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Issue: Vol. 650 No. 3: 29 May 2024
Type: Article
Published: 2024-05-29
DOI: 10.11646/phytotaxa.650.3.5
Page range: 249-261
Abstract views: 59
PDF downloaded: 0

Multiple evidence reveals a new species of Neocucurbitaria (Cucurbitariaceae, Pleosporales) from China

Engineering Research Center Edible and Medicinal Fungi, Ministry of Education, Jilin Agricultural University, Changchun 130118, China. School of Food Science and Engineering, Yangzhou University, Yangzhou 225127, China.
Engineering Research Center Edible and Medicinal Fungi, Ministry of Education, Jilin Agricultural University, Changchun 130118, China. Northeast Asian Specialty Germplasm Resources Innovation Centre, Jilin Agricultural University, Changchun 130118, China. Joint International Research Laboratory of Modern Agricultural Technology, Ministry of Education, Jilin Agricultural University, Changchun 130118, China.
Engineering Research Center Edible and Medicinal Fungi, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
Northeast Asian Specialty Germplasm Resources Innovation Centre, Jilin Agricultural University, Changchun 130118, China. Joint International Research Laboratory of Modern Agricultural Technology, Ministry of Education, Jilin Agricultural University, Changchun 130118, China.
Engineering Research Center Edible and Medicinal Fungi, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
1 new species asexual morph Neocucurbitaria phylogeny taxonomy Xanthoceras sorbifolium Fungi

Abstract

Xanthoceras sorbifolium (yellowhorn) is an endemic edible oil crop in China. A novel Neocucurbitaria species associated with dead stems of yellowhorn in Jilin Province (northeast China) is described and illustrated. It is characterized by stromata with 1–5 locules and a subhyaline pycnidial wall under the inner layer. Full morphological details and a comparison with closely related species are also provided. The new species differs from the closely related species N. ribicola, N. rhamni, N. rhamnicola and N. rhamnioides by its distinct conidiogenous cells and conidia. Phylogenetic analysis (maximum likelihood and Bayesian inference method) of combined ITS, LSU, rpb2, tef1-α and tub2 sequence data reveal that two strains of the fungus differ from all other species of Neocucurbitaria (Cucurbitariaceae). Therefore, we introduce N. subribicola as a new species, and this is the first report of the asexual morph of Neocucurbitaria in China

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