New and rare species of lichens for the Left-Bank part of Ukraine from cretaceous outcrops von A. B. Hromakova

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Tolypella glomerata (Charales), a new species for the algal flora of Ukraine von O. V. Borysova, A. B. Hromakova

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Japewia (Ramalinaceae, Ascomycota), a new genus for the lichen biota of Ukraine von Ye. Khodosovtsev, V. V. Darmostuk, A. B. Hromakova

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On the mass development of Pistia stratiotes (Araceae) in the Seversky Donets river (Kharkiv region) von H. O. Kazarinova, Yu. H. Hamulia, A. B. Hromakova

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