Gnomonĭa

Gnomonĭa

Gnomonĭa Ces. et de Not., Pilzgattung der Askomyzeten aus der Familie der Gnomoniazeen. Die Arten von G. erzeugen an lebenden oder abgefallenen Blättern gewisser Blütenpflanzen Blattflecke, aus denen die schnabelförmig verlängerten Hälse der gesellig stehenden Perithecien bei der Reife hervorprechen. Einige parasitische Arten treten als Schädlinge an Kulturpflanzen auf. G. erythrostoma Fuck. verursacht die bisweilen epidemisch werdende Blattflechte oder Blattseuche der Süßkirschen (s. Blattflecke). Am Haselstrauch tritt G. Coryli Awd. auf, an der Hainbuche G. fimbriata Awd., an Eichen G. suspecta Sacc. und G. lirelliformis Pass.


http://www.zeno.org/Meyers-1905. 1905–1909.

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