Lecania sipmanii (Lecanorales, Bacidiaceae), an epiphytic lichen from Syria is described as a species new to science and illustrated. The new species belongs to the L. polycycla group and is mainly characterized by a small, areolate thallus, spores strongly constricted at the septum, paraplectenchymatic excipulum cells and hairs in the thalline margin of the apothecia. It was collected on dust-impregned bark of Salix and Populas species.
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