Zhu An-Hong, Song Zi-Kun, Wang Jun-Fang, Guan Hao-Wen, Ma Hai-Xia
Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Hainan Institute for Tropical Agricultural Resources, Haikou 571101, China.
School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, China.
Microorganisms. 2023 Dec 29;12(1):72. doi: 10.3390/microorganisms12010072.
Hypoxylaceous fungi are abundant in China, but their discovery and report are uneven in various provinces, with more fungi in Yunnan and Hainan and fewer fungi in Tibet. During the investigation of macro-fungi in Motuo county, Tibet Autonomous Region, we collected a number of xylarialean specimens. Six hypoxylaceous specimens growing on dead angiosperm were collected from the forests of Motuo county, and they were described and illustrated as two new species in based on a combination of morphological characters and molecular evidence. was characterized by its bistratal perithecia, purple-brown stromatal granules, citrine to rust KOH-extractable pigments, and light brown to brown ascospores ellipsoid-inequilateral with conspicuous coil-like ornamentation. was distinct from other species by having pulvinate and applanate stromata, surface vinaceous, with orange granules, orange KOH-extractable pigments, and brown ascospores with inconspicuous ornamentation. The multi-gene phylogenetic analyses (ITS-LSU-RPB2-TUB) supported the two new taxa as separate lineages in the genus . A key to all known taxa from China is provided.
炭角菌目真菌在中国分布广泛，但在各省的发现和报道情况不均衡，云南和海南的真菌种类较多，而西藏的真菌种类较少。在对西藏自治区墨脱县大型真菌的调查中，我们采集了一些炭角菌目标本。从墨脱县的森林中采集到6份生长在死的被子植物上的炭角菌标本，并基于形态特征和分子证据将它们描述并发表为两个新物种。[物种1]的特征是其具双层的子囊壳、紫褐色的子座颗粒、柠檬黄色至铁锈色的氢氧化钾可提取色素，以及浅褐色至褐色的椭圆形不等边的具明显螺旋状纹饰的子囊孢子。[物种2]与其他物种的区别在于其垫状和平展的子座、表面葡萄酒色、具橙色颗粒、橙色的氢氧化钾可提取色素，以及具不明显纹饰的褐色子囊孢子。多基因系统发育分析（ITS-LSU-RPB2-TUB）支持这两个新分类单元在该属中为独立的谱系。提供了中国所有已知[属名]分类单元的检索表。
