Achene morphology of the genus Cota J.Gay (Asteraceae) from Turkey and its taxonomic significance

Abstract

The genus Cota J.Gay (Asteraceae, Anthemideae) consists of 49 species (including 63 taxa) worldwide. Cota species are mainly distributed in Europe (except north of Europe), North Africa, Caucasia, and Central Asia (Davis and Hedge, 1975; Oberprieler et al., 2007). In Turkey it is represented by 15 species and 22 taxa, of which 9 are endemic. The members of Cota are especially widespread in the Mediterranean and Irano-Turanian phytogeographic regions of Turkey (Özbek et al., 2011; Özbek, 2012). Cota was earlier classified as a section in the genus Anthemis L. in the Flora of Turkey (Grierson and Yavin, 1975). In this account, Anthemis s.l. was divided into three sections, namely sect. Anthemis (29 species), sect. Maruta (Cass.) Griseb. (6 species), and sect. Cota (J.Gay) Rupr. (15 species). After the generic and infrageneric concepts of Anthemis were changed, Anthemis sect. Cota was accepted as a genus,

Systematic importance of achene macro‐micromorphological characteristics in selected species of the genera Crupina, Jurinea, and Klasea (Asteraceae) from Turkey

“…The importance of seed and fruit morphology in plant systematics and taxonomy has been emphasized in several studies (Dinç, Doğu, Bilgili, & Duran, 2009; Doğu, Dinç, & Pınar, 2012; Karaismailoğlu, 2015; Luqman et al, 2019; Rashid et al, 2018). Microstructural characteristics are useful in particular for taxonomically complicated families (Bona, 2013; Karaismailoğlu, 2019; Özbek, Özbek, & Vural, 2018; Ullah et al, 2019). Analysis of micromorphological characteristics can help to acquire useful data for building an evolutionary approach among different taxonomic units (Bona, 2015; Luqman et al, 2019; Özüdoğru, Akaydın, Erik, & Mummenhoff, 2016; Rashid et al, 2018; Ullah et al, 2019).…”

“…Macromorphological achene features of the studied species are traditionally used as diagnostic characteristics (Wagenitz, 1975). Several studies showed that achene micromorphology is also useful for identification and taxonomic delimitation in different genera in Asteraceae (Bona, 2014; Candan et al, 2016; Özbek et al, 2018; Rakizadeh, Attar, & Sotoodeh, 2019; Şirin, Ertuğrul, & Uysal, 2017). The present study aims to provide relevant characteristics of the achene macro‐micromorphology and the data useful for solving taxonomic problems through scanning electron microscopy (SEM) in the studied genera.…”

Anatomical, Palynological and Achene Micromorphological Characteristics of Cousinia boissieri Buhse (Sect. Leiocaules, Asteraceae) Growing in Turkey

“…In one study made about achene micromorhology of asteraceae, [41] recognised that achene coat ornamentation genus of Cota has reticulate-striate. In this work, achenes also was found reticulate-striate.…”

Pappus and fruit micromorphology and fruit anatomy in some members of the tribe Cardueae (Asteraceae) from Turkey with their contributions to systematics

“…The micromorphological characteristics of different plant structures have always been used as complementary tools in recent taxonomical investigations, in addition to the morphological features (Abid & Qaiser, 2009; Barthlott, 1981; Zhu, Qin, & Shih, 2006). The macro and micromorphological characteristics of fruit and pappus have been widely used in systematic evolutionary studies as well as to identify the species at the various taxonomic levels in many flowering plant groups including several tribes of Asteraceae; Anthemideae, Cichorieae, Inuleae, Senecioneae, and Mutisieae (Inceer, Bal, Ceter, & Pinar, 2012; Zhang, Boufford, & Sun, 2013; Karanović, Zorić, Zlatković, Boža, & Luković, 2016; Aksu Kalmuk, Inceer, & Imamoglu, 2018; Özbek, Özbek, & Vural, 2018), and in the tribe Cardueae (Dittrich, 1985; Gavrilović et al, 2020; Ozcan, 2017, 2018; Ozcan & Akinci, 2019). Fruit characteristics such as surface sculpturing are thought to be less influenced by the pressures of environmental conditions than other morphological traits (Barthlott, 1981).…”