The pairing tables for five species of secondarily homothallic Hymenomycetes, Agaricus bisporus (Lange) Imbach, Aleurodiscus canadensis Skolko, Conocybe pubescens (Gill.) Kühner, Coprinus sassii M. Lange & Smith, and Poria vincta var. cinerea (Bres.) Setliff were reorganized and reinterpreted. The fungi are apparently secondarily homothallic tetrapolar, not bipolar or secondarily homothallic bipolar as originally reported.
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J. Ginns (1974) studied this question.
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