6G THE BOTANICAL MAGAZINE. [vui. xxvi. No. -m. 



Cercospora Ipomese Wint. Sacc, Syll. X. p. 663. 



On Pharhitis hederacea L. (Mentoukou near Peking ; Oct. 

 1910). 



Cercospora canescens Ell. et Mart. Sacc, Syll. IV. p. 435. 



On Phaseolus Mungo h. var. radiatus Bak. (lichang, Hupei; 

 Sept. 24, 1908). 

 ' Cercospora Aleuritidis i^p. nov. 



Spots, on leaves, black on upper surface, darkbrown with 

 yellowish brown central part on underside, roundish, 6— 10 mm. 

 in diameter, conidiophores, amphigenous, pushing out from a 

 stomata 4-5 in bundleform, 2-3 septate, dark, but lighter to- 

 wards the tips, 20-40 [j. long, 4 /i broad (Fig. 15) ; conidia, 

 cj'lindrical with roundish both ends, frequently obclavate, 

 straight or curved, 4-8 septate, h\^aline, guttulate, 40-90 ft 

 long, 4-5 [JL broad (Fig. 16). 



On Aleurites cordata Arg. (Prov. Sangteh, Hunan; Oct. 12, 

 1908). 



Because I do not know a fungus of this genus to be para- 

 sitic on leaves of Aleurites cordata, which is one of the most 

 useful of the cultivated trees in South China, I have considered 

 this fungus to be a new .species. 



EXPLANATION OF PLATE L 



Fig. 1 and 2. Macrophoma Sohporee sp. nov. 



Fig. 3 and 4. Coniothyrium Kraunhias sp. nov. 



Fig. 5 and 6. Nathopathella sinensis sp. nov. 



Fig. 7 and 8. Septoria Peri sp. nov. 



Fig. 9. Septoria amphigena sp. nov. 



Fig. 10 and 11. Brachysporium Phragwitis sp. nov. 



Fig. 12 and 13. Hclminthosporium Sapii sp. nov. 



Fig. 14. Helminthosporium Sesami sp. nt.v. 



Fig. 15 and 16. Cercospora Aleuritidis sp. nov. 



