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    Comparative anatomical properties of some Epidendroideae and Orchidoideae species distributed in NE Turkey
    (Springer Wien, 2019) Senel, Gulcan; Akbulut, Mustafa Kemal; Seker, Senay Sungu
    In this research, anatomical, leaf micromorphological features of the samples belonging to 25 taxa (Anacamptis Rich., Cephalanthera Rich., Dactylorhiza Necker ex Nevski, Gymnadenia R.Br., Himantoglossum Spreng., Limodorum Boehm., Ophrys L., Orchis L., Platanthera Rich., Serapias L., Spiranthes Rich. and Steveniella Schltr.) spread in the Karadeniz Region have been evaluated comparatively. In anatomical studies, the transverse section from root, stem and leaf, and surface section from leaves of plants were examined. In addition, micromorphological properties of leaf were determined by electron microscopy. Morphometrical analyses were carried out using the anatomical and leaf micromophological characters of each taxa. The data matrices were obtained by examining the results of at least three samples collected from different localities. The data were evaluated using Statistical Package for the Social Sciences (SPSS) and PAleontological STatistics (PAST) statistical programs with PCA, linear discriminant analysis (LDA), and unweighted pair group method with arithmetic mean analysis. Anatomical characteristics of plants such as root epidermis cell length, cortex diameter and pith cell diameter, leaf upper epidermis length-width and bulliform cell length-width were determined to be important characteristics. It was concluded that these characters are especially important in grouping at the genus level.
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    Öğe
    Comparison of labellum and spur papillae in Dactylorhiza (Orchidaceae) from Anatolia
    (Soc Botanica Sao Paulo, 2020) Akbulut, Mustafa Kemal; Senel, Gulcan; Seker, Senay Sungu
    This study aimed to compare the labellum and spur papillae and also the papillae types as taxonomic characters to circumscribe taxa of the genus Dactylorhiza Necker ex Nevski distributed in Anatolia (Turkey). Plant samples were collected from different regions of Anatolia, especially the Black Sea Region. Ten species were examined using light and scanning electron microscopy. The papillae and epidermis cell size of the taxa were measured and statistically compared. The papillae of the labellum were morphologically similar among the species, except for the surface striation. Spur papillae are different from the labellum papillae. Dactylorhiza characteristics such as labellum papillae shape and surface ornamentation, spur papillae shape, spur shape, and spur/ovary rate are relevant for the taxonomy of the genus.