22 



W. Phillips. A Manual of British Discomyceles. Im. 8vo. Plates. 

 London. 1887. 



P. A. Saccardo. " Sylloge Discomycetum,'" in Sylloge Fangorum. 

 Vol. viii. Padua, 1889. 



R. Hartig. 7'ext Book of Diseases of Trees. Roy. 8vo. London, 

 1894. 



Geo. Massee. The Evolution of Plant Life, Lower Forms. 12mo. 

 London, 1891. 



Marshall Ward. Diseases of Plants. 12mo. Cuts. London, 1884. 



A. De Bary. Recherches siir le iJeveloppement de quelques champig- 

 nons parasites. 8vo. Plates. Berlin, 1878-94. 



