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| Adenophora xiaoxiensis D.G.Zhang, D.Xie & X.Y.Yi, in Yi, Xie, C. Zhang, Wang, Kang, Subedee et D.G. Zhang, 2019. |
Abstract
Adenophora xiaoxiensis (Campanulaceae), a new species from central China is described and illustrated. Molecular phylogenetic analysis (based on nuclear ribosomal ITS and the plastid regions trnL-F and matK) and morphology support recognition of A. xiaoxiensis as a distinct species sister to A. wilsonii. Adenophora xiaoxiensis has ovate-elliptic to broadly lanceolate cauline leaves with irregularly biserrate margins, triangular-ovate calyx lobes with 1-3 pairs subulate or linear teeth and a white corolla. About 70 individuals were observed in a restricted area of less than 100 m2. The habitat could be easily disturbed or destroyed, thus, we assessed it as endangered (EN), based on Criteria D of the International Union for Conservation of Nature Red List Categories.
Keywords: Eudicots, molecular phylogeny, morphology, Adenophora, taxonomy, endangered, IUCN
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| Images of living plants of Adenophora xiaoxiensis. A. Habit and individual, B. Inflorescence, C. Basal leaves, D. Root, E. Stamens and style, F. Sepals. |
Adenophora xiaoxiensis D. G. Zhang, D. Xie & X. Y. Yi, sp. nov.
Diagnosis. Adenophora xiaoxiensis differs from A. wilsonii in its irregularly biserrate leaf margins, ovate-elliptic to broad lanceolate cauline leaves, triangular-ovate calyx lobes with 1–3 pairs of subulate or linear teeth and white corolla
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| Morphological comparison of Adenophora wilsonii (A1-A6) and Adenophora xiaoxiensis (B1-B6) based on flower. Legends: (A1, B1) inflorescence; (A2, B2) flower; (A3, B3) pistil and stamen; (A4, B4) sepal; (A5, B5) leaves; (A6, B6) type specimens. |
Xin-Yu Yi, Dan Xie, Cheng Zhang, Yi-Qin Wang, Yong-Quan Kang, Bijay Raj Subedee and Dai-Gui Zhang. 2019. Adenophora xiaoxiensis (Campanulaceae), An Endangered Species from China. Phytotaxa. 402(2); 88–96. DOI: 10.11646/phytotaxa.402.2.2