112 



Mycologia 



On living leaves of Nelumbo lutea (Willd.) Pers., Palestine, 

 Texas, Oct. 30, 1914, /. M. Lewis & B. C. Tharp. 



Corcospora nigri sp. nov. 



Spots amphigenous, indefinitely margined, 3-8 mm. in diameter 

 or by confluence covering leaf, dirty-brown above, water-soaked, 

 becoming - brown beneath ; hyphae amphigenous ; ephiphyllous 

 hyphae densely (30-100) fasciculate, fascicles comparatively 

 scattered, light-brown, septate, subgeniculate, 30-50 X 5 some- 

 what spreading; hypophyllous fascicles more densely clustered, 

 hyphae rarely less than 50 /x long, usually longer, geniculate, sep- 

 tate, almost hyaline above to brown at base, spreading; conidia 

 yellowish-gray to hyaline, cylindric or upward attenuate, 1-12- 

 septate, 35-95 X 3-4/^, profuse on both leaf surfaces. 



On living leaves of Solatium nigrum L., Palestine, Texas, Oct. 

 30, 1914, /. M. Lewis & B. C. Tharp. 



Cercospora nyssae sp. nov. 



Spots amphigenous, circular to subcircular, 3-8 mm. in diam- 

 eter, brown with a gray, punctiform center and darker brown 

 slightly raised margin ; hyphae amphigenous, short, dark-brown, 

 continuous to once or twice septate, nodulose, spreading, 40- 

 50 X 4-5/^; conidia obclavate, olivaceous, 3-12-septate, 35-100 X 

 5-6>. 



On living leaves of Nyssa sylvaitica Marsh., Palestine, Texas, 

 Oct. 30, 1914, /. M. Lewis & B. C. Tharp. 



Cercospora person ata (B. & C.) E. & E. 



The following quotation is taken from the Journal of Mycol- 

 ogy 1 : 63-64. 



a Cercospora personata (B. & C), (Cladosporium personatum 

 B. & C. Grev., Ill, p. 106). 



"Forming small brown, orbicular spots (2-4 mm.) on the 

 lower surface of the leaves. Hyphae densely tufted, short, 

 brown, continuous. Conidia mostly clavate, pale brown, about 

 3-septate, 30-50 X 5-6 microns. Originates beneath the epi- 

 dermis. 



" On leaves of Arachis hypogaea, Carolina and Alabama 

 (Ravenel). According to Berkeley (1. c), ( a variety occurs 



