Ligularia dalaolingensis sp. nov. (Asteraceae–Senecioneae) from central China

Abstract

Ligularia dalaolingensis, a new species from Hubei and Hunan, China, is described and illustrated. It belongs to L. sect. Ligularia ser. Speciosae on the basis of its palmate leaf venation, racemose synflorescence and pappus which is slightly shorter than the tube of the tubular corolla. In the series, its closest relatives are assumed to be L. fischeri and L. stenocephala. From L. fischeri, L. dalaolingensis is readily distinguished by smaller basal leaves, shorter synflorescence, narrower involucres and fewer phyllaries and florets; from L. stenocephala, L. dalaolingensis differs by smaller basal leaves, shorter synflorescence as well as broader bracts. A diagnostic key to Chinese species of L. ser. Speciosae with broadly ovate, ovate or ovate‐lanceolate bracts is provided.

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“…The center of species diversity of the genus lies in the eastern Himalayas and the Hengduan Mountains region in southwestern China (Liu et al 1994, 2006, Liu and Illarionova 2011). Contributions to the taxonomy of the genus at the species level have continuously been made during the last decade (Fei et al 2019). Most recently, a phylogenetic study recircumscribed L. sect.…”