126 Field Columbian Museum — Botany, Vol. i. 



P. funerea Desm. 



On Ipomaa pandurata, Sept. ig, 1895. Spores 23 to 25 x 6 to 

 7.5 //. {Nuttall, 1862, 750). 



P. Guepini Desm. 



On leaves Rhododeiidron maximian, R. Catawbiense and Azalia 

 viscosa. Spores 18 to 20 x 8 p., Aug. 2, 1894 {Nuttall, 1149 



P. Jefferisii Ell? 



On Op///as/er opu/Zfo/if/s, sporules 10 to 15 x 4 to 5 and 25 x 5 //. 

 May 7, 1894 {Niittall, 1509). 



P. Toxica E. & E., Proc. Phila. Acad., 1894, 374. 



Type habitat: On leaves Rhus radicans, Aug. 18, 1894 {Nitt/all, 

 1670, 567). 



Spots and perithecia as in PJiyllosticta 7-hoicola E. & E. Spor- 

 ules clavate-oblong, 4-septate, 12 to 15 x 4 to 5 /./., 3 intermedi- 

 ate cells pale brown, end cells short, conical, hyaline, the upper 

 cell with a crest of 3 short, spreading hyaline bristles 6 to 7 />. 

 long. Distance between the two extreme cells 12 //, pedicels 

 shorter than the spores. 



STEGANOSPORIUM Corda. 

 S Castanese Lib? 



On Castanea deniata, Nov. 14, 1893 {^Niitiall, 1275, 221). 



S. piriforme (Hoffm.) Corda. 



On dying Acer riibrton, June 12, 1894 (A^///^?//, 1553). 



S. muricatum Bon. 



On dead limbs Bctitia nigra in drift-wood along river, Oct. 21, 

 1895. Spores 35 to 50 x 15 to 18 // {Ni/fia/I, 1878). 



USTILAGINACE^. 



USTILAGO Pers. 

 U. SEGETUM (Bull.) Dittm. 



On living heads of wheat and oats, Monongalia Co., near 

 Morgantown; Lewis Co., near Alum Bridge; Taylor Co., near 

 Thornton {^Millspaiigh). 



U? sp. 



On under surface of newly fallen leaves Asimina triloba, Nov. 

 20, 1893 (iV/z/Zd!// discov. 1288, 233). 



U. MAYDis (DC.) Corda. 



On living ears and tassels of sweet corn, prevalent in Monon- 

 galia Co., 1891; near Morgantown (J/z7/.c/rt//^//). On garden corn, 

 July 31, 1894 {Nut tail, 1636). 



U. Avenae leevis, K. & S. 



On oats, Sewell Mountain, alt. 2,600 ft., Aug. 23, 1894 (A"////- 

 all, 1678). 



