Patzkea

Patzkea is a genus of lichenized fungi in the family Teloschistaceae. These lichens are characterized by their crustose growth form and their apothecia, which are typically brightly colored, ranging from yellow to orange. They are commonly found growing on rocks, often in coastal or alpine environments.

The genus Patzkea is distinguished by a combination of morphological and chemical characteristics. Microscopically, the asci are of the Teloschistes-type, and the ascospores are polarilocular, meaning they have two cells separated by a thickened septum. Chemically, species in Patzkea produce anthraquinones, which contribute to their distinctive coloration.

Patzkea species play a role in primary succession, helping to break down rock surfaces and contribute to soil formation in harsh environments. The taxonomy of Patzkea has been revised in recent years based on molecular phylogenetic studies, leading to a better understanding of the relationships between species within the genus and with other members of the Teloschistaceae family. Identifications often require careful examination of both morphological and chemical features.