62 



THE BOTANICAL MAGAZINE. [v„i. xxvi. No. so::. 



Spores, hyaline, 2-3 septate, thicker, at one end, guttulate, 

 curved, 40-70 // long, 4-5 n broad (Fig. 8). 



On Pints sinensis Lindl. (lichang, Hupei ; Sept. 25, 1908). 



The known fungi of the genus Septoria which are parasitic on 

 Pirus, are comparatively many according to Saccardo's Sylloge 

 Fungorum, but they are quite different from the present species 

 in many points, especially in the following important points :— 



5. Ralfsii B. et Br., with straight spores, the length of 

 which is only a half that of my species, a parasite on fruits 

 {Rhahdospora ? ) . 



S. nigerrima Fuck., with long black hair rings on pycnidia. 



S. piricola Desm., epiphyllous, greyish white spots with 

 narrow brown margin, and its pycnidia with white— olive- 

 coloured hairings. 



>S. perularum (Thum.) Sacc, spores, pointed at both ends, 

 and size of spores is one fourth of my species, a parasite on 

 branches {Rhahdospora ?). 



Septoria amphigena sp. nov. 



Spots, on leaves, roundish, darkbrown, having greyish 

 centre, 3-5 mm. in diameter ; pycnidia, amphlgenous, densely 

 gregarious, at first covered by the epidermis, then ruptured, 

 black deeper colour at the mouth part, spherical or ellipsoidal, 

 120-150 a in diameter ; conidia, greenish, long fusiform, 3- 

 septate, 18-22 // long, 1.5-2.0 n broad, straight or slightly 

 curved (Fig. 9). 



On Bnpleuram falcatum Linn. (Mentoukou near Peking ; 



Oct. 1910). 



Concerning the other species of Septoria which are parasitic 

 on leaves of Bnpleuram, according to Saccardo's Sylloge Fun- 

 '^orum I have found four that are different from the present 

 species in the following points. 



S. Bupleuricola Sacc, pycindia, epiphyllous and spores, 

 without septum. 



5. Bupleuri Desm., pycindia, hypophyllous, and the length 

 of spores is twice that of my fungus. 



S. diffusa F. Tassi., pycnidia epiphyllous and conldia are 

 one-celled. 



