Temat: systematics; - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Redefinition of the genera Malaxis Sol. ex Sw. and Microstylis [Nutt.] Eaton [Orchidaceae, Epidendroideae]
Autorzy:: Szlachetko, D L
Margonska, H.B.
Powiązania:: https://bibliotekanauki.pl/articles/58410.pdf
Data publikacji:: 2006
Wydawca:: Polskie Towarzystwo Botaniczne
Tematy:: redefinition
Malaxis
Malaxidinae
taxonomy
systematics
Microstylis
Orchidaceae
Epidendroideae
Opis:: A new definition of the genera Malaxis Sol. ex Sw. and Microstylis (Nutt.) Eaton is presented. The genera are briefly described and illustrated. A list of Microstylis species is added. Four new nomenclatural combinations are proposed.
Źródło:: Acta Societatis Botanicorum Poloniae; 2006, 75, 3; 229-231
0001-6977
2083-9480
Pojawia się w:: Acta Societatis Botanicorum Poloniae
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Pollen morphology of Quercus (subgenus Quercus, section Quercus) in Iran and its systematic implication
Autorzy:: Panahi, P.
Pourmajidian, M.R.
Pourhashemi, M.
Powiązania:: https://bibliotekanauki.pl/articles/57449.pdf
Data publikacji:: 2012
Wydawca:: Polskie Towarzystwo Botaniczne
Tematy:: pollen morphology
Quercus
Iran
systematics
taxonomy
pollen grain
pollen type
Opis:: For the first time, pollen morphology of 9 (4 spp. and 5 subspp.) taxa representing lobed leaved oaks of Iran in the family of Fagaceae has been examined and illustrated using light microscopy and scanning electron microscopy of acetolysed material. Detailed pollen morphological characteristics are given for Quercus section. The pollen grains are single, isopolar, radially symmetrical, tricolpate, tricolporoidate or tricolporate. Pollens were studied to show all possible characteristics like shape, size, apertures, wall thickness, etc., with special reference to the specific features of each pollen type such as structural, sculptural and suprasculptural patterns. There is considerable variation in pollen morphology between taxa so that, three types of pollen shape, five types of structural pattern, two types of sculptural pattern, five types of suprasculptural pattern and three types of perfora distribution are defined. Furthermore, the relationship between pollen morphology and taxonomy is discussed. Overall, pollen characters are shown to be a useful and informative tool for assessing taxonomic position within Quercus section in Iran.
Źródło:: Acta Societatis Botanicorum Poloniae; 2012, 81, 1
0001-6977
2083-9480
Pojawia się w:: Acta Societatis Botanicorum Poloniae
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Genetic variability of Euglena agilis [Euglenophyceae]
Autorzy:: Zakrys, B
Empel, J.
Milanowski, R.
Gromadka, R.
Borsuk, P.
Kedzior, M.
Kwiatowski, J.
Powiązania:: https://bibliotekanauki.pl/articles/58369.pdf
Data publikacji:: 2004
Wydawca:: Polskie Towarzystwo Botaniczne
Tematy:: phylogenesis
Euglenida
Euglena
genetic variability
molecular systematics
botany
taxonomy
Euglenophyceae
Euglena agilis
Opis:: The results of the internal transcribed spacer (ITS2) of extrachromosomal rDNA and the chloroplast SSU rDNA sequence analysis presented here confirmed elevated genetic polymorphism revealed earlier by RFLP and RAPD for seven clones of the cosmopolitan species - Euglena agilis Carter. High diversity among these clonal strains was not reflected by morphological criteria, with the exception of the only one character - the ability of the cell in its non-motile dividing states (palmella) to produce mucus and form a slimy envelope. Evolutionary adaptation as formation of slimy envelope may be attributed to different survival strategy of the species by which it adapts to life in a highly variable environment.
Źródło:: Acta Societatis Botanicorum Poloniae; 2004, 73, 4
0001-6977
2083-9480
Pojawia się w:: Acta Societatis Botanicorum Poloniae
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Morphological variability of the Caltha palustris L. complex [Ranunculaceae] in Poland
Autorzy:: Cieslak, E
Powiązania:: https://bibliotekanauki.pl/articles/58487.pdf
Data publikacji:: 2004
Wydawca:: Polskie Towarzystwo Botaniczne
Tematy:: Ranunculaceae
systematics
Caltha palustris ssp.cornuta
botany
statistics
morphological variability
Caltha laeta
Caltha palustris ssp.radicans
taxonomy
Caltha palustris ssp.palustris
Caltha palustris
Opis:: The paper presents results of biosystematic analysis of the critical group of Caltha palustris L. based on 71 populations from Poland. After a preliminary statistical analysis, fourteen morphological characters (nine quantitative and five qualitative), describing size and shape of basal leaves and mature follicles as well as stem morphology, were selected for the clearest differentiation of the complex. Several groups of morphotypes were distinguished within the complex, based on the statistical analysis of this group of characters. Against this background the taxonomy of the complex is proposed. Two species - Caltha laeta Schott, Nyman and Kotschy and Caltha palustris L. - and three subspecies within C. palustris (C. p. subsp. palustris, C. p. subsp. cornuta (Schott, Nyman and Kotschy) Hegi and C. p. subsp. radicans (T.F. Forst.) Syme, were distinguished in Poland. The status of the taxa within the Polish flora is defined. The paper includes also a key for determination of the complex taxa, as well as their detailed descriptions.
Źródło:: Acta Societatis Botanicorum Poloniae; 2004, 73, 3
0001-6977
2083-9480
Pojawia się w:: Acta Societatis Botanicorum Poloniae
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Arbuscular mycorrhiza of plants spontaneously colonizing the soda heap in Jaworzno [Southern Poland]
Autorzy:: Gucwa-Przepiora, E
Blaszkowski, J.
Powiązania:: https://bibliotekanauki.pl/articles/58548.pdf
Data publikacji:: 2007
Wydawca:: Polskie Towarzystwo Botaniczne
Tematy:: mycorrhizal status
Polska
spore population
Glomus
soda heap
fungi
Jaworzno
plant systematics
host
Upper Silesian region
Trifolium montanum
plant species
Glomeromycota
industrial waste
Centaurea stoebe
Opis:: The results of studies of the mycorrhizal status of plant species spontaneously established on the soda heap located in Jaworzno (Upper Silesia, Poland) are presented. Additionally, the species of arbuscular fungi of the phylum Glomeromycota extracted from field-collected rhizosphere substrate samples of the heap are showed. Arbuscular mycorrhizae were described in 17 plant species. Five Glomus spp. were recognized in the spore populations of arbuscular fungi isolated. The investigation presented in this paper for the first time revealed Centaurea stoebe and Trifolium montanum to be hosts of arbuscular fungi.
Źródło:: Acta Societatis Botanicorum Poloniae; 2007, 76, 1
0001-6977
2083-9480
Pojawia się w:: Acta Societatis Botanicorum Poloniae
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Pollen morphology of Polish native species of the Rosa genus (Rosaceae) and its relation to systematics
Autorzy:: Wronska-Pilarek, D.
Powiązania:: https://bibliotekanauki.pl/articles/57587.pdf
Data publikacji:: 2011
Wydawca:: Polskie Towarzystwo Botaniczne
Tematy:: pollen morphology
Polish species
native species
Rosa
Rosaceae
systematics
Caninae
Gallicanae
taxonomy
Rosa agrestis
Rosa canina
Rosa dumalis
Rosa gallica
Rosa inodora
Rosa jundzillii
Rosa kostrakiewiczii
Rosa majalis
Rosa micrantha
Rosa mollis
Rosa pendulina
Rosa rubiginosa
Rosa sherardii
Rosa tomentosa
Rosa villosa
Rosa zalana
Opis:: The morphology of pollen grains of 16 species from the Rosa L. genus were studied (i.e. R. agrestis, R. canina, R. dumalis, R. gallica, R. inodora, R. jundzillii, R. kostrakiewiczii, R. majalis, R. micrantha, R. mollis, R. pendulina, R. rubiginosa, R. sherardii, R. tomentosa, R. villosa, and R. zalana). The material came from 16 native localities of those species in Poland. The measurements are based on at least 30-50 randomly selected, fully developed pollen grains per specimen. In total, 500 pollen grains were examined. They were analysed for 13 quantitative features of pollen grains and exine sculpturing and the following qualitative traits: outline, shape, "operculum" structure. The diagnostic features of pollen grains of studied species were: length of polar and equatorial axes and length of ectocolpi. The above-mentioned pollen grain morphological features make isolation of one species possible: R. gallica. R. gallica is distinguished for its highest values of the length of polar and equatorial axes, and the length of ectocolpi. The obtained analytical results of operculum and exine sculpture features, considered as diagnostic, corroborated only slightly their priority significance for the isolation of the examined species and sections. The collected data failed to confirm fully the current taxonomical division of the Rosa genus into sections (only section Gallicanae from R. gallica is isolated) as well as consanguinity relationships between the examined species from the Caninae section. On the dendrogram, both species closely related with each other as well as those from other developmental lines were found in the same group. These equivocal results are by no means surprising because the Caninae section is the most polymorphic group in the Rosa genus, and contemporary Caninae are of the nature of a swarm of R. canina hybrids as a link combining all taxons of the section.
Źródło:: Acta Societatis Botanicorum Poloniae; 2011, 80, 3
0001-6977
2083-9480
Pojawia się w:: Acta Societatis Botanicorum Poloniae
Dostawca treści:: Biblioteka Nauki

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