A review of the genus Bulbothrix Hale: the species with medullary salazinic acid lacking vegetative propagules

Descriptions are presented for the seven known Bulbothrix (Parmeliaceae, Lichenized Fungi) species with salazinic acid in the medulla and without vegetative propagules. Bulbothrix continua, previously considered as a synonym of B. hypocraea, is recognized as independent species. The current delimitations are confirmed for B. enormis, B. hypocraea, B. meizospora, B. linteolocarpa, B. sensibilis, and B. setschwanensis. New characteriscs and range extensions are provided.