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Ramularia leaf spot

Fungi: Ascomycota: Dothideomycetes: Capnodiales: Mycosphaerellaceae: Ramularia rubella (Bonord.) Nannf.

Ramularia rubella – Ramularia leaf spot

Synonyms: Crocisporium rubellum, Crocysporium rubellum, Oidium monosporium, Oidium rubellum, Ovularia canaegricola, Ovularia monosporia, Ovularia obliqua, Ovularia obovata, Ovularia rubella, Ramularia monosporia, Ramularia obovata.

Common names: Ramularia leaf spot, Red Dock Spot.

Extract from Wikipedia article: Ramularia rubella is a plant pathogen in Ascomycota that infects Rumex species. Infection produces reddish spots on leaves. The red color is caused by the production of rubellin, a photodynamic anthraquinone-derived phytotoxin. R. rubella was originally described from Rumex aquaticus in Germany; it has a wide geographic range on Rumex species. It is being investigated as a biological control agent of Rumex obtusifolius.

Photos of this mushroom from East and Central Texas

Ramularia leaf spot fungus (<B>Ramularia rubella</B>) on curly dock (Rumex crispus) in area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, <A HREF="../date-en/2021-03-14.htm">March 14, 2021</A>
LinkRamularia leaf spot fungus (Ramularia rubella) on curly dock (Rumex crispus) in area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 14, 2021
Location on maps23668 FM 1155, Washington, TX 77880, USA
Close-up of Ramularia leaf spot fungus (<B>Ramularia rubella</B>) on curly dock (Rumex crispus) in area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, <A HREF="../date-en/2021-03-14.htm">March 14, 2021</A>
LinkClose-up of Ramularia leaf spot fungus (Ramularia rubella) on curly dock (Rumex crispus) in area of a former pond in Washington-on-the-Brazos State Historic Site. Washington, Texas, March 14, 2021
Location on maps23668 FM 1155, Washington, TX 77880, USA

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