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MycoKeys. 2019 Jan 29;(45):93-109. doi: 10.3897/mycokeys.45.29374. eCollection 2019.

New species and records of Pyxine (Caliciaceae) in China.

Author information

1
Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), Zürcherstrasse 111, CH-8903 Birmensdorf, Zurich, Switzerland Kunming Institute of Botany, Chinese Academy of Sciences Kunming China.
2
University of Bern, Hochschulstrasse 6, 3012 Bern, Switzerland Swiss Federal Institute for Forest, Snow and Landscape Research Zurich Switzerland.
3
Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Heilongtan, Kunming, Yunnan 650201, China University of Bern Bern Switzerland.
4
Korean Lichen Research Institute (KoLRI), Sunchon National University, 255 Jungang-Ro, Suncheon, Korea Sunchon National University Suncheon Korea, South.

Abstract

In this study, the diversity of Pyxine Fr. in China was assessed based on morphological and chemical traits and molecular data are inferred from ITS and mtSSU sequences. Nineteen species were recognised, including three that are new to science (i.e. P.flavicans M. X. Yang & Li S. Wang, P.hengduanensis M. X. Yang & Li S. Wang and P.yunnanensis M. X. Yang & Li S. Wang) and three records new to China were found (i.e. P.cognata Stirt., P.himalayensis Awas. and P.minuta Vain.). Pyxineyunnanensis is diagnosed by the small size of the apothecia, a white medulla of the stipe and the presence of lichexanthone. Pyxineflavicans is characterised by broad lobes, a pale yellow medulla of the stipe and the presence of atranorin. Pyxinehengduanensis can be distinguished by its pale yellow medulla, marginal labriform soralia and the absence of atranorin. Detailed descriptions of each new species are presented, along with a key to the known species of Pyxine in China.

KEYWORDS:

China; lichenised fungi; new species; phylogeny

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