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Spontaneous occurrence of Cotoneaster lucidus Schltdl. in the town of Augustow (NE Poland)

100%

Pliszko A.

tom 18

nr 1

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 20 m². Phytosociological characteristics of the habitat is provided, and the potential threats are discussed.

Nowe stanowisko Cuscuta campestris (Cuscutaceae) i Picris echioides (Asteraceae) na Pojezierzu Zachodniosuwalskim (NE Polska)

100%

Pliszko A.

tom 17

nr 1

Rzadkie, zagrożone i prawdopodobnie wymarłe rosłiny naczyniowe rererwatu "Ruda" w dolinie Rospudy

100%

Pliszko A.

nr 3

Występowanie Potamogeton acutifolius (Potamogetonaceae) na Pojezierzu Zachodniosuwalskim (NE Polska)

100%

Pliszko A.

nr 1

A new locality of Solidago x niederederi Khek (Asteraceae) in Poland

100%

Pliszko A.

tom 29

Nowe stanowisko madziaka malinowego Mutinus ravenelii (Phallaceae) na Wyżynie Śląskiej

100%

Pliszko A.

tom 25

nr 2

Interesujące stanowisko groszku wschodniokarpackiego Lathyrus laevigatus [Waldst. and Kit.] Gren. na Pojezierzu Zachodniosuwalskim

100%

Pliszko A.

nr 4

Additional data to the occurrence of Erigeron acris subsp. serotinus (Weihe) Greuter (Asteraceae) in Europe

100%

Pliszko A.

tom 18

nr 1

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.

Nowe stanowiska rzadkich i zagrozonych roslin naczyniowych na Pojezierzu Zachodniosuwalskim

100%

Pliszko A.

tom 20

nr 1-2

3-10

Kolorowe podsadki gwiazdy betlejemskiej

63%

Pliszko A. , Stachurska-Swakon A.

nr 10-12

Reduced pollen viability and achene development in Solidago x niederederi Khek from Poland

45%

Migdalek G. , Kolczyk J. , Pliszko A. , Koscinska-Pajak M. , Slomka A.

2014

tom 83

nr 3

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 reduced to ~65% in both viability tests (acetocarmine and Alexander). The diameter of viable pollen (median 21.11 μm) fell between S. canadensis (median 19.52 μm) and S. virgaurea (median 23.48 μm). Both parental species produced normally developed achenes with high frequency (~90%) whereas in the hybrid, the seed set was dramatically low (6%). The results clearly indicated that sexual reproduction of hybridogenous taxon S. ×niederederi is disturbed, and its potential impact as an invasive species depends mainly on vegetative propagation.

Male and female reproductive success in natural and anthropogenic populations of Malaxis monophyllos (L.) Sw. (Orchidaceae)

45%

Jermakowicz E. , Ostrowiecka B. , Talalaj I. , Pliszko A. , Kostro-Ambroziak A.

tom 39