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Wyszukujesz frazę "Wiland, M." wg kryterium: Autor


Wyświetlanie 1-4 z 4
Tytuł:
Scanning electron microscopic studies of leaf surface in taxa of genus Dracaena L. (Dracaenaceae)
Autorzy:
Klimko, M.
Wiland-Szymanska, J.
Powiązania:
https://bibliotekanauki.pl/articles/878360.pdf
Data publikacji:
2008
Wydawca:
Uniwersytet Przyrodniczy w Poznaniu
Źródło:
Roczniki Akademii Rolniczej w Poznaniu. Botanika-Steciana; 2008, 12
1896-1908
Pojawia się w:
Roczniki Akademii Rolniczej w Poznaniu. Botanika-Steciana
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparative leaf morphology and anatomy of some neotropical Philodendron Schott (Araceae) species
Autorzy:
Klimko, M.
Wawrzynska, M.
Wiland-Szymanska, J.
Powiązania:
https://bibliotekanauki.pl/articles/790571.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Przyrodniczy w Poznaniu
Tematy:
plant species
leaf
plant morphology
plant anatomy
neotropical species
Philodendron
Araceae
Opis:
A comparative morphological and anatomical study on the petioles and lamina of 22 taxa (species, subspecies and cultivars) of the genus Philodendron (subgenera Meconostigma, Pteromischum and Philodendron) has been made in order to investigate interspecific differences which may be useful in species identification. All species have bifacial leaves with petioles, amphistomatic with a strongly reduced density of stomata on the adaxial leaf surface. The species differ in the size and shape of their epidermal cells, the distribution and types of stomata and cuticle ornamentation in the lamina, thickness of epicuticular layer, presence or absence of hypodermis, structure of spongy mesophyll, thickness of palisade and spongy mesophyll layers, as well as types of raphides, and in the structure and forms of petioles. A combination of these characters may be useful in species identification. This study shows that there is some variation in petiole and leaf morphological and anatomical characters among the 22 taxa of Philodendron. However, many characters are present in all of them and may be typical of the genus. The study revealed several detailed interesting epidermal and anatomical features that have not previously been reported in the genus.
Źródło:
Steciana; 2014, 18, 3
1689-653X
Pojawia się w:
Steciana
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Calcium oxalate crystals in some Philodendron Schott (Araceae) species
Autorzy:
Klimko, M.
Wawrzynska, M.
Wiland-Szymanska, J.
Powiązania:
https://bibliotekanauki.pl/articles/790700.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Przyrodniczy w Poznaniu
Tematy:
Philodendron
calcium oxalate crystal
locality
petiole
lamina
Meconostigma
Pteromischum
Araceae
Opis:
The type and distribution (locations) of calcium oxalate crystals in mature leaves of 19 taxa of Philodendron (subgenera Meconostigma, Pteromischum and Philodendron) were studied. The calcium oxalate crystals were mainly found in the form of raphides, druses, styloids and prisms. The leaves of Philodendron demonstrate the presence of five distinctive raphide crystal types (biforine, thin-walled spindle-shaped, wide cells containing a wide raphide bundle, bundles of obliquely overlapping crystal and unmodified cells with either a single crystal needle or their cluster). Styloids and druses were found in all taxa at varying frequencies. Simple prisms and variations in crystal forms were most frequently observed in the ground tissue in petioles and midribs. This study represents additional data concerning calcium oxalate crystals in Philodendron.
Źródło:
Steciana; 2016, 20, 3
1689-653X
Pojawia się w:
Steciana
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Micromorphology of stamens of some species of the genus Sansevieria petagna (Asparagaceae)
Autorzy:
Klimko, M.
Wysakowska, I.
Wilkin, P.
Wiland-Szymanska, J.
Powiązania:
https://bibliotekanauki.pl/articles/790519.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Przyrodniczy w Poznaniu
Tematy:
micromorphology
stamen
Sansevieria petagna
Asparagaceae
endothecium
filament
SEM analysis
taxonomy
Opis:
The paper presents in the first time the results of a micromorphological study on stamens of Sansevieria species. Flowers of 15 species obtained from herbarium specimens deposited at the Royal Botanic Gardens, Kew, the Botanical Garden Berlin-Dahlem and the Botanical Garden in Poznań were studied. Observations were conducted under a light and a scanning electron microscope. The study revealed significant differences between the outer and inner surfaces of anthers. All species have a well-defined endothecium of enlarged cells with a U-shaped or helical secondary wall thickening. The article includes descriptions and illustrations of several quantitative and qualitative features of anthers and filaments of some Sansevieria species. Our study indicates that stamen micromorphology may be taxonomically significant.
Źródło:
Steciana; 2017, 21, 2
1689-653X
Pojawia się w:
Steciana
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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