Browsing by Author "Aktas K."

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    Nutlet morphology and its taxonomic utility in Salvia (Lamiaceae: Mentheae) from Turkey
    (2009) Özkan M.; Aktas K.; Özdemir C.; Guerin G.
    The nutlet (mericarp) morphology of 12 Salvia L. (Lamiaceae: sub-family Nepetoideae: tribe Mentheae: sub-tribe Salviinae) taxa from Turkey, including five endemic taxa, was examined using scanning electron microscopy: Salvia bracteata Banks et Sol., S. cadmica Boiss., S. blepharoclaena Hedge et Hub.-Mor., S. cryptantha Montbret et Aucher ex Bentham, S. aethiopis L, S. ceratophylla L., S. candidissima Vahl subsp. candidissima., S. cyanescens Boiss et Bal., S. virgata Jacq, S. halophila Hedge, S. verticillata L. subsp. verticillata, S. verticillata L. subsp amasiaca (Freyn et Bornm.) Bornm. The mericarps examined exhibited variation in size, shape, colour, and surface sculpturing. Mericarp size ranged between 1.6-3.5 mm length and 1.0-2.9 mm width. Observed shapes included spherical, trigonous-prolate spheroidal and prolate spheroidal. Mericarp surface sculpturing revealed three distinct types: reticulate, foveate and verrucate. Our study supports further work across the genus.
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    Morphology, anatomy, palynology and seed micromorphology of turkish endemic verbascum exuberans hub.-mor. (scrophulariaceae); [Morfologia, anatomia, palinologia e micromorfologia de sementes da espécie endêmica turca verbascum exuberans hub.-mor. (scrophulariaceae)]
    (Sociedade Brasileira da Ciencia das Plantas Daninha, 2020) Aktas K.; Özdemir C.; Özdemir B.
    Verbascum L. is the largest genus of the family Scrophulariceae and includes several species are of medicinal importance. The high morphological diversity among the species of the genus Verbascum causes problems in the delimitation of the species. In this study, morphological, anatomical, palynological and seed properties of Verbascum exuberans were investigated. It is a local endemic restricted to the provinces of Manisa and Izmir in West Anatolia. In the root cross-section, the xylem elements occupy a considerable area. The upper part of the epidermis cells in the stem cross-section is covered a distinct cuticle layer. The main vein of the leaf is shapped as bicollateral bundle. Idioblasts were not observed in the epidermis of the leaves of V. exuberans. Seeds of V. exuberans are dark brown and oblong to prismatic and alveolate. Hilum is short and orbicular. The seed coat ornamentation is reticulate-rugose. Pollen grains usually radially symmetrical, isopolar, prolate, tricolpate. Tectum is reticulate. © 2020, Sociedade Brasileira da Ciencia das Plantas Daninha. All rights reserved.