Jan. i8g6. Flora of W. Virginia — Millspaugh & Nuttall. 123 



G. Alni E. & E., sp. nov. 



Type habitat: On living leaves Alniis ritgosa, Nov. 24, 1894 

 {^Nuttall, discov. 1737, 624). 



Spots dirty drown, suborbicular, indistinctly zonate, .5 to i 

 cm. diameter, paler in the center, border concolorous, rather in- 

 definite; acervuli epiphyllous, numerous, small, 100 to 120 ij. 

 diameter, chestnut color, becoming darker; conidia oblong- 

 elliptical, 12 to 16 X 6 to 8 p.. 



Differs from G. cylifidrospermum Bon., on the same host, in its 

 much broader conidia, and from G. nihicoliim E. & E. in the dif- 

 ferent character of the spots and rather broader conidia. 



G. nervisequum (Fckl.) Sacc. 



On \eQ.ves Flaiani/s occidenta/is, June 10, 1894. Sporules 12.5 

 to 18 X 4 to 6 I). [Nuttall, 1555,526). 



G. Roberg-ei Desm. 



On Carpitius Caroliniana, July 16, 1894 [Nuttall, 1608). 



G. betularum Ell & Mart. 



On Betula nigra, sporules 10 x 7 //., July 16, 1894 {Nuttall, 

 1607). 



G. cylindrospermum Bon. 



On leaves of Aluus rugosa. Spores 8 to 10 x 2 to 2.5 11 {Nutt- 

 all, 1875). 



G. venetum Speg. 



On living leaves of Rubus strls;osus, Sept. ig, 1895 {^Nuttall, 

 1859)- 



G, rubicolum E. E., sp. nov. 



Type habitat: On leaves of Rubus strigosus {^Nuttall, discov. 



747)- 



Spots at first numerous, angular, small and yellowish or red- 

 dish-yellow, soon confluent forming large brown, dry, dead spots 

 of irregular shape and indefinite outline, occupying a large part 

 of the leaf. Acervuli not numerous, scattered, epiphyllous, 

 prominent, resembling perithecia; conidia oblong-elliptical, 12 

 to 16 X 6 to 7 ,«. 



Differs from G. Rubi E. & E. in its larger, fewer black acervuli 

 and broader conidia, which also are about twice as large as in 

 G. Venetum Speg. 



MYXOSPORIUM Link. 



M. luteum E. & E., Proc. Phila. Acad., 1893, 458. 



Type habitat: On ba.r'k Hicor la ovata, April to July, 1893 (A'^c//- 

 all, discov. 1015, 79). E. & E. N. A. F. 2953. Fungi Colum- 

 biani 150. 



Stroma globose-conical, light yellow, .75 to i mm. diameter, 

 slightly sunk in the inner bark, unilocular and opening by a single 

 pore. The surface of the inner bark around this pore is of a pale 

 slate color, the colored portion definitely limited by a black line 



