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LEAF SPOTS amphigenous, subcircular to irregular, at first yellowish-ochraceous, later brown to greyish brown, finally greyish white to dark brown to almost black, 1-10 mm diam, with an indefinite margin or a narrow moderately wide dark border.
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CAESPITULI hypophyllous, punctiform, subeffuse, greyish white.
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CONIDIOPHORES (cp) in small to moderately large fascicles, originating from internal hyphae or stromata, emerging through stomata or erumpent through the cuticule, erect, subcylindric, filiform to moderately geniculate-sinuous, simple, sometimes branched, aseptate or septate, hyaline, smooth, 10-70 x 2.5-5 µm.
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CONIDIA (c) catenate, frequently in branched chains, ellipsoid-ovoid, subcylindric, hyaline, almost smooth to verruculose, aseptate, 8-18 x 2-7 µm; ends rounded to subacute; hila small, slightly thickened and darkened.
PLANT HOST AND DISTRIBUTION. Ramularia chamaedyros affects Veronica chamaedrys L. (Scrophulariaceae) growing in Europe (Braun 1998).
REFERENCE
Braun U. 1998. A monograph of Cercosporella, Ramularia and allied genera. Vol. 2. IHW-Verlag.