Eight species of Buellia s.l. containing xanthones are newly reported from China, including two species new to science (Buellia endoflavida and B. microareolata) and six records (B. concinna, B. mamillana, Stigmatochroma gerontoides, Tetramelas chloroleucus, T. geophilus and T. insignis) new to China. The genera Stigmatochroma and Tetramelas are also newly recorded from China. These species share the yellowish thallus with a UV+ yellow to orange reaction and can thus be easily separated from other buellioid taxa. Morphological, chemical and phylogenetic analyses were carried out to elucidate the placement of these species and to support the delimitation of the new taxa. Detailed descriptions and figures for the two new species are given and a key to all xanthone-containing buellioid species from China is provided.
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22 September 2020
Two new species and six new records of Buellia s.l. (lichenized Ascomycota, Caliciaceae) from China
Xin Yu Wang,
Li Juan Li,
Dong Liu,
Yan Yun Zhang,
An Cheng Yin,
Qiu Yi Zhong,
Shi Qiong Wang,
Li Song Wang
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The Bryologist
Vol. 123 • No. 3
Fall 2020
Vol. 123 • No. 3
Fall 2020
biodiversity
buellioid lichens
ITS
phylogeny
taxonomy
