Comparative morphological, fruit anatomical and micromorphological studies of two Trinia species

Background and Aims: The aim of the present study was to review and compare the morphological, micromorphological, and anatomical characteristics between Trinia scabra Boiss. & Noe and T. glauca (L.) Dumort. Methods: The fruit micromorphologies were examined using scanning electron microscopy. For anatomical studies, the Paraffin method was used. Transverse sections were cut using a rotary microtome and then were stained with safranin. Results: Expanded descriptions, phenologies, geographic distributions, and photos of the T. scabra and T. glauca are provided and the differences between the two species are discussed. The morphological, micromorphological, and anatomical characteristics of T. glauca and T. scabra are presented. Fruit anatomy is the best discriminating characteristic between the two species, which is entirely different in each. There is one vallecular vitta and there are two commissural vittae in T. scabra, but one to three vallecular vittae and one to two commissural vittae in T. glauca. The vittae are relatively large in T. scabra but small in T. glauca. There are no sclerenchyma cells toward the end of the ribs in T. scabra although they are found toward the end of the ribs in T. glauca. Also, the presence of T. leiogona C.A.Mey in Turkey has been reported by Grossgeim in Flora Kavkaza and confirmed our study.