Zeng ZQ et al. (2020), Ascomycetes from the Qilian Mountains, China - ...

ECB-ART-49644

MycoKeys 2020 Aug 12;71:119-137. doi: 10.3897/mycokeys.71.55009.

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Ascomycetes from the Qilian Mountains, China - Hypocreales.

Zeng ZQ , Zheng HD , Wang XC , Wei SL , Zhuang WY .

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To investigate fungi from the Qilian Mountains in Gansu Province, ascomycetous specimens were collected and hypocrealean fungi were examined. Eighteen species belonging to six genera in the families Hypocreaceae and Nectriaceae were identified, including 11 species of Hypomyces and Trichoderma in Hypocreaceae and seven species of Nectria, Stylonectria, Thelonectria, and Thyronectria in Nectriaceae. Among them, Stylonectria qilianshanensis and Trichoderma gansuanum are new to science. DNA sequence analyses of combined ACL1, ITS, RPB2, and TEF1 regions confirmed their taxonomic placements. Morphological distinctions between the new species and their close relatives are discussed. Hypomyces tremellicola is reported for the first time in China.

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References [+] :

Chaverri, Delimitation of Neonectria and Cylindrocarpon (Nectriaceae, Hypocreales, Ascomycota) and related genera with Cylindrocarpon-like anamorphs. 2011, Pubmed, Echinobase

	Figure 1. BI tree generated based on the combined datasets of ACL1, ITS and RPB2 sequences of Stylonectria and its relatives. Supporting values showing at branches: BIPP (left) and MPBP (right). BIPP greater than 90% and MPBP greater than 70% are shown at the nodes.
	Figure 2. BI tree generated based on the combined datasets of RPB2 and TEF1 sequences of Trichoderma species. Supporting values showing at branches: BIPP (left) and MPBP (right). BIPP greater than 90% and MPBP greater than 70% are shown at the nodes.
	Figure 3. Stylonectria qilianshanensisa–c ascomata on natural substrate d–f median section through perithecium g–l ascus with ascospores m–q ascospores. From HMAS 255803. Scale bars: 1 mm (a–c); 50 μm (d–f); 10 μm (g–q).
	Figure 4. Trichoderma gansuanuma fresh stroma b dry stroma c stromatal surface d color of stroma after rehydration e median section through stromata f cortical tissue in section g subperithecial tissues in section h perithecia in section i ascus with ascospores j–m ascus with part-ascospores a from HMAS 279684, b–m from HMAS 279687. Scale bars: 1 cm (a); 1 mm (b–d); 50 μm (e–f); 10 μm (g–m).