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Siedlce, Poland

Rostanski K.,University of Silesia | Marciniuk P.,Zaklad Botaniki
Fragmenta Floristica et Geobotanica Polonica | Year: 2010

As the result of the research, conveyed between 2005 and 2008 in the area of Wysoczyzna̧ Ciechanowska, distribution of 9 taxa (Oenothera hoelscheri, Oe. hoelscheri var. rubricalyx, Oe. flaemingina, Oe. depressa, Oe. depressa fo. angustifolia, Oe. rubricaulis, Oe. biennis, Oe. biennis var. brevihypanthialis and Oe. casimiri) and 1 spontaneous crossbreed of Oenothera genus (Oe. biennis × Oe. depressa) have been presented in the system of ATPOL squares. Source


Ornamental plants of northern American origin Euphorbia marginata, Rudbeckia bicolor. Yucca fiaccida and eastern Asiatic Miscanthus sacchariflorus were found in 2(K)8 on dormant sedimentation ponds of the Siersza Power Plant in Trzebinia city (western Małopolska). E. marginata, M. sacchariflorus and R. bicolor are rare neophytes in the Polish flora that sometimes escape from floricultures. Y. fiaccida is a new anthropophyte which has been known until now only from garden cultures. Plants grew on warm base-rich and sandy coal ashes between pioneer thermophilous vegetation of Melilotetum albo-officinalis association on embankments of dry sedimentation ponds. In 2011 populations of these taxa were still in good condition, in spite of increasing overshadow by thicket of Robinia pseudoacacia. Species were probably brought with a garden soil used for recultivation; specific microsite conditions might have supported their persistence. Source


Oklejewicz K.,University of Rzeszow | Marciniuk J.,Zaklad Botaniki | Marciniuk P.,Zaklad Botaniki | Cop P.,Ul. Nowodworze 3 | And 3 more authors.
Fragmenta Floristica et Geobotanica Polonica | Year: 2012

This paper lists 124 rare and interesting vascular plant species (28 Taraxacum species) from the boundary between Beskid Niski Mts and Jasto-Sanok Basin. Source


Czerwik-Marcinkowska J.,Zaklad Botaniki | Massalski A.,Zaklad Botaniki | Olech M.,Zaklad Badan i Dokumentacji Polarnej Im. Prof. Z. Czeppego | Wojciechowska A.,Nicolaus Copernicus University
Polish Polar Research | Year: 2015

This paper offers a comparison of Muriella decolor specimens from different geographical regions and habitats (limestone caves in Poland and ice denuded areas near the Ecology Glacier, King George Island, South Shetland Islands, West Antarctic). Morphological and cytological variability, ecology and life strategies of M. decolor were studied in fresh samples, and also in cultures grown on agar plates. The complete life cycle, with detailed ultrastructural (LM and TEM) analysis are presented. The electron microscopic observations prove that materials identified as M. decolor collected in Poland and the Antarctic have distinct ultrastructural features. These include the chloroplast lamella arrangement, mitochondrial cristae structure and the cell wall thickness. © 2015 Polish Academy of Sciences. Source


Krechowski J.,Zaklad Botaniki | Piorek K.,Zaklad Botaniki | Wierzba M.,Zaklad Botaniki | Strzalek M.,Katedra Ekologii I Ochrony Srodowiska
Fragmenta Floristica et Geobotanica Polonica | Year: 2010

Most ot Salvinia natans localities were recorded from the upper course of Vistula and uara rivers. The species is included to the group of species vulnerable in Poland. In the paper a characteristic of the first two localities of S. natans found in 2008 in the Bug river valley is presented. The stations are located in old river beds on the other side of locality Nur (coordinates: 52°40'03" N, 22°17'51" E; ATPOL square FC75) and 1,5 km NE of Szumin village (coordinates: 52°36'31" N, 21°37'49" E; ATPOL square FC70). Source

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