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The nutlet morphology of 11 taxa of Mentha L. (M. pulegium, M. aquatica (SEM). The shape of all studied nutlets was broadly oblong or ovoid. Nutlet size ranged from 0.54 to 0.97 mm in length and from 0.37 to 0.66 mm in width. The smallest and biggest nutlets were found in M. × villoso-nervata and M. aquatica, respectively. The Mentha taxa studied can be divided into three groups, based on nut sculpturing type such as distinctly bireticulate, inconspicuously bireticulate and reticulate. This study has shown that some nutlet morphological characteristics can be utilised as additional diagnostic characteristics in delimitations of Mentha at the species and infraspecific levels.

The new species Stachys ketenoglui Kaynak, Daşkın & Yılmaz (Lamiaceae) is described and illustrated from south Anatolia, Turkey. It is closely related to S. cataonica and S. pumila, but differs from them by its longer petiolated basal leaves, longer calyx, pale pink and longer corollas. Notes are also provided on its ecology, geographical distribution and conservation status. In addition, SEM photos of pollen grains for S. ketenoglui, S. cataonica and S. pumila are provided.

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Stachys pseudobombycina Kaynak, Daşkın & Yılmaz sp. nov. (Lamiaceae) from south Anatolia, Turkey is described and illustrated. It belongs to section Olisia and appears to be close to S. bombycina. Its diagnostic characters, ecology and geographical distribution are described and compared with closely related species.