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certified proof- BEP certification date
- 1890-12-22
- plate date
- 1891-02-14
- series date
- 1882
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certified proof
- BEP certification date
- 1908-12-05
- plate date
- 1891-08-27
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certified proof
- BEP certification date
- 1923-07-21
- plate date
- 1905-05-02
- series date
- 1902
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Helianthus subrhomboideus Rydb.
- Collection Date
- 29 Sep 1907
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Crataegus crus-galli L.
- Collection Date
- 8 May 1921
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Eragrostis trichodes (Nutt.) Alph. Wood
- Collection Date
- 19 Aug 1950
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Desmognathus fuscus
- Collection Date
- 28 Apr 1978
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Oscillatoria sancta Kütz.
- Collection Date
- 20 Jan 1941
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Caecidotea intermedia
- Collection Date
- 7 Jul 1974
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