Anatomical Properties of the Members of the Genus Grammosciadium (Grammosciadium DC., Apiaceae) in Turkey

The genus Grammosciadium is represented by 5 taxa from all over the world and 4 taxa in Turkey with resently published G. macrodon subsp. nezaketiae. Vegetative (root, stem, leaf sheath and leaf segment) and fruit anatomical characters of the members of the genus Grammosciadium were determined and the taxonomic importance of these characters were exhibited. All samples were collected from 22 different localities from Turkey. The one of the most important findings is presence of sclerenchymatic cells in phelloderm layers of the root sections. This character discriminates the genera Grammosciadium and Vinogradovia from the genus Caropodium. The another diagnostic character at species level is absence of sclerenchymatic cells in abaxial side of leaf sections in G. macrodon subsp. nezaketiae. Moreover, fruit anatomical sections include quite distinct traits. G. cornutum has 9 vascular bundles in sections of mericarps in constrast to all others which have 5 vascular bundles. Also G. macrodon subsp. nezaketiae has collenchymatic cells in vallecular regions of mericarp sections.