A new species of Centaurea sect. Pseudoseridia (Asteraceae) from north-eastern Turkey

Yüzbaşıoğlu, İbrahim Sırrı; Bona, Mehmet; Genç, İlker

doi:10.3897/phytokeys.52.5250

Cited by 10 publications

(6 citation statements)

References 19 publications

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“…The systematics of the genus Centaurea is problematic, and the sectional classification of Centaurea relies heavily on the morphology of the appendage of phillary and achenes (Garcia-Jacas et al, 2001). The taxonomic coplexity of Centaurea, especially in the Near East, has stirred much research (Duran and Duman, 2002;Türkoglu et al, 2003;Yüzbaşıoğlu et al, 2015). The status of species and infraspecific taxa included in Centaurea has been revised in several taxonomic treatments (Rahiminejad et al, 2010;Ranjbar and Negaresh, 2013;Negaresh and Rahiminejad, 2014).…”

Section: Introductionmentioning

confidence: 99%

Morphological, anatomical and cytological investigations on three taxa of Centaurea L. (Asteraceae) from Turkey

Taşar

Dogan²,

Kiran³

et al. 2018

Bangladesh J. Plant Taxon

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Morphological, anatomical and cytological features of three Turkish taxa of Centaurea L., viz. C. polypodiifolia Boiss. var. polypodiifolia, C. urvillei DC. subsp. urvillei and C. urvillei subsp. armata Wagenitz were investigated. Stem anatomy revealed the presence of a thick cuticle layer outside the stem, and epidermis with dense hairs was observed in the lower part. Investigation on leaf anatomy showed that different types of hairs on the outside of the leaf were very intense. Palisade parenchyma was observed below the upper and lower epidermis. In Centaurea polypodiifolia var. polypodiifolia, chromosome number was found to be 2n=16, while in C. urvillei subsp. urvillei and C. urvillei subsp. armata 2n=20. Total karyotype length of C. polypodiifolia var. polypodiifolia, C. urvillei subsp. urvillei and C. urvillei subsp. armata was 22.9 µm, 37.84 µm and 40.01 µm, respectively. Among the investigated taxa the karyotype asymmetry index was found lowest in C. urvillei subsp. armata. Satellite was detected in C. urvillei subsp. urvillei and subsp. armata, while it was absent in C. polypodiifolia Boiss. var. polypodiifolia.

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Section: Introductionmentioning

confidence: 99%

Morphological, anatomical and cytological investigations on three taxa of Centaurea L. (Asteraceae) from Turkey

Taşar

Dogan²,

Kiran³

et al. 2018

Bangladesh J. Plant Taxon

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“…Clear species delimitation is important to identify narrow endemics and outline their distribution (GARCIA-JACAS et al, 2000THOMAS et al, 2011;AYDIN et al, 2013;. In Turkey, Centaurea has one of the highest rates of endemism and species number has been increasing recently (ÖZHATAY and KÜLTÜR, 2006;ÖZHATAY et al, 2009ÖZHATAY et al, , 2011BANCHEVA et al, 2014;NEGARESH et al, 2015;YÜZBAŞIOĞLU et al, 2015;KÜLTÜR et al, 2016;UYSAL et al, , 2017BEHÇET et al, 2017;OREIZI et al, 2017). Previous studies on Centaurea did not sample Cynaroides and allies comprehensively and members of the section, especially Turkish endemics, were poorly known taxonomically and phylogenetically.…”

Section: Introductionmentioning

confidence: 99%

Morphological homoplasy and sectional polyphyly in Centaurea sect. Cynaroides and related taxa

Bona

Hughes

2022

Genetika

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Building natural classifications for genera with complex morphological variations such as Centaurea needs the support of molecular analysis and knowledge of morphological character diversification. Here we use parsimony and Bayesian analyses of nuclear ribosomal ITS sequences to gain insight into the sectional relationships and character evolution in Centaurea sections Chartolepis, Cheirolepis, Cynaroides, Grosheimia, Microlophus, Paraphysis, Phaeopappus, Plumosipappus, Pseudoserida, Pseudophaeopappus, Ptheracantha, Ptosimopappus, and Rhizocalathium, from Turkey. In particular, we increase sampling in Turkish endemic species of Centaurea sect. Cynaroides and related taxa. The new ITS sequences for 26 taxa from 48 locations are given. Sequences of 17 taxa are given here the first time. The phylogeny derived from ITS data provides a reasonably resolved and reasonably supported phylogenetic framework for the genus. Our analysis shows characters traditionally used in Centaurea taxonomy such as flower colour, appendage width, spine length, and pappus length evolved several times independently and show a lot of homoplasies. However, we can confirm the validity of character combinations for a reliable subgeneric classification of Centaurea.

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“…According to Uysal (2012), Centaurea has 195 taxa in Turkey. Since then, 17 new taxa and three new records from Turkey have been published (Yıldırımlı 2012, Köse and Alan 2013, Bancheva et al 2014, Duran et al 2014, Bancheva and Kaya 2015, Bona 2015a, 2016, Negaresh et al 2015, Yüzbaşıoğlu et al 2015, Kültür et al 2016, Pınar 2016, Uysal et al 2016, 2017, Uysal and Hamzaoğlu 2017, Behçet et al 2017, Armağan and Uysal 2018, Negaresh and Rahiminejad 2018, Yıldırımlı 2018, Şirin et al 2019, 2020, Hamzaoğlu and Koç 2020). Thus, this genus currently comprises 218 taxa in Turkey, 130 of which are endemic so the endemism rate is about 60% (Hamzaoğlu and Koç 2020).…”

Section: Introductionmentioning

confidence: 99%

Centaurea kirikkalensis (Asteraceae), a new species from Turkey

Özbek

2021

Nordic Journal of Botany

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A new species, Centaurea kirikkalensis from the Kırıkkale Province of Turkey is described and illustrated. It is morphologically similar to C. nallihanensis and C. drabifolia subsp. floccosa from which it differs mainly in the indumentum of stem and leaves, shape of involucre and appendages and pappus features. Detailed diagnostic characters, descriptions, taxonomic comments, ecology, IUCN conservation status, pollen and achene morphologies are given and the geographical distribution of the new species and its allied taxa is mapped.

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A new species of Centaurea sect. Pseudoseridia (Asteraceae) from north-eastern Turkey

Cited by 10 publications

References 19 publications

Morphological, anatomical and cytological investigations on three taxa of Centaurea L. (Asteraceae) from Turkey

Morphological, anatomical and cytological investigations on three taxa of Centaurea L. (Asteraceae) from Turkey

Morphological homoplasy and sectional polyphyly in Centaurea sect. Cynaroides and related taxa

Centaurea kirikkalensis (Asteraceae), a new species from Turkey

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