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Issue: Vol. 350 No. 3: 23 May 2018
Type: Article
Published: 2018-05-23
DOI: 10.11646/phytotaxa.350.3.4
Page range: 247–258
Abstract views: 40
PDF downloaded: 635

Two new natural hybrids in the genus Pleione (Orchidaceae) from China

Key Laboratory of Economic Plants and Biotechnology, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan, China. Yunnan Key Laboratory for Wild Plant Resources, Kunming, Yunnan, China. University of Chinese Academy of Sciences, Beijing, China.
Key Laboratory of Economic Plants and Biotechnology, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan, China. Yunnan Key Laboratory for Wild Plant Resources, Kunming, Yunnan, China.
Key Laboratory of Economic Plants and Biotechnology, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan, China. Yunnan Key Laboratory for Wild Plant Resources, Kunming, Yunnan, China. University of Chinese Academy of Sciences, Beijing, China.
Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan, China. University of Chinese Academy of Sciences, Beijing, China.
Key Laboratory of Economic Plants and Biotechnology, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan, China. Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan, China.
Coelogyninae lip callus natural hybridization Pleione phylogenetics sympatric species Monocots

Abstract

Several species in the genus Pleione (Orchidaceae) have same or overlapping geographical distribution in China. In this study, two new natural hybrids, Pleione × baoshanensis and Pleione × maoershanensis, were described and illustrated. The parentage for these two hybrids was confirmed using molecular data from ITS of the nuclear ribosomal, trnT-trnL spacer and trnL-trnF region (trnL intron and trnL-trnF spacer) of the plastid DNA. Pleione × baoshanensis is intermediate between P. albiflora and P. yunnanensis, and characterized by its erose lamellae on the lip. Meanwhile, Pleione × maoershanensis is intermediate between P. hookeriana (P. chunii) and P. pleionoides, and characterized by its deep lacerate lamellae on the lip. For the individuals tested, molecular data suggest that P. albiflora is the maternal parent of Pleione × baoshanensis, and P. hookeriana (P. chunii) is the maternal parent of Pleione × maoershanensis. The history and taxonomic status of P. chunii is also discussed.