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Spotted souslik is one of the most endangered mammal species in Poland. Over the last few decades of the 20th century its population gradually decreased due to the influence of natural and anthropogenic factors: degradation of species habitats and reduction of their acreage. The aim of the study is to examine changes in the population of spotted souslik in eastern Poland, against threats to the species...
This paper presents the distribution of Pedicularis sylvatica, an endangered species across the whole Poland. In order to illustrate its dynamics four time periods were taken into consideration: before 1900, 1901-1950, 1951-1990 and after 1990. Until the present, 599 localities of P. sylvatica, have been known, half of which, i.e. 276 were recorded during intensive studies on wetland habitats in the...
The type and distribution (locations) of calcium oxalate crystals in mature leaves of 19 taxa of Philodendron (subgenera Meconostigma, Pteromischum and Philodendron) were studied. The calcium oxalate crystals were mainly found in the form of raphides, druses, styloids and prisms. The leaves of Philodendron demonstrate the presence of five distinctive raphide crystal types (biforine, thin-walled spindle-shaped,...
A rare and protected species of the sedge Carex secalina was recorded in Dulsk near Inowrocław (Kujawy-Pomerania Province) in June 2014. It occupied the shores of ephemeral midfield water reservoirs in the complex of intensively used crop fields. Two subpopulations of this sedge with 36 tussocks in total were found. In the first subpopulation, the tussock diameter reached up to 25 cm, with 12–16 generative...
We provide information about two species, Pilosella bauhinii and P. cymosa subsp. vaillantii (Asteraceae), from new localities in north-central Poland (ATPOL DC18). All individuals of both species grew on a railway embankment in Górzno-Lidzbark Landscape Park. The ecological preferences for P. cymosa and P. bauhinii estimated according to average Ellenberg values nearly coincided with the original...
Coronilla vaginalis Lam., a Central European montane species, is reported for the first time from Poland, from the Tatra Mountains. A general map of the taxon’s distribution is given, and the location of the newly recorded stand is shown on a map of Poland and the Tatra National Park. Its habitat, calcareous grassland of the order Seslerietalia, is characterized in detail.
This paper presents the macromorphological and micromorphological characteristics of wood barley recorded in the Wielkopolska Lowland. On the basis of the collection of preserved specimens, the micromorphological features were examined under a scanning electron microscope (SEM) to assess their taxonomic value. The principal features include the size and shape of cork/silica cells, crown cells, prickles,...
The aim of this study, which was conducted in field conditions on three localities in Serbia during two years, was to investigate the influence of the application of various types of fertilizers on the essential oil content in caraway, anise and coriander fruits. The influence of four organic fertilizers was investigated: two microbiological fertilizers (Slavol and Bactofil B-10), two specific organic...
The present paper provides new records of Protostropharia alcis in Poland. So far this species was known in the country only from several latest localities in the Biebrza National Park (Biebrza Basin) and the Kampinos National Park (Warsaw Basin). The new localities are situated in the Wigierski National Park (the East Sudetian Lake District) and in the north-western slope of Mt Wierzejska (the Holy...
This paper presents the results of study of the fossil fish remnants from the Early Pliocene strata of Priozernoe locality (Republic of Moldova). Nine species, belonging to seven genera, five families and five orders (Acipenseriformes, Cypriniformes, Siluriformes, Esociformes, and Perciformes) were identified. Most of the identified taxa are morphological analogues of extant forms. The investigated...
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