Crataegus davisii Browicz is a later homonym of C. davisii Sarg., and the species has been renamed as Crataegus petrodavisii Donmez, nom. nov., following its acceptance as a valid species. Crataegus x yosgatica K.I.Christ. ...

Polygala turcica Donmez & Ugurlu (Polygalaceae) is described and illustrated as a new species from Kars province in E Turkey. It is similar to P. peshmenii Eren & al., but is clearly isolated from the other species of ...

Crataegus species (Rosaceae), known as "Howthorn" have found special medicinal use for the treatment of mild heart diseases. This work aims to measure the antioxidant capacities of various Crataegus species growing in ...