A description is given of the morphological characters of Phoma section Phyllostictoides and its taxonomical position is discussed. A key is provided for the varieties of the type species Phoma exigua Desm., followed by a host-fungus and a fungus-host index. Two new varieties are proposed: Phoma exigua var. forsythiae (Sacc.) comb. nov. and Phoma exigua var. noackiana (Allesch.) comb. nov. The synonymy, selected literature, a representative culture and data on ecology and distribution are given for all varieties.

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Journal Persoonia - Molecular Phylogeny and Evolution of Fungi
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Released under the CC-BY 4.0 ("Attribution") License

Citation
van der Aa, H.A, Boerema, G.H, & de Gruyter, J. (2001). Contributions towards a monograph of Phoma (Coelomycetes) VI — 1. Section Phyllostictoides: Characteristics and nomenclature of its type species Phoma exigua. Persoonia - Molecular Phylogeny and Evolution of Fungi, 17(3), 435–456.