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Peter M Greenwood: Cystopteris fragilis (L. ) Bernh. - Brittle Bladder Fern
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Peter M Greenwood: Cystopteris fragilis (L. ) Bernh. - Brittle Bladder Fern
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Peter M Greenwood: Cystopteris fragilis (L. ) Bernh.? - Brittle Bladder Fern
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Peter M Greenwood: Cystopteris fragilis subsp. diaphana (Bory) Litard. = Cystopteris diaphana (Bory) Blasdell = Cystopteris viridula (Desv.) Desv. - Diaphanous Bladder Fern
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Peter M Greenwood: Cystopteris fragilis subsp. diaphana (Bory) Litard. = Cystopteris diaphana (Bory) Blasdell = Cystopteris viridula (Desv.) Desv. - Diaphanous Bladder Fern
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Peter M Greenwood: Cystopteris fragilis subsp. diaphana (Bory) Litard.= Cystopteris diaphana (Bory) Blasdell = Cystopteris viridula (Desv.) Desv. - Diaphanous Bladder Fern
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Peter M Greenwood: Cystopteris fragilis subsp. diaphana (Bory) Litard.= Cystopteris diaphana (Bory) Blasdell = Cystopteris viridula (Desv.) Desv. - Diaphanous Bladder Fern
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Peter M Greenwood: Cystopteris montana (Lam.) Desv.
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Peter M Greenwood: Gymnocarpium dryopteris (L.) Newman - Oak Fern
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Peter M Greenwood: Gymnocarpium robertianum (Hoffm.) Newman - Thelypteris robertiana (Hoffm.) Slosso - Limestone Oak Fern
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Peter M Greenwood: Gymnocarpium robertianum (Hoffm.) Newman - Thelypteris robertiana (Hoffm.) Slosso - Limestone Fern, Limestone Oak Fern
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Peter M Greenwood: Gymnocarpium robertianum (Hoffm.) Newman - Thelypteris robertiana (Hoffm.) Slosso - Limestone Fern, Limestone Oak Fern
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Peter M Greenwood: Gymnocarpium robertianum (Hoffm.) Newman - Thelypteris robertiana (Hoffm.) Slosso - Limestone Oak Fern
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Peter M Greenwood: Gymnocarpium robertianum (Hoffm.) Newman - Thelypteris robertiana (Hoffm.) Slosso - Limestone Oak Fern
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Peter M Greenwood: Gymnocarpium robertianum (Hoffm.) Newman - Thelypteris robertiana (Hoffm.) Slosso - Limestone Oak Fern
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Peter M Greenwood: Gymnocarpium dryopteris (L.) Newman - Oak Fern
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Peter M Greenwood: Cystopteris fragilis (L.) Bernh. - Brittle bladder-fern
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Peter M Greenwood: Cystopteris fragilis (L.) Bernh. - Brittle bladder-fern
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Peter M Greenwood: Cystopteris fragilis (L. ) Bernh. - Brittle Bladder Fern
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Peter M Greenwood: Cystopteris fragilis (L. ) Bernh. - Brittle Bladder Fern
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Peter M Greenwood: Cystopteris fragilis (L.) Bernh. - Brittle Bladder-fern
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Peter M Greenwood: Cystopteris fragilis (L.) Bernh. - Brittle Bladder-fern
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Peter M Greenwood: Cystopteris fragilis (L.) Bernh. - Brittle Bladder-fern