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Relationship between Merulius lacrymans and M. himantioides


THE relationship between the brown-spored species under Merulius is not certainly known. The two species, M. lacrymans (Wulf.) Fr. and M. himantioides Fr., are regarded by Cooke1 as morphologically alike but distinguishable on the basis of physiological activity and habitat. He therefore considers them as varieties under the same species. He has, however, stated that “more than one species may be indicated if unsuccessful monospore culture pairings are used as indicators of specific barriers”. This criterion is used for studying the relationship between M. lacrymans and M. himantioides.

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  1. 1

    Cooke, Wm. B., Mycologia, 49, 197 (1957).

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