Notes on some cercosporoid hyphomycetes from Argentina

Cercospora verbesinicola sp. nov., C. wedeliae-glaucae sp. nov., Pseudocerc ospora gomphrenae-pulchellae sp. nov. and P. grindeliae sp. nov, are descri bed and illustrated. The new combinations Passalora aratai (Speg.) comb, no v., P. hydrocotyles (Ellis and Everh.) comb. nov. and Pseudocercospora phae ochlora (Speg.) comb. nov. are introduced. Furthermore, new collections of various other cercosporoid hyphomycetes are recorded from the Province of B uenos Aires, Argentina.