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Notes on the diatom species Tetracyclus castellum (Ehrenb.) Grunow with a description of Tetracyclus pseudocastellum nov. sp
Vol 27, Iss 1, Page 1, Date 1997-06-27
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A new species of Calymperes (Musci: Calymperaceae) from Peninsular Malaysia
Vol 27, Iss 1, Page 7, Date 1997-06-27
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A phylogenetic conspectus of the tribe Hyoscyameae (Solanaceae)
Vol 27, Iss 1, Page 11, Date 1997-06-27
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A revision of Solanum section Pteroidea: Solanaceae
Vol 27, Iss 1, Page 31, Date 1997-06-27