Lophiolepis (=Cirsium Epitrachys seksiyonu) cinsine ait Türkiye’den yeni bir melez kaydı (Asteraceae, Carduinae)

Abstract

Lophiolepis Cass., is newly separated from the genus Cirsium Miller in the light of recent molecular studies, belonging to the tribe Cardueae of the family Asteraceae (subtribe Carduinae). It has a high affinity to form interspecific and intersubspecific hybrids under certain circumstances. In the present study, one hybrid combination, Lophiolepis x trifurca (Petr.) Bureš, Del Guacchio, Iamonico & P.Caputo which was previously described as Cirsium x trifurcum Petrak by Petrak in 1914 from Bakuriani (Georgia) is newly recorded for Turkish Flora. The hybrid specimens have intermediate characters with parental species; Lophiolepis kosmelii (Adams) Bureš, Del Guacchio, Iamonico & P.Caputo and L. caucasica (Adams) Bureš, Del Guacchio, Iamonico & P.Caputo. Plant samples including parental species were collected from Şavşat district of Artvin province in sympatric populations. These specimens were carefully examined and compared with the putative parents, and morphological character measurements of hybrid plants, as well as parental species were carried out. Natural habits of the samples were photographed, drawings of cauline leaves were supplied using stereomicroscope, leaf micromorphological characters were determined and anatomical characteristics were compared with parents, in detail. In conclusion, intermediate morphological characteristics between L. x trifurca and its parents were determined in terms of features such as cauline leaves, phyllaries, capitula and corolla. It has spines in adaxial sides, uniseriate multicellular tomentose trichomes in abaxial ones. Cuticle has striate appearance near to the stomata/ trichome bases in abaxial surface and scale/granules are shown in adaxial parts. This taxon has amphistomatic leaves and dorsiventral mesophyll as in the parental species.