JAN. 1896. FLORA OF W. VIRGINIA MILLSPAUGH & NUTTALL. 93 



brown, not constricted at the septa, 30 to 40 x 12 to 14 /z, with 

 a short (8 to IO,M) obcoriical, hyaline or pale-brown, persistent 

 pedicel, which is sometimes prolonged into a hyaline thread 

 as long as the spore. This prolongation may be something of 

 the nature of a pith or medulla drawn out of the supporting 

 hypha and remaining attached to the pedicel. 



CERCOSPORA Fres. 

 C. Armoracise Sacc. 



On Roripa Armoracia. Conidia 175 x 5 //., Aug. 26, 1894 (Nutt- 

 all, 1687, 593). 



C. CAULOPHYLLI Peck. 



On living leaves Caulophyllum thalictroides, Grant Co., near 

 Bayard (Millspaug)i). 



C. Violee Sacc. 



On Viola obliqua, Aug. 10, 1895 (Nuttall, 1841, 731). 



C. granuliformis Ell. & Hoi. 



On living leaves Viola obliqua, June 28, 1894 (Nut tall, 1565). 



C. oculata E. & K. 



On leaves Vernonia Noveboracensis, Aug. 6, 1 894 ( Nuttall, 1682). 



C. Vernonise E. & K. 



On leaves Vernonia Noveboracensis, Oct. 10, 1894 (7VW/a//, 1698). 



C. omphacodes Ell. & Hoi. 



On Phlox amtxna, July 14, 1894 (Nuttall, 1605). 



C. Dirantherae E. & K. 



On leaves of Dianthera Americana. Oct. 23, 1895 (Ntittall, 

 1879). 



C. avicularis Wint. 



On living leaves Polygonum aviculare, July 5, 1895 (Nuttall, 

 1815). 



C. dubia (Riess) Wint. 



On Chenopodium album viride, July 4, 1894 (Nuttall, 1587). 



C. beticola Sacc. 



On leaves Beta vulgaris, Oct. 4, 1894 (Nuttall, 1692). 



C. Bcehmerise Peck. 



On leaves Bo:hmeria cylindrica, Oct. 5, 1894 (Nuttall, 1694). 



C. Acalyphae Peck. 



On leaves Acalypha Virginica, Oct. 3, 1894 (Nuttall, 1691). 



C. Ampelopsidis Peck. 



On Parthenocissus quinquefolia. Conidia -j- 40 x 3 \j., June 30, 

 1894 (Nuttall, 1578). 



