Daphne kosaninii (Thymelaeaceae) in the Balkan Peninsula.

Daphne kosaninii (Thymelaeaceae) was described from the Slavyanka Mt and Pirin Mts in SW Bulgaria. It is reported as also occurring in Kosovo, Greece and North Macedonia. The species is characterized by glabrous leaves and reddish-pink pubescent flowers. Two morphotypes can be recognized, one with patent-spreading perianth lobes and the other with erect perianth lobes. Daphne kosaninii f. kosaninii is defined as the typical form with patent-spreading perianth lobes; it occurs in Bulgaria, Greece and North Macedonia. Daphne sojakii described from Mt Vermion in north central Greece is synonymous with it. Daphne kosaninii f. cleistogama is the variant with erect perianth lobes held closely together so that the flowers appear cleistogamous. Daphne domini described from the area of Mt Orelek in SW Bulgaria is a synonym. This is the most common form in the mountains of northern Greece. The two forms are geographically separate, they never occur together in the same locality. Daphne velenovskyi described from Pirin Mts (SW Bulgaria) is considered synonymous with D. cneorum. [ABSTRACT FROM AUTHOR]