Peucedanum huangshanense Lu Q.Huang, H.S.Peng & S.S.Chu, 2020

Chu, Shan-Shan, Wang, De-Qun, Peng, Hua-Sheng & Huang, Lu-Qi, 2020, Peucedanum huangshanense (Apiaceae), a new species from Anhui, China, Phytotaxa 430 (1), pp. 17-24 : 21-23

publication ID	https://doi.org/10.11646/phytotaxa.430.1.3
DOI	https://doi.org/10.5281/zenodo.13876989
persistent identifier	https://treatment.plazi.org/id/F71DF65F-A620-FFA4-C696-2894FE40FE30
treatment provided by	Felipe
scientific name	Peucedanum huangshanense Lu Q.Huang, H.S.Peng & S.S.Chu
status	sp. nov.

Treatment

Peucedanum huangshanense Lu Q.Huang, H.S.Peng & S.S.Chu View in CoL , sp. nov. ( Figs. 1 View FIGURE 1 & 3 View FIGURE 3 )

Type: — CHINA. Anhui: Mount Huangshan , on the forest margins and cliffs, elev. ca. 1600 m, 20 August 2018, Peng082011 (holotype ACM!; isotype ACM!) .

This new species is similar to Peucedanum praeruptorum , but it can be distinguished from the latter with larger compound umbels (5–14 cm across), rays up to 25, and long-ovoid mericarps with lateral ribs narrowly winged.

Perennial herbs 30–100 cm tall; Rootstock stout, crown usually bearing remnants of leaf sheaths. Stem solitary, branched above, branchlets sparsely puberulous. Leaves basal and cauline, alternate, long-petiolate; basal leaves persistent, petiole 5–15 cm long, ovate-lanceolate petiole sheathing at base; blade broad-ovate or triangular-ovate in outline, ternate or ternate-pinnate, pinnae long-petiolate, 1.7–6.5 cm; terminal leaflet rhombic-obovate, 3–5- lobed, 2–5.5 × 1–3.6 cm, base cuneate, margins 4–6 irregular serrate, apex acuminate, both surfaces glabrous or occasionally puberulous, abaxially nerves prominent; cauline leaves in the lower part similar to basal leaves with shorter petiole; distal turning nearly sessile, leaf sheath slightly wide, margins membranous, leaflet 3-lobed, lobes narrow, base cuneate. Inflorescences compound umbels, 5–14 cm across, much branched; umbellules 10–30-flowered; bracts absent, occasionally 1–2, linear; rays 13–25, unequal, 1.2–6 cm long, inner faces pubescent; bracteoles 8–15, lanceolate, nearly equal to or longer than flowers but shorter than fruits, rough puberulous; pedicels 0.35–0.7 cm. Calyx teeth obsolete; petals white or reddish-lavender, ovate, inflexed; styles short, curved slightly outward. Mericarps brown, long ovoid, ca. 5–6 × 2.5 mm, sparsely pubescent; lateral ribs narrowly winged; vittae 2–4 in each furrow, 6–8 on commissure.

Phenology: —Flowering and fruiting was observed from August to December.

Distribution and Habitat: — Peucedanum huangshanense is endemic to Mount Huangshan, Huangshan City, Anhui Province, China. It grows on the forest margins and cliffs, at elevations between 1100–1800 m.

Etymology: —The specific epithet refers to the locality where this new species was first found.

Paratypes: — CHINA. Anhui: Mount Huangshan , on the cliff, elev. ca. 1684 m, 27 October 2018, Chu & Chen 102701, 102703 ( ACM!) ; same locality, on the mountain roadside, elev. ca. 1630 m, 2 August 2019, Chu & Han QH 080205, QH080217 ( ACM!)