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Conidiomata of Sphaceloma murrayae , formed intra‐and subepidermally in willow ( Salix spp.) leaves, were acervular. Conidium ontogeny was phialidic i.e., the primary conidium initial developed enteroblastically and with the release of successive conidia, sets of scars formed at a similar level around the phialidic apex. Occasionally successive conidia formed through new loci in existing conidiophores.
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Spiers et al. (1992) studied this question.
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