The list of alien plants of urban flora of Mykolayiv includes 244 species from 171 genera, 56 families, 2 classes, 1 divisio.

In Pereyaslav-Khmelnytskiy and its outskirts (Kyiv region, Ukraine), 66 species of bryophytes were found. Among them, three species (Aulacomnium androgynum (Hedw.) Schwägr., Bryum violaceum Crundw. et Nyh. and Orthotrichum diaphanum Schrad. ex Brid.) have not been previously reported for the Left-Bank Forest-Steppe of Ukraine, whilst another three (Dicranum tauricum Sapjegin, Sciuro-hypnum reflexum (Starke) Ignatov et Huttunem and Orthotrichum striatum Hedw.) are appeared to be rare  for this territory.  In general, the town’s bryophyte flora consists of forest species and relatively less of weedy taxa.

The outcomes of introduction and overwintering in winter 2005-2006 are adduced of 35 species wood plants in State Enterprise Experimental Farm Novokakhovskoe of Nikita Botanical Garden National Scientific Center.

A presence of 40 alien invasive plant species within plant communities of 21 class of vegetation of Ukraine was  found together with  syntaxonomical preferences of invasive species. Species–  transformers of natural and seminatural plant communities are listed. A place and role of differentvegetation classes with different sensitivity to invasions are defined in the whole invasive process.

The results of the detail analysis of pollen grain features of 16 Juglans species confirmed the importance of these features for taxonomy, mainly at the section level. Morphological features of pollen grains of each species derived from different habitats (both cultivated in Ukraine and ones from natural habitats) are  compared for the first time.

Calculating the modified index of air pollution (I.A.P.) (Kondratyuk, 1996,) for 301 points in the Yalta amphitheatre, a range of meaningsfrom 0 to 87 was obtained. The data was used as the basis for map zoning. Six isotoxical lichen zones were  distincted: polluted zone (I.A.P. from 0 to 5), moderately polluted zone (I.A.P. from 6 to 10), slightly polluted zone (I.A.P. from 11 to 20), moderately clean zone (I.A.P. from 21 to 30), background clean zone (I.A.P. from 31 to 40), zone of high cleanness (I.A.P. from 41 and higher). 134 corticolous lichens have been found in the urbane localities of the Yalta  amphitheatre. The polluted zone in the Yalta town is formed by areas with heavy traffic along the streets Sadovaya, Karla Marksa, Marshaka, Moscowskaya, Kievskaya, Ruzvel'ta and Sverdlova with 14 species of lichens found here (0 – 5 species per each tree). The moderately polluted zone is adjacent to the pollution zone extending into a town by two sleeves along valleys of the rivers Derekoyka and Vodopadnaya (Uchansu). 27 corticolous lichens were found in this zone. The slightly polluted zone includes three separated localities which covering mostly the urbanized territories of Yalta. The moderately clean zone covers large areas including foot of the hill Darsan and most of  parklands. 56 species of corticolous  lichens occur in this zone. The background clean zone is mainly located in the north (up from Vinogradne), north-west (Polyana Kazok) and the east (around Otradne) of urbanized ecosystems in the Yalta amphitheatre. 63 lichen species have been found here. The zone of high cleanness is small and comprizes four separated localities in Livadiya, park at the sanatorium “Russia”, on the hill Darsan and in the Nikita region . 107 species of corticolous lichens have been found in this zone. In general, the air quality in urbanized landscape  of whole Yalta amphitheatre can be considered moderately clean, but in the town of Yalta, slightly polluted zone  prevails.

Populations of seven species of Allium L. were studied in the Mykolayiv Region with evaluating. vitality of individuals and quality and vitality type of coenopopulations. It is revealed, that negative changes in vitality structure of population are caused by strengthening of human activity impact.

Species of algae found in Chongar Peninsula are listed together with data on their distribution in different geographical zones and biotopes of Ukraine.

The article reported that in several mud volcanoes of the Kerch Peninsula found 21 species of moss, that belong to 16 genera, 6 families, 2 avascular higher plants  divisions – Marchantiophyta and Bryophyta. Observed substrate preferences of these moss in the studied landscape highlight their timed to floral classes of vegetation. The results of structural analysis of mud volcanoes bryophlora. The article contains an annotated list of species, noting points of collection.

Distribution and ecology of two new for Ukraine lichen species (Toninia physaroides (Opis) Zahlbr.  and Caloplaca muscorum (A.Massal.) M.Choisy & Werner) and 14 rare species  from nature reserve “Yelanetsky Step” are elucidated in the article.

Difference in the species diversity of myxomycetes collected at the territories of Mezynsky National Nature Park by Professor I. G. Borshchov in 1868 and by the authors in 2008 are discussed. Only 9 species  were found to be common for list of Borshchov’s collections and list of collections made in 2008: Arcyria cinerea (Bull.) Pers., Comatricha nigra (Pers. ex J.F. Gmel.) J.Schrцt., Didymium melanospermum (Pers.) T. Macbr., Fuligo septica (L.) F.H. Wigg., Hemitrichia clavata (Pers.) Rostaf., Lycogala epidendrum (L.) Fr., Stemonitis fusca Roth, Trichia varia  (Pers. ex J.F. Gmel.) Pers. and  Tubulifera arachnoidea Jacq.  It was not succeeded to find 7 slime molds species which were revealed by Professor I.G. Borshchov in 1868: Amaurochaete atra (Alb. & Schwein.) Rostaf.,  Arcyria denudata (L.) Wettst., Brefeldia maxima (Fr.) Rostaf., in Fuckel, Jahrb., Leocarpus fragilis (Dicks.) Rostaf., Physarum psittacinum Ditmar, Trichia decipiens (Pers.) T. Macbr. and Trichia favoginea (Batsch) Pers. but 13 previously unknown for park territory species were collected in 2008 field season: Arcyria ferruginea Saut.,  A. incarnata (Pers. ex J.F. Gmel.) Pers., A. stipata (Schwein.) Lister, Badhamia macrocarpa (Ces.) Rostaf., Ceratiomyxa fruticulosa (O.F. Müll.) T. Macbr., Cribraria tenella Schrad., Diachea leucopodia (Bull.) Rostaf., Didymium squamulosum (Alb. & Schwein.) Fr., Metatrichia vesparia (Batsch) Nann.-Bremek. ex G.W.Martin & Alexop., Physarum album (Bull.) Chevall., Ph.  leucopus Link, Reticularia lycoperdon Bull. and Stemonitopsis typhina (F.H. Wigg.) Nann-Bremek. Some aspects of myxomycetous ecological peculiarities, namely substrate adaptation, are considered.

In the big life cycle of Sobolewskia sibirica, a relict endemic to the flora of Crimean Montains, late generative stage and senile  stage are absent in todays popoulations. Generative development of plants is limited by summer lack of the  water. When growing ex situ in the Southern Coast of the Crimea, the plants show complete ontogenesis  including senile age. The morphological characters of late age stages in S. sibirica  are revealed.

Data about the new for the southern Ukraine pathogenic fungus Rhizina undulata Fr. are provided. The fungus caused illness and following total death of pine-trees seedlings, which were planted in a fall-winter period 2007-2008 in order to replace artificial pine forest (Pinus sylvestris L. , P. pallasiana D. Don.) that had burned out during forest conflagrations  in August 2007.