Abstract
Primulina wenii (Gesneriaceae) is described and illustrated here as a new species. Morphologically, this new species resembles P. juliae (Hance) Mich. Möller & A. Weber, but it is distinct from the latter by some obvious features in leaf blade, bract, indumentum, corolla, filament, stigma and pistil. Nuclear ribosomal internal transcribed spacer (ITS) region and plastid trnL-F intronspacer (trnL-F) DNA sequence data from the new species and its 22 relatives are used to determine the systematic position of the new species within Primulina. Molecular evidence suggests that P. wenii is strongly supported as a sister to a clade in which P. juliae is included. The conservation status of P. wenii is assessed as "Critically Endangered" (CR) according to IUCN Red List categories and criteria.Bangladesh J. Plant Taxon. 24(2): 173–182.
Highlights
A great number of new species of Primulina have been described since 2011 at present the number has rapidly reached more than 150 species in China (Möller et al, 2016)
The limestone areas of South-west and South China and North Vietnam are considered to be of the highest biodiversity and differentiation for Primulina (Gesneriaceae) (Wei et al, 2010; Wen et al, 2015)
Fujian province in East China cannot still be considered to have high biodiversity of Primulina because only three species were found in this area
Summary
A great number of new species of Primulina have been described since 2011 at present the number has rapidly reached more than 150 species in China (Möller et al, 2016). Fang & D.H. Qin (2004) and W. luochengensis Yan Liu & W.B. Xu (2010)) and all the species of Chiritopsis W.T. Wang (1981) were shifted to Primulina Hance (Li and Wang, 2007; Wang et al, 2011; Weber et al, 2011).
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