Fruit structure of 12 Turkish endemic <Emphasis Type="Italic">Tripleurospermum</Emphasis> Sch. Bip. (Asteraceae) taxa and its taxonomic implications |
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Authors: | Huseyin Inceer Murat Bal Talip Ceter Nur Munevver Pinar |
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Institution: | (1) Department of Biology, Faculty of Science, Karadeniz Technical University, 61080 Trabzon, Turkey;(2) Department of Biology, Faculty of Science and Art, Kastamonu University, 37100 Kastamonu, Turkey;(3) Department of Biology, Faculty of Science, Ankara University, 06100 Ankara, Turkey |
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Abstract: | This study concerns the evaluation of micromorphological and anatomical characters of fruit (achene-cypsela) in 12 Turkish
endemic Tripleurospermum taxa using multivariate analyses (cluster analysis, principal component analysis, one-way analysis of variance). Pericarp
in all taxa examined is mainly composed of several layers of parenchymatous and sclerenchymatous cells with one vascular bundle
in each rib. In the achene, the thickness and width of lateral and adaxial ribs with presence or absence of a slime envelope
have high taxonomic value for Tripleurospermum at interspecific levels. The slime envelope formation is also correlated with ploidy levels and habitats of some taxa in
Tripleurospermum. |
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