Contributions to the lichen flora of the Hengduan Mountains, China (3). Bryoria divergescens (Parmeliaceae), an overlooked species

摘要

Bryoria divergescens, which was previously known only from the 19th century holotype collection, has been rediscovered in various localities in Yunnan and also in Sichuan, southern China. This species should now be considered an endemic to the Hengduan Mountains region. It is characterized by its erect thallus, 3-8 cm tall, main branches 1-2 mm in diam., true lateral spinules, sparse pseudocyphellae, +/- ciliate apothecia, the presence of fumarprotocetraric and lobaric acids. It usually grows on branches of conifers.