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| Campylotropis xinfeniae in Jiang, Xin-Hui Li, Xiong Li, Bo Xu. 2024. |
Abstract
Campylotropis xinfeniae, a new species from the dry-hot valley of the Jinsha River in the Yunnan province, China, is described and illustrated. It is morphologically similar to C. wilsonii and C. brevifolia in having glabrescent old branches, absent stipels, 3-foliolate leaves, and adaxially puberulent leaflets, while it differs from the latter two in having often paniculate inflorescences, obviously white standard, not incurved sickle keel, larger narrowly oblique legumes, and longer legume beak. The complete chloroplast genome of this new species is 149,073 bp in length and exhibits a typical quadripartite structure. Phylogenetic analyses based on the complete chloroplast genome also supported C. xinfeniae as a new species located at the basal distinct clade of the genus Campylotropis, clearly separated from the remaining members of the genus and its allied genera. A conservation assessment of data deficient (DD) is recommended for the new species without extensive exploring of similar habitats according to the IUCN Categories and Criteria.
Keywords: Campylotropis, chloroplast genome, dry-hot valley, Leguminosae, Yunnan
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| Campylotropis xinfeniae. (a) Habitat; (b) Leaves (abaxial); (c) Leaves (adaxial); (d) Branch and inflorescence; (e) Raceme, showing rachis, peduncle, and pedicels; (f) Detail of flower, standard, wings, keels, calyx, stamens and pistil; (g) Infructescence and legumes. |
Campylotropis xinfeniae B. Xu, X.H. Li & L.S. Jiang, sp. nov.
Diagnosis: This new species Campylotropis xinfeniae is morphologically similar to C. brevifolia and C. wilsonii in having glabrescent old branches, absent stipels, 3-foliolate leaves, and adaxially glabrous or sparse puberulent leaflets, one flower per subtending bract, but it differs from both in having often paniculate inflorescences (vs. racemes and racemes), obviously white standard (vs. reddish purple and purple), not incurved sickle keel (vs. incurved sickle and incurved sickle), shorter pistil (8.5–9.5 mm vs 10–11 mm and 11–11.5 mm), larger oblique legumes (13–15 × 3.5–4 mm vs. 8–9× 4–4.5 mm and 10–12 × 3.5–4 mm), and longer legume beak (3.5–4 mm vs. 0.5–1 mm and 2–2.5 mm).
Etymology: The specific epithet honors Professor Xin-Fen Gao, an outstanding botanist based at Chengdu Institute of Biology, Chinese Academy of Sciences, for her contributions to the taxonomy of Campylotropis (Gao, 2006; Gao et al., 1992). Its Chinese name, xìn fēn háng zǐ shāo (信芬杭子梢), is also suggested here.
Li-Sha Jiang, Xin-Hui Li, Xiong Li, Bo Xu. 2024. Campylotropis xinfeniae (Fabaceae, Papilionoideae), A New Species from Yunnan, China, based on morphological and molecular evidence. Ecology and Evolution. 14(5); e11410. DOI: doi.org/10.1002/ece3.11410 [20 May 2024]