Rhytisma acerinum (Pers.) Fr., (sycamore tar-spot, tar-spot fungus)


30 Aug 2007 at OSGR: SK15 in Derby, England

Record SummaryMelasmia coelomycetous anamorph on black leaf-spots on Sycamore leaf
Found asAnamorph
Date30 August 2007
Associated organismAcer pseudoplatanus
OS grid refOSGR: SK15
Lat/Lon53° 10’ N, 1° 50’ W
Vice CountyDerby, VC no: 57
CountryEngland
Voucher30 Aug 2007[E]
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Notes:

Stromata: 3-7mm diam., black, with yellow halo. Centre with round black pimples.

Underside: slightly yellowish buffy-green, pale, sometimes dropping out to leave a shot-hole. Upper surface softly gelatinous, black clypeus scrapes away to reveal yellowish fungal tissue with black dot or dots of ostioles.

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