| 
                                    Leucoagaricus naucinus (Fr.) Singer
                                 | 
                                G. H. Sumstine s.n. | 
                                08 Oct 1940 | 
                                United States of America | 
                                Pennsylvania | 
                                Lancaster Co. "Landisdale" [Possibly Landisville] | 
                                — | 
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                                    Leucoagaricus naucinus (Fr.) Singer
                                 | 
                                G. E. Howard 2174 | 
                                20 Aug 1933 | 
                                United States of America | 
                                Massachusetts | 
                                Norfolk Co. Wellesley College Campus,… | 
                                — | 
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                                    Leucoagaricus naucinus (Fr.) Singer
                                 | 
                                L. K. Henry 982 | 
                                17 Oct 1936 | 
                                United States of America | 
                                Pennsylvania | 
                                Butler Co. east of Yellow… | 
                                — | 
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                                | 
                                    Leucoagaricus naucinus (Fr.) Singer
                                 | 
                                G. H. Sumstine s.n. | 
                                08 Oct 1940 | 
                                United States of America | 
                                Pennsylvania | 
                                Lancaster Co. Landisville | 
                                — | 
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                                    Leucoagaricus naucinus (Fr.) Singer
                                 | 
                                D. R. Sumstine s.n. | 
                                28 Sep 1938 | 
                                United States of America | 
                                Pennsylvania | 
                                Allegheny Co. Schenley Park | 
                                — | 
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                                    Leucoagaricus naucinus (Fr.) Singer
                                 | 
                                C. M. Hepner s.n. | 
                                16 Oct 1932 | 
                                United States of America | 
                                Pennsylvania | 
                                Allegheny Co. 4 miles east… | 
                                — | 
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                                    Leucoagaricus naucinus (Fr.) Singer
                                 | 
                                D. R. Sumstine s.n. | 
                                30 May 1952 | 
                                United States of America | 
                                Pennsylvania | 
                                Allegheny Co. Parking lot near… | 
                                — | 
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                                    Leucoagaricus naucinus (Fr.) Singer
                                 | 
                                H. S. Wieand s.n. | 
                                09 Oct 1936 | 
                                United States of America | 
                                Pennsylvania | 
                                Allegheny Co. Schenley Park | 
                                — | 
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                                    Leucoagaricus naucinus (Fr.) Singer
                                 | 
                                D. R. Sumstine s.n. | 
                                01 Aug 1906 | 
                                United States of America | 
                                Pennsylvania | 
                                Allegheny Co. Fern Hollow. | 
                                — | 
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                                | 
                                    Leucoagaricus naucinus (Fr.) Singer
                                 | 
                                H. E. Ahles 17285 | 
                                26 Sep 1973 | 
                                United States of America | 
                                Massachusetts | 
                                Hampshire Co. U. Mass. campus,… | 
                                — | 
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                                | 
                                    Leucoagaricus naucinus (Fr.) Singer
                                 | 
                                H. E. Bigelow 19263 | 
                                01 Oct 1986 | 
                                United States of America | 
                                Massachusetts | 
                                Hampshire Co. Near Clark Hall,… | 
                                — | 
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                                    Leucoagaricus naucinus (Fr.) Singer
                                 | 
                                D. R. Sumstine s.n. | 
                                Sep 1903 | 
                                United States of America | 
                                Pennsylvania | 
                                Armstrong Co. Washington [Township] | 
                                — | 
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                                    Leucoagaricus naucinus (Fr.) Singer
                                 | 
                                 s.n. | 
                                Sep 1962 | 
                                United States of America | 
                                Massachusetts | 
                                Essex Co. Colby St., Haverhill | 
                                — | 
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                                | 
                                    Leucoagaricus naucinus (Fr.) Singer
                                 | 
                                 s.n. | 
                                30 Aug 1974 | 
                                United States of America | 
                                Massachusetts | 
                                Hampshire Co. North Hadley | 
                                — | 
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                                | 
                                    Leucoagaricus naucinus (Fr.) Singer
                                 | 
                                D. R. Sumstine s.n. | 
                                05 Jul 1940 | 
                                United States of America | 
                                Pennsylvania | 
                                Allegheny Co. Pittsburgh | 
                                — | 
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                                | 
                                    Leucoagaricus naucinus (Fr.) Singer
                                 | 
                                D. R. Sumstine s.n. | 
                                07 Oct 1906 | 
                                United States of America | 
                                Pennsylvania | 
                                Allegheny Co. Schenley Park | 
                                — | 
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                                | 
                                    Leucoagaricus naucinus (Fr.) Singer
                                 | 
                                E. Greer 5 | 
                                1979 | 
                                United States of America | 
                                Massachusetts | 
                                Hampden Co. 103 Spring St.,… | 
                                — | 
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                                    Leucoagaricus naucinus (Fr.) Singer
                                 | 
                                H. E. Bigelow 2788 | 
                                13 Oct 1955 | 
                                United States of America | 
                                Michigan | 
                                Oakland Co. Proud Lake | 
                                — | 
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                                    Leucoagaricus naucinus (Fr.) Singer
                                 | 
                                 R-1 | 
                                16 Sep 1958 | 
                                Canada | 
                                Quebec | 
                                Jardin Botanique, Montreal | 
                                — | 
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                                | 
                                    Leucoagaricus naucinus (Fr.) Singer
                                 | 
                                H. Peters 181 | 
                                27 Nov 1960 | 
                                United States of America | 
                                California | 
                                San Mateo Co. Junipero Serra… | 
                                — | 
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                                | 
                                    Leucoagaricus naucinus (Fr.) Singer
                                 | 
                                 s.n. | 
                                1966-09-00 | 
                                United States of America | 
                                Massachusetts | 
                                Bristol Co. Thomas St., Fall… | 
                                — | 
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                                | 
                                    Leucoagaricus naucinus (Fr.) Singer
                                 | 
                                H. Donais 11559 | 
                                08 Oct 1962 | 
                                United States of America | 
                                Massachusetts | 
                                Hampshire Co. Main St., Easthampton | 
                                — | 
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                                | 
                                    Leucoagaricus naucinus (Fr.) Singer
                                 | 
                                H. E. Bigelow 2770 | 
                                09 Oct 1955 | 
                                United States of America | 
                                Michigan | 
                                Washtenaw Co. Silver Lake | 
                                — | 
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                                | 
                                    Leucoagaricus naucinus (Fr.) Singer
                                 | 
                                E. Rumrill s.n. | 
                                13 Oct 1900 | 
                                United States of America | 
                                Massachusetts | 
                                Suffolk Co. Roxbury | 
                                — | 
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                                | 
                                    Leucoagaricus naucinus (Fr.) Singer
                                 | 
                                 s.n. | 
                                28 Oct 1898 | 
                                United States of America | 
                                Massachusetts | 
                                Essex Co. Lynn | 
                                — | 
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