Byssoloma brunneodiscum is a species of foliicolous (leaf-dwelling) lichen in the family Pilocarpaceae. Found in China, it was formally described as a new species in 2020 by Wei-Cheng Wang and Jiang-Chun Wei. The type specimen was collected by Wang in the Mingfeng Valley of Jianfeng Ridge (Ledong County, Hainan) at an altitude of 960 m (3,150 ft). It is only known to occur at high-altitude rainforests on Hainan Island, where it grows sparsely on leaf surfaces in the damp understorey. The specific epithet brunneodiscum refers to the brown discs that are characteristic of the apothecia of this species. The lichen makes 2,5,7-trichloro-3-O-methylnorlichexanthone, a secondary chemical that is detectable using thin-layer chromatography. Byssoloma annuum is similar in appearance and chemistry, but is distinguished from B. brunneodiscum by its orange-yellow apothecia and colourless hypothecium.[1]
| Byssoloma brunneodiscum | |
|---|---|
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Lecanoromycetes |
| Order: | Lecanorales |
| Family: | Pilocarpaceae |
| Genus: | Byssoloma |
| Species: | B. brunneodiscum
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| Binomial name | |
| Byssoloma brunneodiscum W.C.Wang & J.C.Wei (2020)
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References
edit- ^ Wang, Wei-Cheng; van den Boom, Pieter; Sangvichien, Ek; Wei, Jiang-Chun (2020). "A molecular study of the lichen genus Byssoloma Trevisan (Pilocarpaceae) with descriptions of three new species from China". The Lichenologist. 52 (5): 387–396. doi:10.1017/s0024282920000390. S2CID 229049250.
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