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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...
This article presents the results of a study on seed coat micromorphology and epicuticular structure of Ginkgo biloba cultivars. The micromorphology of the seed coat of 10 cultivars and one clone of female G. biloba were analysed. The taxa differed in the size and shape. Homogeneous epicuticular wax deposited in the form of wax tubules on the sarcotesta and sclerotesta surfaces. There were great differences...
The article presents results of research on the micromorphology and anatomy of leaves of Morus alba cultivars. Mature leaves from generative shoots were collected in the Cytadela Park in Poznań and from trees planted along streets in different towns in the Wielkopolska region. A light microscope and a scanning electron microscope were used for observations. There were significant differences between...
Micromorphological features of glumes, lemmas and paleas were examined under light and scanning electron microscopes in amphiploids of Aegilops geniculata, Ae. peregrina × Secale cereale and their parental species. The principal features include the size and shape of silica bodies, crown cells, prickles, macrohairs, stomata and the morphology of long cells. The SEM observations of glumes separate...
This paper presents the macromorphological and micromorphological characteristics of wood barley recorded in the Wielkopolska Lowland. On the basis of the collection of preserved specimens, the micromorphological features were examined under a scanning electron microscope (SEM) to assess their taxonomic value. The principal features include the size and shape of cork/silica cells, crown cells, prickles,...
The ovary surface ornamentation, pilosity and hair types were observed under SEM in Polish taxa of the genus Heracleum: H. sphondylium subsp. sphondylium and subsp. sibiricum, H. pubescens (ephemerophyte from two new localities), H. mantegazzianum and H. sosnowskyi. Diff erences of taxonomic signifi cance were found in the pilosity and ornamentation of the ovary surface. Pilosity of ovaries supports...
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