A new genus, Thysanophora, based on Haplographium penicillioides Roum., is proposed. Two species are placed within the genus: Thysanophora penicillioides (Roum.) Kendrick comb. nov. is redescribed from 32 collections and isolations, and Thysanophora longispora Kendrick sp. nov. is described from four collections on decaying needles of Tsuga canadensis and an isolation derived from one of these collections.
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W. B. Kendrick (1961) studied this question.
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