40 NEW YOKK STATE MUSEUM 



Saccardinula alni Dearness & House, sp. nov. 



Perithecia scattered, superficial, membranaceous, black, shining, 

 iiiicrothyreaceous, smoothish to salebrose, tiattened-conic, inconspicu- 

 ously perforate, 90 to 270 micr. in diameter. Asci mostly saccate 

 and wider below but various in size, shape and number of sporidia 

 contained, lacking paraphyses, walls 3-4 micr. thick, 30-90x12-30 

 inicr., mostly 50-60 x 20-25 micr. Sporidia hyaline, four to eight 

 in each ascus, wider above, sometimes one or two in the upper half 

 of the ascus and the others crowded in the lower half, muriform, 

 5-7-septate, 20-24 X 6-8 micr. 



On bark of Alnus. Stamford, N. Y. Collected several years 

 ago by Dr C. H. Peck. Type in the New York State Museum 

 herbaripm. 



The species is peculiar in belonging to a genus heretofore repre- 

 sented by a few tropical leaf-inhabiting species. 



Septoria acetosella Dearness & House, sp. nov. 



Maculae mostly along the edges of the affected leaves ; these as 

 well as the interior ones rather indefinite. In most cases the tissues 

 around the affected areas are distinctly greener than the rest of the 

 leaf. Pycnidia scattered, subinnate, epiphyllous, but owing to the 

 thinness of the leaf-blades they are in most of the spots nearly 

 equally visible beneath, 90-100 micr. in diameter. Sporules straight, 

 continuous, 15-30x^-1 /x chiefly 18-20 fi long. 



On leaves of the wood sorrel, Oxalis acetosella L., Fourth 

 Lake, Herkimer county, August 8, 191 9. H. D. House. Type in 

 the New York State Museum herbarium. Also collected at the 

 same place August 8, 1917. 



Septoria flagellaris E. & E. 

 On living leaves of Convolvulus spithama'eus L., sandy 

 fields north of New London, Oneida county, July 20, 191 8. H. D. 

 House. 



Septoria hieracicola Dearness & House, sp. nov. 

 Spots red-brown on both sides of the leaf, circular or irregular, 

 having a narrow, raised, concolorous boundary, 2 to 8 mm broad. 

 Pycnidia gregarious near the center of the spots, somewhat darker 

 than the context, mostly epiphyllous. some of the spots ha-ving no 

 pycnidia on the lower surface, pustulate, minute, 35 to 60 micr. 



