

DISEASES OF 



CULTIVATED PLANTS 

 AND TREES 



BY 



GEORGE MASSEE 



ASSISTANT KEEPER, HERBARIUM, FOYAL BOTANIC GARDENS, KEW 



AUTHOR OF 'A TEXT-BOOK OF PLANT DISEASES,' 'EUROPEAN 



FUNGUS FLORA,' ' BRITISH FUNGUS FLORA,' ' A MONOGRAPH 



OF THE MYXOGASTRES,' ETC. ETC. 



S^ 



NEW YORK 

 THE MACMILLAN COMPANY 



