Saussurea nanzhengensis Y.S.Chen & L.S.Xu
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publication ID |
https://doi.org/ 10.11646/phytotaxa.653.3.5 |
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DOI |
https://doi.org/10.5281/zenodo.13547100 |
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persistent identifier |
https://treatment.plazi.org/id/934387FA-FFF2-5E0E-91DB-5FB5FE74F9F4 |
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Felipe |
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scientific name |
Saussurea nanzhengensis Y.S.Chen & L.S.Xu |
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sp. nov. |
Saussurea nanzhengensis Y.S.Chen & L.S.Xu View in CoL , sp. nov. ( Fig. 2 View FIGURE 2 )
Type: — CHINA. Shaanxi, Hanzhong City, Nanzheng county, Longtoushan , limestone slopes along forest margin, 1420–2100 m, 26 July 2021, Lian-Sheng Xu & Zi-Chao Jin XJ 20210128 (holotype IBSC; isotypes IBSC, XBGH) .
Herbs 20–70 cm tall, perennial. Stem solitary, erect, simple or few branched, sparsely pubescent. Basal and lower stem leaves petiolate; petioles 2–4 cm long, winged; leaf blade narrowly elliptic, lyrately lobed, blade 14–26 × 3.5–5 cm, adaxially green and glabrous, abaxially greyish white and densely arachnoid lanate or nearly glabrous, margin entire or subentire; lateral lobes (1–)2–4 pairs, splitting to the middle, triangular in shape, apex acute to obtuse; terminal segment oblong, apex acute, distinctly larger than other ones; middle and upper stem leaves nearly sessile, lanceolate, adaxially green and glabrous, abaxially densely arachnoid lanate, undivided, apex attenuate, base attenuate, gradually smaller upward on stem. Capitula numerous, in a paniculate synflorescence. Involucre campanulate, 0.6–1 cm in diameter, 0.9–1 cm in high. Phyllaries in 6 rows, green with black margin, densely arachnoid lanate or nearly glabrous, apex acuminate to acute; outer phyllaries ovate, ca. 10 × 2.6 mm; middle phyllaries triangular-lanceolate, ca. 10 × 2.5 mm; inner phyllaries narrowly triangular-lanceolate, ca. 7.5 × 1.5 mm. Receptacle bristles brown, 2–3 mm long. Corolla purple, 4.5–5 mm long, tube 4.5–5.5 mm long, limb 4.5–5.5 mm long, lobes 2.5–3 mm long. Pappus brown; outer bristles 4–4.5 mm long, scabrid; inner bristles 8–9.5 mm long, plumose.
Phenology: —Flowering and fruiting from late July to early October.
Etymology: — Saussurea nanzhengensis is named after its type locality, Nanzheng county, Shaanxi, China.
Distribution and habitat: — Saussurea nanzhengensis is distributed in Nanzheng county, Shaanxi province, and Nanjiang county, Sichuan province of China ( Fig. 3 View FIGURE 3 ). It usually grows on limestone slopes along forest margin at altitudes of 1000~ 2100 m.
Additional specimens examined (paratypes): — CHINA. Shaanxi, Nanzheng country, Longtoushan , roadside grass, 1420 m, 26 July 2021, L. S. Xu & Z. C. Jin XJ 20210128 ( IBSC) ; Sichuan: Nanjiang county, Gaungwushan , limestone slopes along forest margin, 1600–1800 m, 5 September 2020, Lian-Sheng Xu & Jun Li XL 200491 ( IBSC) ; Nanjiang county, Gaungwushan , limestone slopes along forest margin, 1050 m, 4 October 2021, You-Sheng Chen & Xin-Qiang Guo 21233 ( IBSC) .
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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