PEAR SCAB 



305 



PREVENTIVE MEANS. Similar to those recommended 

 under ' Apple Scab.' 



Goethe, Gartenfiora, 15 Mai 1887. 



Fig. 81. Fusicladium pirinum. i, fungus on the 

 upper side of a pear leaf; 2, fungus on a pear; 3, 

 conidia, a, borne on the tips of conidiophores, b, x 300. 



SWEET-CHESTNUT DISEASE 

 {Acrospeira mirabilis, Berk.) 



The ripe fruit of the sweet-chestnut (Castanea vesca, 



Gaertn.) is sometimes filled with a dense blackish-olive 



felt belonging to the fungus named above. Nothing as to 



the life-history of the parasite is known. The disease 



U 



