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Morphology and molecules support the new monotypic genus Fenghwaia (Rhamnaceae) from south China
PhytoKeys ( IF 1.3 ) Pub Date : 2021-01-06 , DOI: 10.3897/phytokeys.171.57277 Gang-Tao Wang , Jiang-Ping Shu , Guo-Bin Jiang , Yu-Qiang Chen , Rui-Jiang Wang
PhytoKeys ( IF 1.3 ) Pub Date : 2021-01-06 , DOI: 10.3897/phytokeys.171.57277 Gang-Tao Wang , Jiang-Ping Shu , Guo-Bin Jiang , Yu-Qiang Chen , Rui-Jiang Wang
Fenghwaia, a new monotypic genus, along with the new species Fenghwaia gardeniicarpa, is described from Guangdong Province, China. The combined features of inferior ovary, cylindrical drupaceous fruits and orbicular and dorsiventrally-compressed seeds with an elongate and pronounced basal appendage make the new genus significantly different from other genera of the family. In addition, its pollen morphology also showed great similarity to other species of this stenopalynous family. The molecular phylogenetic analysis, based on nuclear ribosomal internal transcribed spacer (ITS) and plastid trnL-F intron spacer (trnL-F) DNA sequence data from the new genus and the other 375 species representing 58 genera of Rhamnaceae, indicates that Fenghwaia is nested within the ‘rhamnoid’ group and sister to the tribe Rhamneae and then both sister to the tribe Maesopsideae. A taxonomic classification key to the ‘rhamnoid’ group is provided, based on morphological characters. A global conservation assessment is also performed and classifies Fenghwaia gardeniicarpa as Near Threatened (NT).
更新日期：2021-01-06
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