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Stachys Istanbulensis (Lamiaceae) A New Species From Turkey: Evidence From Morphological, Micromorphological And Molecular Analysis, Özal Güner
Turkish Journal of Botany
Stachys species show high morphological diversity and their main diagnostic characteristics are calyx and corolla length, ratio of tooth to calyx, and verticillaster arrangement. This manuscript describes and provides detailed morphological, micromorphological and molecular information about a new species, Stachys istanbulensis Ö. Güner, and its close relatives. The new species resembles S. recta complex, but is distinguished by its procumbent flowering stems, shorter calyx and teeth, congested verticillasters, creamy yellow corolla and oblong-obovoid nutlets. Moreover, the periclinal surfaces of S. istanbulensis nutlets are usually wrinkled, while those of S. recta are smooth. In addition, nrITS DNA region sequences were used …
The Chromosomal Evolution And Analyses Of Turkish Cousinia Species, Tuna Uysal, Osman Tugay, Kuddi̇si̇ Ertuğrul, Meryem Bozkurt, Deni̇z Ulukuş, Hakki Demi̇relma
The Chromosomal Evolution And Analyses Of Turkish Cousinia Species, Tuna Uysal, Osman Tugay, Kuddi̇si̇ Ertuğrul, Meryem Bozkurt, Deni̇z Ulukuş, Hakki Demi̇relma
Turkish Journal of Botany
In this study, Turkish Cousinia species were examined in point of chromosome number and morphology. To our knowledge, this work is the first comprehensive chromosomal study regarding Turkish Cousinia as a whole, especially for endemics. As consistent with previous reports, the chromosome numbers are mostly 2n = 26 and have been determined also as 2n = 24 for only the members of Cynaroideae and Sphaerocephalae sections. An interesting result of this paper is that there is not any polyploid species in this taxonomic group and all of them are diploids. Concerning the chromosome evolution of the Cousinia species, we concluded …