660 MINNESOTA BOTANICAL STUDIES. 



39. CONIOSPORIUM Lk. Obs. Myc. 1:8. 1809. 



Chromosporium Cord A, Sturm. Deutschl. Crypt. FJ. in. 9:119. 



1829. 

 Gymnosporium Cord A, Sturm. Deutschl. Crypt. Fl. in. 13:69. 



1833. 

 Papulina Fr. Summ. Veg. Scand. 2: 509. 1849. 



Sporophore obsolescent or altogether wanting; conidia sim- 

 ple, hyaline or fuscous, inappendiculate, globose to oblong. 



Chromosporiy,m, differing only in color, has been included. 21 

 species contained in the genus thus limited are reported from 

 the United States. The following are transferred from Ghro- 

 mosjiorium : 



CONIOSPORIUM FUI.VUM (B. & C.) 



Gymnosporium fulvum B. & C. Journ. Linn. Soc. 10: 355. 1869. 

 Chromospoi-ium fulvum Sacc. Syl. Fung. 4: 6. 18*6. 



CONIOSPORIUM LATERITIDM (CKE. & HARKN.) 



Chromospm ium lateritium Cke. & Harkn. Grev. 13:94. 1884. 

 Chromosporium cookei Sacc. Syl. Fung. 4: 7. 1886. 



CONIOSPORIUM PACTOLISUM (CKE. & HARKN.) 



Corticium pactolinum Cke. & Harkn. Grev. 9: 81. 1881. 

 ChromosporiumpactolinumCK.il. Grev. 16: 72. 18S8. 



CONIOSPORIUM VITELLINUM (SACC. & El,l>. I 



Chromosporium vitellinum Sacc. & Em.. Misc. Myc. 2:18. 1884. 



40. D1C0CCUM Corda. Sturm. Deutschl. Crypt. Fl. in. 9: 



117. 1829. 



Vegetative hyphae obsolete; sporophores short, obsolescent; 

 conidia one septate, hyaline or fuscous, inappendiculate, ob- 

 long to clavate. 



3 species are described from the United States. 



41. CERAT0PH0ROI Sacc. Mich. 2:22. 1880. 

 Vegetative hyphae creeping, obsolescent; sporophores short, 



erect; conidia 2— several-septate, fuscous, appendiculate, fus- 

 oid to cylindrical. 



42. TETRAPLOA B. & Br. Ann. Mag. N. H. No. 547. 

 Sporophores obsolete; conidia muriform-septate, fuliginous, 



pluri-corniculate at the apex, ovate- oblong. 

 2 species are reported from this country. 



43. CLASTEROSPORIUM Schw. Syn. Fung. Am. Bor. 300. 



1834. 

 Vegetative hyphae creeping, ramose, fuscous; sporophore 

 obsolete; conidia erect or ascending, solitary, short pedicelled, 

 many-septate, inappendiculate, fusc6us, fusoid to cylindrical- 

 saprogenous. 



