The Rediscovery of Some Taxa Thought to Have Been Extinct in Turkey

This paper reports the re-discovery of Barbarea auriculata Hausskn. ex Bornm. var. auriculata (Brassicaceae), Onobrychisnitida Boiss. (Fabaceae), Onosma discedens Hausskn. ex Bornm. (Boraginaceae), and Silene oligotricha Hub.-Mor. (Caryophyllaceae).All of these taxa had been listed as Extinct (EX), according to the World Conservation Union Red List Categories. This study providesthe re-descriptions of these taxa, presents field observations of these taxa, and suggests new IUCN categories.