Abstract
The limestone regions of Yunnan-Guangxi-Guizhou in southern and southwestern China are regarded as some of biodiversity’s hotspots for China’s Gesneriaceae where numerous rare new species of Primulina have been, or are being, described over the past two decades. Primulina flexusa, a new lithophytic species of Gesneriaceae from a limestone hill in a Karst area, from Guizhou, China, is described here with color photographs. It is similar to P. curvituba, but can be easily distinguished by a combination of characteristics, especially in the shape and length of its capsule. We found only one population with approximately 100 mature individuals at the type locality. This new species is provisionally assessed as Critically Endangered [CR C1] by using IUCN criteria.
Highlights
The vast majority of Primulina species have a straight funnelform-tubular to campanulate or cylindric corolla tube (Wang et al 1990, 1998; Li and Wang 2005)
Several living individuals were introduced into the nursery and gardens at the Gesneriad Conservation Center of China (GCCC), at the Guilin Botanical Garden, Chinese Academy of Sciences. Those introduced and cultivated plants blossomed in April 2018
Further literature study (e.g. Wang et al 1998; Li and Wang 2005; Wei et al 2010 and all recent published papers for new taxa of Primulina) and morphological comparison convinced us that it represents a new species to science, which is described and illustrated below
Summary
Academic editor: Eberhard Fischer | Received 12 June 2020 | Accepted 28 July 2020 | Published 4 September 2020 Citation: Peng T, Pan B, Maciejewski S, Wen F (2020) Primulina flexusa sp. nov. (Gesneriaceae) from Guizhou Province, China.
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