BOTANICAL NOTE
Nowe dane o występowaniu Silene borysthenica (Caryophyllaceae) na Nizinie Środkowomazowieckiej
 
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Ukryj
1
Ogród Botaniczny - Centrum Zachowania Różnorodności Biologicznej w Powsinie, Polska Akademia Nauk, Polska
2
Zakład Ekologii Roślin i Ochrony Środowiska, Wydział Biologii, Uniwersytet Warszawski, Polska
AUTOR DO KORESPONDENCJI
Iwona Dembicz   

Ogród Botaniczny - Centrum Zachowania Różnorodności Biologicznej w Powsinie, Polska Akademia Nauk, ul. Prawdziwka 2, 02-973, Warszawa, Polska
Data nadesłania: 11-10-2019
Data ostatniej rewizji: 29-11-2019
Data akceptacji: 10-12-2019
Data publikacji online: 31-12-2019
Data publikacji: 31-12-2019
 
Fragm. Flor. et Geobot. Pol. 2019; XXVI(2): 390–396
 
STRESZCZENIE ARTYKUŁU
Silene borysthenica is a species typical for psammophytic grassland. In Poland it is very rare and endangered, due to the abandonment of traditional grazing and to direct destruction of its habitat (afforestation, urbanization). Only a few of its localities known in the 20th century have been confirmed recently. In 2015 a new locality of S. borysthenica near Wyszków in the Bug River valley was found, and in 2016 a locality probably known previously, near Wieliszew close to Zegrzyńskie Lake, was confirmed (Fig. 1, Tabs 1, 2). The species may vanish from both localities in the coming years as a result of many potential threats, including succession toward forest vegetation (both localities), uncontrolled use of motorbikes and quads in the area (Wyszków), and reconstruction of a railway track which is planned for the near future (Wieliszew). Collection of seeds from both populations is highly recommended, to ensure at least ex situ protection of the Polish S. borysthenica populations.
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