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Ruud de Block: Sphaeropteris cooperi (F. Muell.) R. M. Tryon - BG Madeira
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Ruud de Block: Sphaeropteris cooperi (Hook. ex F.Muell.) R.M.Tryon (Syn. Cyathea cooperi (Hook. ex F.Muell.) Domin) - Monte Palace Madeira
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Ruud de Block: Sphaeropteris cooperi (Hook. ex F.Muell.) R.M.Tryon (Syn. Cyathea cooperi (Hook. ex F.Muell.) Domin) - Monte Palace Madeira
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Ruud de Block: Sphaeropteris cooperi (Hook. ex F.Muell.) R.M.Tryon (Syn. Cyathea cooperi (Hook. ex F.Muell.) Domin) - Monte Palace Madeira
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Ruud de Block: Sphaeropteris cooperi (Hook. ex F.Muell.) R.M.Tryon (Syn. Cyathea cooperi (Hook. ex F.Muell.) Domin) - Monte Palace Madeira
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Ruud de Block: Sphaeropteris cooperi (Hook. ex F.Muell.) R.M.Tryon (Syn. Cyathea cooperi (Hook. ex F.Muell.) Domin) - Monte Palace Madeira
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Ruud de Block: Sphaeropteris cooperi (Hook. ex F.Muell.) R.M.Tryon - Jardim do Grottes de Sao Vincente 230417
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Ruud de Block: Alsophila firma (Baker) D. S. Conant (Syn. Nephelea mexicana (Schltdl. & Cham.) R. M. Tryon) - Stekelige Mexicaanse boomvaren - BG Meise 230515-1