78 NEW YORK STATE MUSEUM 



Septorias are traced to their ascigenous forms. Doubtless many 

 of them " carry on " without asci. The fruiting Septoria on the 

 old dead fallen leaves of the Newcomb collection made when 

 Septoria spots were just beginning to appear upon green leaves 

 suggests that Septoria canadensis may be capable of 

 infection through successive generations without asci. 



Septoria dentariae Peck 

 On living leaves of C a r d a m i n e b u 1 b o s a (Schreb.) 

 B.S.P. Near Rensselaer, H. D. House, May lo, 1921. 



Septoria pallidula Dearness & House, sp. nov. 



Spots pallid, bounded by the veinlets but not bordered, gradually 

 extending over the entire leaf ; pycnidia conic, pale brown, perforate, 

 amphiphyllous, but mostly epiphyllous, 60-65 /* '^^ diameter ; sporules 

 mostly straight, none to three-septate, not guttulate, 16-30 x 1-2 fx. 



On living and languishing leaves of Hydrocotyle 

 a m e r i c a n a L. Albany, H. D. House, August 27, 1919. 



Septoria hydrocotyles Desm. on Hydroco- 

 tyle repanda, has subregular spots, i mm in diameter, 

 pycnidia epiphyllous, dark ; sporules curved, eight to ten-guttu- 

 late and other minor differences as compared with the one 

 here described. It is also different in marked characters from 

 three other South American and African species of Septoria 

 which have been described on Hydrocotyle. 



Septoria lobeliae Peck 

 On living leaves of Lobelia syphilitica L. Oneida, 

 Madison county, H. D. House, August 27, 1918. On leaves of 

 Lobelia syphilitica L. and Lobelia cardinalis 

 L., Newcomb, Essex county, H. D. House, July 15-30. 



Spegazzinea rubra Dearness & House, sp. nov. 



Sporodochia scattered, pulvinate to hemisphaeric, .25 to 3 mm, 

 black to the naked eye when dry, dark red under the microscope ; 

 conidia dark brown, sessile, not very numerous, globose. 6-16 /x, 

 mostly 12-15 f^f when fully developed, with polygonal markings on 

 the walls, 3-4 /x in diameter. 



On dead stems of Polygonum scandens L., Sylvan 

 Beach, Oneida county, H. D. House, May 16, 1918. 



