Two new species of Seseli (Umbelliferae) from Turkey
Two species, Seseli paphlagonicum and S. phrygium, are described and illustrated from Northern (Ilgaz Daği) and Central (Sakarya valley) Turkey, respectively. Both species belong to Seseli sect. Seseli. They are limestone chasmophytes. The differences and distribution in Turkey of the species of Seseli, closely related to S. gummiferum and S. petraeum, are discussed.