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Pyruszhaoxuanii (Rosaceae), A new pear species from Danxiashan Mountain, Guangdong, China
Xiao-Wei Yi1, Ying-Yu Wu1, Qiang Fan1
1State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Stress Biology, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China.
Abstract:
Pyruszhaoxuanii is described as a new species from Guangdong Province, China, within the genus Pyrus, specifically under P.subg.Pashia. Although it shares morphological similarities with P.calleryana, P.zhaoxuanii can be distinguished by its uniquely small, obovate, leathery leaves, which have an obtuse apex and short petioles. A phylogenetic analysis based on single nucleotide polymorphisms (SNPs) indicated that P.zhaoxuanii forms an independent branch within Pyrus and is categorized in the Oriental clade, P.subg.Pashia. Currently, this species has only been recorded in the Danxiashan National Nature Reserve. Considering its potential distribution and population size, we recommend classifying this species as Least Concern (LC) according to the IUCN Red List classifications and criteria.
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