Manglietia pubipedunculata (Magnoliaceae), a new species from Yunnan, China

PLoS One. 2019 Mar 13;14(3):e0210254. doi: 10.1371/journal.pone.0210254. eCollection 2019.

Abstract

A new species, Manglietia pubipedunculata Q. W. Zeng & X. M. Hu (Magnoliaceae) is described and illustrated from Yunnan, China. In addition to macromorphological examination, we comparatively studied on micromorphology of leaf epidermis, leaf structure, and epidermal cell on the sclerotesta. This new species is similar to M. kwangtungensis in terms of having dense pubescence, however, their pubescence are quite different. Manglietia pubipedunculata has appressed, compressed, shorter and sparser pubescence consisting of single or two cells. Moreover, it differs from M. kwangtungensis by showing shorter and thicker peduncles, longer styles, basal carpels covered with sparsely brown appressed pubescence, and more ovules per carpel. Furthermore, the new species has thinner leaves, brown and rugged surfaces on sclerotesta, and the alveolate cell pattern consisting of pentagon or hexagon cells with papilla on secondary cell wall under the observation by SEM. The phylogenetic analysis from two nuclear PHYA and LEAFY and chloroplast trnH-psbA sequences of 11 taxa reveals that M. pubipedunculata is a distinct species.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • China
  • DNA, Plant / genetics*
  • Magnoliaceae / anatomy & histology*
  • Magnoliaceae / classification*
  • Magnoliaceae / genetics
  • Phylogeny
  • Plant Components, Aerial / anatomy & histology
  • Plant Components, Aerial / genetics
  • Plant Epidermis / ultrastructure
  • Sequence Analysis, DNA / methods

Substances

  • DNA, Plant

Grants and funding

This work was supported by the special fund of Forestry Public Welfare Industry Research of China (Grant Number 201404116) http://www.forestry.gov.cn/; the National Natural Science Foundation of China (Grant Number 30871960) http://www.nsfc.gov.cn/; the special fund of Forestry science and technology innovation of Guangdong Province (Grant Number 2014KJCX006, 2017KJCX023) http://lyj.gd.gov.cn/. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.