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    Comparative anatomical and micromorphological studies on Teucrium creticum and Teucrium orientale var. orientale (T. sect. Teucrium, Lamiaceae)
    (WILEY-BLACKWELL PUBLISHING, INC, 2009) Dinc, Muhittin; Dogu, Sueleyman; Bilgili, Bilgehan; Duran, Ahmet
    Teucrium creticum L. and T. orientale L. var. orientale are two related taxa in Teucrium sect. Teucrium. In this study, the value of anatomical and micromorphological characters for distinguishing between these two taxa is analysed. Transverse sections of the stem, as well as both transverse and surface sections of the leaves were examined anatomically. According to the data obtained, collenchyma and sclerenchyma do grow more in T. creticum than in T. orientale var. orientale. The leaves of T. creticum are hypostomatic and have a characteristic hypodermis, which is under the upper epidermis, as well as abundant spherocrystals in the upper epidermis. The leaves of T. orientale var. orientale are amphistomatic, yet no spherocristals exists in epidermal cells and the hypodermis is absent. The results obtained from studies carried out under scanning electron microscope (SEM) shows that the nutlet micromorphology varies between the two taxa. In both taxa, the nutlet surfaces are reticulate and glandular. Eglandular hairs do occur. However, in T. orientale var. orientale, 20-60 mu m long eglandular hairs with scabrid surface occur only along the margins of the nutlets, whereas the 3/4 dorsal sides of the nutlets in T. creticum are all covered with 90-500 mu m long, smooth-surfaced hairs. Additionally, while the glandular hairs on the nutlets of T. creticum are subsessile, those on the nutlets of T. orientale var. orientale are capitate and distinctly stalked.
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    MICROMORPHOLOGICAL STUDIES OF LALLEMANTIA L. (LAMIACEAE) SPECIES GROWING IN TURKEY
    (POLSKA AKAD NAUK, 2009) Dinc, Muhittin; Pinar, Nur Muenevver; Dogu, Sueleyman; Yildirimli, Sinasi
    Micromorphological features related to the pollen, nutlets and trichomes of Lallemantia species growing in Turkey were investigated mainly by scanning electron microscopy. Lallemantia pollen shares morphological features with subfamily Nepetoideae (tribe Mentheae, subtribe Nepetinae) pollen. However, the fine details are characteristic enough to differentiate the pollen between species. The exine is microreticulate in L. peltata and L. iberica, and reticulate-foveolate in L. canescens. Similarly. nutlet features are similar in general, but there are striking differences in surface details between species. Nutlets are black and oblong-triangular with V-shaped areoles. The surface is verrucate in L. iberica and L. canescens, and verrucate-rugulate in L. peltata. The warts are regular and separated in L. peltata, irregular and separated in L. iberica, and irregular and separated or sometimes associated in 2 to 4 groups in L. canescens. Two types of trichome, capitate and acicular. are present on the steins, leaves, calyx and bracts. The results suggest that although the distribution and micromorphology of trichomes has no taxonomic value, some pollen and nutlet micromorphological characters have the potential to serve as phylogenetic markers at the species level in the genus Lallemantia. However, pollen characteristics show no correlation with the nutlet characteristics.
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    Muscari vuralii sp nov (Liliaceae/Hyacinthaceae) from south Anatolia, Turkey
    (WILEY-BLACKWELL PUBLISHING, INC, 2009) Dogu, Sueleyman; Bagci, Yavuz
    Muscari vuralii Y. Bagci & Dogu sp. nov. (Liliaceae/Hyacinthaceae) from the Karaman (C4 Karaman-Turkey) is described and illustrated. It is closely related to M. coeleste Fomin and M. macbeathianum Kit Tan. Diagnostic morphological characters are discussed and a key to related Muscari species in Turkey is given. The geographical distribution of the new species is mapped. Notes are also presented on its ecology, biogeography and conservation status.
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    Rhaponticoides aytachii sp nov (Asteraceae) from south Anatolia, Turkey
    (WILEY-BLACKWELL PUBLISHING, INC, 2009) Dogu, Sueleyman; Bagci, Yavuz; Dinc, Muhittin
    A new species of Rhaponticoides Vaill., Rhaponticoides aytachii Y. Baci, Dou & Dinc sp. nov. collected by the authors from south Anatolia, is described and illustrated. The new species is restricted to deprived Quercus forest openness around Dumlugoze-Sariveliler (C4 Karaman). Diagnostic morphological characters from R. amplifolia (Boiss. & Heldr.) M.V. Agab. & Greuter are discussed. The ecology, biogeography and conservation status of the new species is also presented.