Türkiye Stachys L. Cinsi Ambleia Bentham Seksiyonu Türleri Üzerine Karşılaştırmalı Morfolojik, Anatomik ve Palinolojik Çalışmalar

Bu çal›flmada, tip lokalitelerinden toplanan örnekler üzerinde, Türkiye Stachys L. cinsi Ambleia Bentham seksiyonu türleri üzerine karfl›laflt›rmal› morfolojik, anatomik ve palinolojik çal›flmalar gerçeklefltirilmifltir. Bu türler, oldukça lokal endemik olan Stachys cydni Kotschy ex Gemici & Leblebici ve S. yildirimlii M. Dinç’dir. Morfolojik olarak tüylerin mikromorfolojik özellikleri çal›fl›lm›flt›r. Çal›flma sonuçlar›na göre, tüy morfolojisinin taksonomik de¤eri oldu¤u gözükmektedir. Gövde ve yapraklardan al›nan enine kesitler ile yapraklardan al›nan yüzeysel kesitler üzerine yap›lan anatomik çal›flmalar sunulmufltur. Bu iki tür üzerinde yap›lan anatomik karfl›laflt›rmaya göre, gövdedeki öz bölgesinin yap›s›, yapraklardaki kutikula kal›nl›klar› ve stomalar›n da¤›l›m› türleri ay›r›c› özelliklerdir. Polen taneleri ile yap›lan taramal› elektron mikroskobu çal›flmalar›, ekzin süslerinin bu iki türde aç›kça farkl› oldu¤unu göstermektedir. S. yildirimlii polenleri retipilat ekzin süslerine sahip iken, S. cydni polenleri retikulat ekzin süslerine sahiptir.

Comparative Morphological, Anatomical, and Palynological Studies on the Genus Stachys L. sect. Ambleia Bentham (Lamiaceae) Species in Turkey

In this study, comparative morphological, anatomical and palynological studies of Stachys L. sect. Ambleia Bentham species (Lamiaceae) in Turkey are carried out on the plants collected from their type localities. These species are Stachys cydni Kotschy ex Gemici & Leblebici and S. yildirimlii M. Dinç, which are highly local endemics. Morphologically, micromorphological features of the trichomes are studied. Trichome morphology appears to have a taxonomic value with respect to the results. The anatomical studies on cross-sections of stems, leaves, and surface sections of leaves are presented. According to the anatomical comparison between the 2 species, the pith structure of the stems, the cuticle thickness of the leaves, and stomatal distribution on the leaves are the distinguishing features of the species. Scanning electron microscope studies on the pollen grains show that exine ornamentation is clearly different in the 2 species. Whereas the pollen grains of S. yildirimlii have a retipilate exine ornamentation, those of S. cydni have a reticulate ornamentation.

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