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 Life habit: parasitic or saprophytic on phanerogams, or lichenicolous, non-lichenized; Ascomata: unknown in lichenicolous species; some non-lichenicolous species are anamorphs of Leptosphaeria or Pleospora; Conidiomata: pycnidial, unilocular, brown to black, subspherical, ostiolate, immersed or partly erumpent; wall: thin, composed of a few cell layers, often thicker near the ostiole, brown, sometimes with a golden-brown or olivaceous tinge, paraplectenchymatous; conidiophores: usually absent; conidiogenous cells: enteroblastic, phialidic, not proliferating, hyaline, short-cylindrical to broadly ampulliform; conidia: arising singly, narrowly to broadly ellipsoid to subspherical, apically rounded, basally rounded or indistinctly truncate, hyaline, simple, thin- and smooth-walled; Geography: cosmopolitan; Substrate: phanerogams and lichens.; Notes: More than 2000 Phoma species have been dePHOMA 

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© Lichen Unlimited: Arizona State University, Tempe.

Source: Lichen Flora of the Greater Sonoran Desert Region

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