370 PLANT DISEASES 



papillate, about i mm. diam., smooth ; asci cylindrical or 

 subclavate, base narrowed, 160-170x8-10 /j., 8-spored; 

 spores obliquely i-seriate, fusoid, guttate, both ends acute, 

 brown, 28x6-7 p.. 



Eosellinia ligniaria, Nits., Fuckel's Symb. Myc., 150 (1869- 

 70). Perithecia gregarious, globoso-conic, superficial, black, 

 sparingly covered with minute hairs, mm. diam. ; asci 

 cylindrical, stipitate, 8-spored, 80-96x10-12 p>; spores 

 obliquely i-seriate, ends obtuse, blackish-brown, continuous, 

 16x8 fi. 



Rosellinia necatrix, Berl. = Dematophora necatrix, Hartig. 

 Perithecia densely gregarious, seated on a byssus or 

 subiculum, obovate, blackish, nearly 2mm. diam., surrounded 

 at the base by fascicles of conidiophores ; asci cylindrical, 

 8-spored ; spores fusiform, often inaequilateral, continuous, 

 brown, 40 X 7 p- ; paraphyses filiform ; conidiophores spring- 

 ing from small black sclerotia, fasciculate, branched; conidia 

 elliptical, hyaline, 2-3 p. long; pycnidia springing from 

 sclerotia, black, subglobose; stylospores hyaline, elliptical, 

 continuous, or 1-3 celled, averaging 25x8 p.. 



Eosellinia radiciperda, Massee, Kew Bull, 1896, p. i, 

 i pi. Ascophores densely gregarious, seated on a black, 

 velvety byssus, globoso-depressed,mamillate, black, glabrous, 

 large; asci cylindrical, apex truncate; spores 8, i-seriate, 

 elliptic-fusiform, slightly inaequilateral, continuous, brown, 

 40-45 X 1 2 p. ; paraphyses filiform ; pycnidia globoso- 

 depressed, sparingly pilose, black, stylospores elliptic-oblong, 

 continuous, hyaline, continuous, 7-8 X 4-5 /* ; conidiophores 

 springing in fascicles from small black sclerotia, much 

 branched at the apex; conidia terminal on the branchlets, 

 hyaline, continuous, elliptic-oblong, 7x4^. 



