorteus, on Marasmius oreades; 

 Omphalopsis, on Omphalia Cawipanella; Basidopus, on Mycena 

 epipterygia; Collybidium, on Collybia velutipes; Monodelphus, on 

 Clitocybe illudens; Amanitella, on Amanita farinosa; and 

 Venenarius, on Amanita muscaria. 



A disease of New Hampshire apples, which has been studied 

 by Professor Charles Brooks, of New Hampshire College, is 

 fully described and illustrated in a recent number of the Bulletin 

 of the Torrey Botanical Club (35: 423-456. pi. 29-35. 1908). 

 This disease, known as " Fruit Spot of Apples," is caused by a 

 fungus described by Professor Brooks as Cylindrosporium Pomi. 

 The fungus gains entrance to the intercellular spaces of the 

 tissue of the apple through the stomata and causes reddish spots, 

 which later become brown or blackish and slightly depressed. 

 Chlamydospores and sclerotial masses of the fungus are the. 

 probable agencies for carrying the disease through the winter. 

 Spraying with Bordeaux mixture is a preventative, the applica- 

 tion to be made as late as June or July. 



