A comprehensive checklist of the deciduous photinia genus Pourthiaea (Maleae, Rosaceae), with emphasis on their validity and typification

Yi-Lei Lou; Ze-Tao Jin; Dai-Kun Ma; Bin-Bin Liu

doi:10.3897/phytokeys.202.85822

A comprehensive checklist of the deciduous photinia genus Pourthiaea (Maleae, Rosaceae), with emphasis on their validity and typification

PhytoKeys. 2022 Jul 19:202:1-33. doi: 10.3897/phytokeys.202.85822. eCollection 2022.

Authors

Yi-Lei Lou^{1

2}, Ze-Tao Jin³, Dai-Kun Ma⁴, Bin-Bin Liu⁴

Affiliations

¹ College of Landscape Architecture, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China Zhejiang Agriculture and Forestry University Hangzhou China.
² College of Landscape Architecture, Beijing Forestry University, Beijing 100083, China Beijing Forestry University Beijing China.
³ Centre of Pear Engineering Technology Research, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China Nanjing Agricultural University Nanjing China.
⁴ State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China Institute of Botany, Chinese Academy of Sciences Beijing China.

Abstract

Due to the complicated evolutionary history in Pourthiaea, ninety-seven taxa have been described since 1784, and ninety-one of them are validly published taxa, five are naked names, and one is an invalid name. After a comprehensive and critical evaluation, 213 names have been published, including new combinations, new status, and new names; this may be due to the controversial taxonomic position of Pourthiaea in the apple tribe, Maleae. We herewith provide a taxonomic checklist of Pourthiaea for further taxonomic and evolutionary studies. We also lectotypify two taxa: Photiniaamphidoxavar.stylosa and P.glabravar.fokienensis.

Keywords: Lectotype; Photinia; Stranvaesia; nomenclature; taxonomy; typification.

Yi-Lei Lou, Ze-Tao Jin, Dai-Kun Ma, Bin-Bin Liu.