81 Nomenclatural notes on some cercosporoid hyphomycetes Uwe Braun, David F . Farr & Andrew M. Minnis Abstract: Braun, U., Farr, D.F. & Minnis, A.M. 2009: Nomenclatural notes on some cercosporoid hyphomycetes. Schlechtendalia 19: 81– 84. Cercospora haleniae is validated, Cercospora tragiicola sp. nov. and Passalora halesiicola sp. nov. (≡ Cercospora halesiae nom. inval., Passalora halesiae comb. inval.) are described and the combination Pseudocercospora nepheloides is introduced. Zusammenfassung: Braun, U., Farr, D.F. & Minnis, A.M. 2009: Nomenklatorische Anmerkungen zu einigen cercosporoiden Hyphomyzeten. Schlechtendalia 19: 81– 84. Cercospora haleniae wird validiert, Cercospora tragiicola sp. nov. und Passalora halesiicola sp. nov. (≡ Cercospora halesiae nom. inval., Passalora halesiae comb. inval.) werden beschrieben und die Kombination Pseudocercospora nepheloides wird eingeführt. Key words: Cercospora, combinations, nomenclature, Passalora, validations. Crous & Braun (2003) published an annotated list of names published in Cercospora Fresen. and Passalora Fr. (Mycosphaerella Johanson anamorphs). The nomenclature of several names has recently been checked. The following names and combinations proved to be invalid or otherwise in need of correction. 1. Cercospora haleniae Chupp & Bisby ex U. Braun, D.F. Farr & Minnis, sp. nov. MycoBank, MB 513134 ≡ Cercospora haleniae Chupp & Bisby, Fungi of Manitoba and Saskatchewan: 114, 1938, nom. inval. (ICBN, Art. 36.1; McNeill et al. 2006). Differt a C. apii s. lat. conidiophoris brevioribus, 5 –30 × 3 – 6 µm, cicatricibus conidi- alibus 1–1.5 µm diam. et conidiis obclavatis-subcylindraceis. Holotype: On Halenia deflexa (Gentianaceae), Canada, Manitoba, Berens River, 1 Aug. 1935, G.R. Bisby 4921 (CUP 39964). Leaf spots amphigenous, subcircular, brown, margin indefinite. Caespituli amphigenous, punctiform, dark brown to blackish. Mycelium internal. Stromata intraepidermal, 10 –25 µm diam., yellowish brown to brown. Conidiophores in small to moderately large fascicles, arising from stromata, erumpent, subcylindrical-conical to geniculate- sinuous, unbranched, 5 –30 × 3 – 6 µm, 0 –1-septate, pale to medium olivaceous-brown, thin-walled, smooth. Conidiophores reduced to conidiogenous cells or conidiogenous cells integrated, terminal, 5 –20 µm long. Conidiogenous loci conspicuous, thickened and darkened, 1–1.5 µm diam. Conidia solitary, obclavate-cylindrical, 20 –70(– 80) × 3 – 6 µm, 1– 6-septate, hyaline or subhyline, thin-walled, smooth, apex obtuse to sub-