Kahramanmaraş Sütçü İmam Üniversitesi Tarım ve Doğa Dergisi

Öz

In this study, micromorphology of labellum in 6 taxa belonging to 5 genera (Cephalanthera Rich., Dactylorhiza Neck. ex Nevski, Epipactis Zinn, Serapias L., Platanthera Rich.) was examined by Scanning Electron Microscopy (SEM) and the results were presented in comparative tables. While the samples were collected from the field, they were taken to 70% alcohol, some of them were dried according to the herbarium rules and diagnosed. The labellum samples extracted from alcohol were dissected under the stereomicroscope with scalpel and needles and placed directly into the steel apparatus of the SEM with double-sided adhesive tapes. The samples, from which alcohol was completely evaporated by waiting for one night, were examined directly with Scanning Electron Microscope (SEM) and labellum microphotographs were taken. According to the findings; It has been determined that Platanthera chlorantha labellum has an irregular cell, micro rugulate surface and dense ruminate morphlogy in all basal, lateral and median regions, and it is quite different from all other examined taxa with these features. Conical papillae formations have been found in different labellum regions of Cephalanthera epipactoides and Dactylorhiza romana. Epipactis and Serapias taxa with epicile and hypocile featured differ from each other with their epidermal cell shape, lateral wall features and surface features. As a result, labellum detailed surface morphlogy and spur features were found to be useful in distinguishing taxa.