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First record of the austral species Plocamium secundatum (Gigartinales, Rhodophyta) from the Mediterrean Sea
Vol 12, Iss 4, Page 235, Date 1991
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Rediscovery of Bulbochaete longipes Bourrelly from India
Vol 12, Iss 4, Page 245, Date 1991
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The effect of light regime on the photosynthetic apparatus of the freshwater red alga Batrachospermum boryanum
Vol 12, Iss 4, Page 249, Date 1991
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Observations en microscopie à fluorescence des noyaux du Cladophora pygmaea (Cladophoracée, Siphonocladales)
Vol 12, Iss 4, Page 265, Date 1991
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Strombomonas (Euglenophyta) nuevas o raras de la Argentina
Vol 12, Iss 4, Page 271, Date 1991
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The identity of Arachnophyllum delilei Montagne
Vol 12, Iss 4, Page 283, Date 1991
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Charophyta from Babylon (Republic of Iraq)
Vol 12, Iss 4, Page 289, Date 1991
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Ouvrages reçus pour analyse
Vol 12, Iss 4, Page 301, Date 1991
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Table du Tome 12
Vol 12, Iss 4, Page 303, Date 1991