Transferring Peucedanum macilentum (Apioideae, Apiaceae) to Ligusticopsis based on morphological and molecular evidences Author Niu, Junmei 0000-0002-9772-7032 School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, China 2652484398@qq.com Author Zhou, Ting 0009-0005-0723-0524 School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, China 3529498187@qq.com Author Li, Weixian 0009-0001-4515-4690 School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, China 962402688@qq.com Author Zhou, Shilin 0000-0001-6158-1193 School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, China 1607433531@qq.com Author Liu, Zhenwen 0000-0001-9397-2260 Yunnan Academy of Forestry and Grassland, Kunming 650201, China & Gaoligong Mountain, Forest Ecosystem, Observation and Research Station of Yunnan Province, Kunming 650225, China & Yunnan Key Laboratory of Biodiversity and Ecological Security of Gaoligong Mountain, Kunming 650506, China liuzw2021@163.com Author Zhou, Jing 0000-0001-5844-6126 School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, China & Yunnan College of Modern Biomedical Industry, Kunming Medical University, Kunming 650500, China zhoujing_apiaceae@163.com text Phytotaxa 2024 2024-06-12 652 4 249 260 http://dx.doi.org/10.11646/phytotaxa.652.4.1 journal article 10.11646/phytotaxa.652.4.1 1179-3163 13216805 Ligusticopsis macilenta (Franch.) J.M. Niu & J. Zhou , comb . nov . ( Fig. 1 ). Basionym: Peucedanum macilentum Franchet (1894: 142) . ≡ Kitagawia macilenta (Franch.) Pimenov (2017: 166) . Type: — CHINA . Yunnan : Hokin , prope Koua-la-po, alt. 2800 m , 18 Aug 1886 , Delavay 2476 ( lectotype designated by Pimenov (2017: 166) : P [ P02272026 !]; isolectotypes : K [ K000685420 !], NY [ NY00406176 !], P [ P02272027 !, P02272025 !]) . Description: —Perennial herbs. Plants 30–70 cm . Stems solitary or several, base clothed in fibros remnant sheaths, branched above, branches hollow, puberulous, nodes densely tomentose. Basal leaves numerous; petioles 5–10 cm , sheaths large, purplish, apex broadly auriculate, often pubescent and scarious-margined; blade triangular-ovate in outline, 3–4-pinnatisect, pinnae 5–6 pairs; ultimate segments linear, 1.5–3 × 0.8–1.2 mm . Compound umbels terminal; umbels 4–7 cm across; bracts 2–3, linear, entire or occasionally 3-lobed; rays 12–20(–30), 2–3 cm , slender, inner faces sparsely pubescent; bracteoles 6–8, linear, 3-lobed or pinnate, pubescent; umbellules 12–16-flowered. Calyx teeth conspicuous, lanceolate. Petals white, broad-obovate, ca. 1 mm , pubescent, stemens 5, stylopodium short-conic, styles short. Schizocarp ovoid-ellipsoid, ca. 3 × 2 mm ; dorsal ribs prominent, lateral ribs narrowly winged; vittae 1–2 in each furrow, 4 on commissure. Distribution and habitat: —Endemic to China , occurring in Sichuan Province . It grows in alpine grassland at elevations of 3000–4200 m . Phenology: —Flowering and fruiting from August to September. Vernacular name:—DZÑIJ· (Chinese name), xì liè ní gǎo běn (Chinese pronunciation). Additional specimens examined: — CHINA . Sichuan : Muli County , Yazui forest farm, 28°12'6.83"N, 101°15'97.58"E, 3726 m , 12 August 2016 , J . Zhou & Z . W . Liu 20160670 ( Kunming Medical University ) ; Kangwu temple, 28°20'14.33"N , 101°14'28.35"E , 3300 m , 12 August 2016 , J . Zhou & Z . W . Liu 20160673 ( Kunming Medical University ) ; Mianya Township , 27°41'13.10"N , 101°13'26.55"E , 3215 m , 21 August 2020 , J . Zhou , M . J . Guo & J . M . Niu Z20-063 ( Kunming Medical University ) ; Sanjia village , 28°12'3.41"N , 101°9'11.85"E , 3463 m , 24 August 2020 , J . Zhou , M . J . Guo & J . M . Niu Z20-095 ( Kunming Medical University ) . Notes: — Ligusticopsis macilenta was previously recorded from Heqing, Weixi and Tengchong of Yunnan Province based on flora records ( Sheh 1992 ; Sheh et al . 2005 ). However, after re-examining the specimens identified as Peucedanum macilentum from Yunnan Province in the Chinese Virtual Herbarium (http://www.cvh.ac.cn/), it was found that these plants are misidentified, which in fact are Ligusticopsis glaucescens , L. brachylobum ( Franchet 1894: 134 ) Leute (1969: 71) or Selinum cryptotaenium Boissieu (1903: 847) etc . Therefore, Ligusticopsis macilenta is currently distributed only in Sichuan Province based on available voucher materials.