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Morphological and Molecular Phylogenetic Data Reveal a New Species of Primula (Primulaceae) from Hunan, China

Yuan XuCollege of Life Sciences, South China Agricultural University, Guangzhou, ChinaXun‐Lin YuCollege of Forestry, Central South University of Forestry and Technology, Changsha, ChinaChi‐Ming HuKey Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, the Chinese Academy of Sciences, Guangzhou, ChinaGang HaoCollege of Life Sciences, South China Agricultural University, Guangzhou, China

2016en

ABI

Annotatsiya

A new species of Primulaceae, Primula undulifolia, is described from the hilly area of Hunan province in south-central China. Its morphology and distributional range suggest that it is allied to P. kwangtungensis, both adapted to subtropical climate, having contiguous distribution and similar habitat, growing on shady and moist cliffs. Petioles, scapes and pedicels of them are densely covered with rusty multicellular hairs, but the new species can be easily distinguished by its smaller flowers and narrowly oblong leaves with undulate margins. Molecular phylogenetic analysis based on four DNA markers (ITS, matK, trnL-F and rps16) confirmed the new species as an independent lineage and constitutes a main clade together with P. kwangtungensis, P. kweichouensis, P. wangii and P. hunanensis of Primula sect. Carolinella.

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DOI: 10.1371/journal.pone.0161172

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