Wyniki wyszukiwania

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A current status of the population of Primula farinosa L. (Primulaceae) at the only one known site in Poland

100%

Gajewski Z., Sitek E., Stolarczyk P., Nowak B., Kapala K.

Polish Journal of Ecology

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2013

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tom 61

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nr 4

Primula farinosa L. of Primulaceae family is a protected, rare and critically endangered species of Polish flora. All lowland sites of this species do not longer exist at present. The population number of the only one mountainous site discovered in 1959 in Beskid Sądecki (South Poland) is violently decreasing. The reasons for decrease in the population can be complex and associated with changes in both habitat changes and low effectiveness of propagation. In the course of the study, the population number was estimated and selected aspects of the biology of flowering of P. farinosa were assessed, phytosociological and habitat characteristics of the environment were prepared. The population amounted to 158 flowering specimens in 2011. Improper age structure of the population, characterized by a small share of juvenile plants indicates a possible regression of the population. The share of expansive species increased in the floristic composition of phytocoenosis as compared to historical sources. The assessed elements of generative propagation do not provide any grounds to suppose that the decrease of the population number is caused by disturbances in this field. High- and short-styled flowers are present in the population, a pollen is viable and new seeds are potentially able to germinate.

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Further studies in chromosome numbers of Polish angiosperms. Part XXIV

100%

Pogan E., Jankun A., Wcislo H.

Acta Biologica Cracoviensia. Series Botanica

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1991

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tom 33

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Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Chromosome numbers and polyploidy in life forms of Asteraceae, Poaceae and Rosaceae in Polish flora

100%

Goralski G., Bal M., Gacek P., Orzechowski T. M., Kosecka-Wierzejska A.

Acta Biologica Cracoviensia. Series Botanica

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2014

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tom 56

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nr 1

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Chromosome numbers and polyploidy in Polish angiosperms

100%

Gacek P., Goralski G., Joachimiak A. J.

Acta Biologica Cracoviensia. Series Botanica

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2011

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tom 53

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nr 2

Our survey of data collected in the Chromosome Number Database for Polish angiosperms indicated that the 1,498 species with chromosome counts represent 40% of the total angiosperms (3,719) occurring in Poland, including 1,205 native species (53% of native species) and 194 anthropophytes (56% of anthropophytes). The chromosome numbers are known for all native species occurring in Poland within 298 genera and 46 families, and for all anthropophytes from 79 genera and 11 families. The remaining angiosperm groups are less explored: chromosome counts from Poland are known for 9% of cultivated species and 5% of ephemerophytes. According to generic basic chromosome numbers, 46.44% of Polish angiosperms have been classified as polyploid. By three different threshold methods, the contribution of polyploid plants to the Polish flora is 64.64%, 50.89% or 42.89%. Polyploidy is more common among indigenous than non-indigenous plants, and the ploidy distribution among plants from the Polish Tatras does not differ significantly from that observed in the rest of native Polish plants.

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Morphological, anatomical and geographical characteristics of Eragrostis cilianensis [Poaceae]

100%

Latowski K., Czarna A.

Fragmenta Floristica et Geobotanica

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1996

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tom 41

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nr 2

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Rubus occidentalis (Rosaceae) - a new naturalized raspberry species in the Polish flora

84%

Kosinski P., Czarna A., Malinski T.

Dendrobiology

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2014

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tom 71

Rubus occidentalis L., native to eastern North America, is recorded for the first time as naturalized in Poland. Its spontaneous occurrence in Europe has hitherto been mentioned only from several stands in the Czech Republic and from single localities in Slovakia and Russia. The increasing popularity of black raspberry cultivation and its ability to survive under different environmental conditions suggest that the number of instances of its appearances in semi-natural habitats will grow over time. At the moment, R.occidentalis can be considered as a locally established, non-invasive neophyte.

7

Anabaena poulseniana J. Boye Petersen – a species new to Polish flora

84%

Richter D.

Oceanological and Hydrobiological Studies

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2013

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tom 42

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nr 3

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Survival problems of archaeophytes in the Polish flora

84%

Zajac M., Zajac A.

Biodiversity: Research and Conservation

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2014

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tom 35

9

Oenothera oehlkersii Kappus ex Rostański - a new evening-primrose species in Polish flora

84%

Wolanin M., Wozniak M.

Biodiversity: Research and Conservation

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2011

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tom 23

10

Effect of sucrose and nitrogen salts levels in the medium on the endogenous carbohydrate content in the Helleborus niger L and Helleborus purpurascens Waldst. et Kit. shoots propagated in vitro

84%

Gabryszewska E., Wegrzynowicz-Lesiak E.

BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology

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2015

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tom 96

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nr 1

Ograniczanie wyników

A current status of the population of Primula farinosa L. (Primulaceae) at the only one known site in Poland

Further studies in chromosome numbers of Polish angiosperms. Part XXIV

Chromosome numbers and polyploidy in life forms of Asteraceae, Poaceae and Rosaceae in Polish flora

Chromosome numbers and polyploidy in Polish angiosperms

Morphological, anatomical and geographical characteristics of Eragrostis cilianensis [Poaceae]

Rubus occidentalis (Rosaceae) - a new naturalized raspberry species in the Polish flora

Anabaena poulseniana J. Boye Petersen – a species new to Polish flora

Survival problems of archaeophytes in the Polish flora

Oenothera oehlkersii Kappus ex Rostański - a new evening-primrose species in Polish flora

Effect of sucrose and nitrogen salts levels in the medium on the endogenous carbohydrate content in the Helleborus niger L and Helleborus purpurascens Waldst. et Kit. shoots propagated in vitro