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This paper provides a floristic list of 111 vascular plant species recorded in the Polish part of the Lithuanian Lakeland in 2012–2014, using the ATPOL cartogram method. There are 36 native species, 53 established alien species, and 22 casual alien species. Among the established alien species there are 13 species native to Poland which have no natural geographical range in the Polish part of the Lithuanian...
Pollen and achene characters of natural interspecific hybrid Solidago ×niederederi Khek were analyzed and compared with putative parental species S. virgaurea L. and S. canadensis L. to estimate the level of disturbances in generative reproduction resulting from its hybrid nature. Pollen viability (stainability) of Solidago ×niederederi from one newly discovered locality in NE Poland was evidently...
W 2013 roku odkryto nowe stanowisko nasięźrzału pospolitego Ophioglossum vulgatum L. w dolinie Rospudy na Pojezierzu Zachodniosuwalskim. Stanowisko położone jest na terenie wsi Garbas Pierwszy (kwadrat FB0612 o boku 2,5 km sieci ATPOL). Na stanowisku stwierdzono zaledwie 24 osobniki strukturalne, rosnące w jednym skupieniu na wieloletnim odłogu. Dla zachowania nowo odkrytej populacji konieczne jest...
The paper presents 14 historical records of European-temperate Erigeron acris subsp. serotinus for Ukraine using herbarium voucher specimens deposited in two Polish herbaria KRA and KRAM. This neglected native taxon is probably frequent in western Ukraine, but its populations need to be refind.
Cotoneaster lucidus Schltdl., a potentially invasive alien plant in Poland, is reported from the town of Augustów for the first time (the ATPOL square: FB39). This is the second record of the species occurrence in north-eastern Poland. A new spontaneous population consists of 36 individual shrubs (groups of stems) dispersed on an area of about 0.2 ha, except one dense clump occupying an area of about...
Potamogeton ×salicifolius Wolfg., the hybrid between P. lucens L. and P. perfoliatus L., is recorded from north-eastern Poland for the fi rst time. The new station is located in the Wigry Lake (the Wigry National Park), within FB19 square unit of the ATPOL cartogram grid. The distribution is updated with one new population of vegetative ramets.
W 2009 roku odkryto nowe stanowisko fiołka mokradłowego Viola stagnina Kit. na Pojezierzu Zachodniosuwalskim, we wsi Garbas Pierwszy (ATPOL FB0612). Gatunek odnotowano w kilku zagłębieniach terenowych poza doliną rzeczną, w obrębie łąki kośno-pastwiskowej, gdzie wiosną stagnuje woda opadowo-roztopowa. Fiołek mokradłowy jest rzadkim i zagrożonym wyginięciem przedstawicielem polskiej flory oraz gatunkiem...
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