Abstract
We describe and illustrate Sedum lipingense (Crassulaceae), a new species of stonecrop found in the limestone areas of SE Guizhou, China. Based on the presence of adaxially gibbous carpels and follicles, this taxon belongs to sect. Sedum S.H. Fu. The new species superficially resembles S. subtile Miquel and S. bulbiferum Makino but differs from these two taxa in its development of a basal leaf rosette during florescence. The nrDNA internal transcribed spacer (ITS) sequences also support the claim that this plant is a new species in the Sedum genus.
Highlights
Sedum Linnaeus is the largest genus in the Crassulaceae family, containing about 430 species, with the greatest diversity centering in eastern Asia (Thiede and Eggli 2007, Ito et al 2017a)
The new species was resolved as sister to S. bulbiferum (Bayesian posterior probabilities (PP) was 97) but turned out to be genetically distant from S. subtile
There were 50 nucleotides differ between S. lipingense and S. bulbiferum, suggesting the high variation compared to the closest relatives was remarkable
Summary
Sedum Linnaeus is the largest genus in the Crassulaceae family, containing about 430 species, with the greatest diversity centering in eastern Asia (Thiede and Eggli 2007, Ito et al 2017a). Keywords flora of Guizhou, karst, limestone flora, new taxon, Sedum lipingense There are 23 species within five genera of Crassulaceae found in the Guizhou Province (Li et al 1985). From 2005, a number of new species of Sedum were reported across mainland China, in areas includ-
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