Morphological and Chorological Contributions to the Genus Cionura (Apocynaceae: Asclepiadoideae) from Türkiye


Güven S., Sarıkaya E.

7th Symposium on EuroAsian Biodiversity (SEAB) - 2024, Erzurum, Türkiye, 22 - 24 Ağustos 2024, ss.1

  • Yayın Türü: Bildiri / Özet Bildiri
  • Basıldığı Şehir: Erzurum
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.1
  • Recep Tayyip Erdoğan Üniversitesi Adresli: Evet

Özet

Cionura is a monotypic genus represented by C. erecta which has a wide range of distribution from southeastern Europe to the Mediterranean regions and Afghanistan. The aim of the present study is to re-evaluate the morphological features and the distribution of C. erecta in Türkiye. Morphological examinations were performed on the samples kept in national/international herbaria and the specimens newly collected from natural habitats of the genus. An extended description supported by detailed morphological photographs, and a current distribution map for C. erecta in Türkiye were created. C. erecta is characterized by shrub or semi-shrub twining stems, simple, opposite, ovate, and basally cordate or subcordate leaves, white or cream-yellow flowers consisting of a typical gynostegial, parted corona, and gynostegium with apically bifid stigma. In this study, C. erecta was examined morphologically in detail, and its description was contributed. This research also supplied 147 new locality records for C. erecta in addition to its knowledge in the Flora of Türkiye, and the number of known localities from our country for the taxon was revised as 169. It is determined that C. erecta has a wide distribution in Türkiye, excluding northeastern Anatolia, in various habitats such as beaches, Quercus sp. and Pinus sp. forest clearings, maquis shrublands, roadsides, rocky and stony slopes, stream beds, and lakesides from sea level to higher regions up to 2500 m.

 

Keywords: Cionura erecta, chorology, monotypic, morphology.