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Issue: Vol. 376 No. 1: 15 November 2018
Type: Article
Published: 2018-11-15
DOI: 10.11646/phytotaxa.376.1.2
Page range: 17–26
Abstract views: 22
PDF downloaded: 1

A new species and a new record of Thyronectria (Nectriaceae, Hypocreales) in China

College of Forestry and Horticulture, Xinjiang Agricultural University, Urumqi, 830052, China
College of Forestry and Horticulture, Xinjiang Agricultural University, Urumqi, 830052, China
The Key Laboratory for Silviculture and Conservation of Ministry of Education, Beijing Forestry University, Beijing 100083, China
Department of Plant Pathology, University of California-Davis, Kearney Agricultural Research and Extension Center, Parlier, CA93648, USA
College of Forestry and Horticulture, Xinjiang Agricultural University, Urumqi, 830052, China
Morphology multigene analyses phylogeny taxonomy Thyronectria Xinjiang Fungi

Abstract

A new species, Thyronectria berberidis, is described and illustrated based on collections on Berberis heteropoda from the Ili area of Xinjiang Uygur Autonomous Region in China. Thyronectria berberidis is characterized by superficial, gregarious ascomata that become cupulate upon drying, with (1–6)7-septate, ellipsoidal to fusiform ascospores. In addition, T. lamyi is reported for the first time in China. The morphology characteristics of T. berberidis and T. lamyi were compared to those of close relatives. Their phylogenetic positions were confirmed by analyses of combined sequences of alpha-actin, the internal transcribed spacer, the large nuclear ribosomal RNA subunit, translation elongation factor 1-alpha and beta-tubulin. This is the first record that Thyronectria is established in the B. heteropoda in China.