82 Journal of the ]\Iitchell Society [Scpfriiilxr 



does the vetch fungus. Mala and Paeottet' claim to have observed 

 budding in Gloeosporium nervisequu»i on sycamore but an examina- 

 tion of their figures indicates that they must have been working with 

 contaminated cultures. Such a criticism has, in fact, been offered ])y 

 several investigators, including Shear." These last two characters are 

 sufficiently distinctive to leave no reason for regarding the vetch 

 fungus as an anthracuose. 



In the writer's opinion the genus, Protocoronospora, with its 

 single species, nigricans, should properly be transferred to the Melan- 

 coniales. It is realized that the various genera in the Fungi Imperfecti 

 are arranged artificially and not phyllogenetically and that it is, there- 

 fore, difficult to properly relate the vetch organism. Under this arti- 

 ficial scheme, Protocoronospora should probably be placed near Colle- 

 totrichum. Perhaps some other student of this interesting organism 

 will be able to find an ascigerous stage and thus to know its true 

 relationship. 



The following brief Latin description is given and involves the 

 changes necessary in the transfer from the Thelephoraeeae to the 

 Melanconiaceae. 



Protocoronospora Emend. 



Acervulis innato-erumpentibus, in stromate pseudoparenchymatico, 

 ex 2-5 stratis cellularum constituto insidientibus, ramuli mycelici ul- 

 timi conidiphora efformatibus ; setulis atro brunneis ; conidia ses- 

 siles, hyalina incolora, continua, leves, plures (plurumque 4-8), ex 

 germinatione conidia conformia efformantes. 



Protocoronospora Nigricans Atk. et Edg. Emend. 



Plagulis angustis in legumibus foliis caulibusque, 2-5 mm. long., 

 1-2 mm. latis; primum irregulariter purpurascentibus, centro al])i- 

 cantibus v. purpureo cinctis, deinde nigricantibus; stromate sub- 

 epidermatico e cellularis 6-9/x diam. constituto ; setulis paucis v. numer- 

 osis, continuis v. uniseptatis atro-brunneis, 60-90 x 5-7/x ; eonidiophoris 

 ex clavato subc.ylindraceis, 20-30 x 5-6/x, plurisporis; conidiis sessil- 

 ibus ex eonidiophoris conidia nova continuo gignentibus ; conidiis 

 in massa roseolis, ex oblongo ellipsoideis, granulosis, rectis vel curv- 

 ulis, 12-20 X 3-5.5/^. 



* Viala, P. and Pafottet, P.. Levures et Kvstes lU's Gloeosporium. Ann. Inst. Nat. 

 Agron. V. 5: Fasc. 1, p. 31-73, Figs. 32, Paris. 1906. 



" Shear, C. L. and Wood, Anna K. Studies of fungous parasites belonging to the 

 genus Glomerella. U. S. D. A. Bur. Plant Ind. Bui. 252, pp. 11-110, Figs. 4, Pis. 1-18, 1913. 



