Synotis guizhouensis Jeffrey & Chen 1984
Creators: name: Fan, Yu
name: Wang, Long-Yuan
name: Zhang, Rui
name: Tang, Ming
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Asterales
Asteraceae
Synotis
Synotis guizhouensis

description: Synotis guizhouensis Jeffrey & Chen (1984: 313).   
 Senecio sinicus auct. non (Diels) Chang (1936: 155); Senecio sinicus auct. non (Diels) Hu (1968: 144); Chen & Liu (1989: 266); Chen (1999: 188); Chen et al. (2011: 497) (Figs. 1, 3−7).   
 Type: — CHINA. Guizhou, Guiding (Pin-fa to Kouy-tin), Cavalerie s. n. (holotype: P02538369!) (Fig. 3).   
 = Synotis damiaoshanica Jeffrey & Chen (1984: 298); Chen (1999: 178); Chen et al. (2011: 494), syn. nov.   
 Type: — CHINA. Guangxi: Rongshui, Xiaosang Village, Yuanbao Moutain, roadside and forest margin, 1200−1500 m a.s.l., 9 October 1958, S. Q. Chen 16788 (holotype: PE01842010!; isotypes: IBK00026370!, IBSC288324!, SZ00334999!, WUK211716!). (Fig. 1).   
Subshrubby herb. Stems solitary, erect, 35–180 cm tall. Stems slender, simple, glabrescent, branching, usually densely leafy or sometimes leafless except in the upper part. Leaves shortly petiolate, oblanceolate-elliptic or oblanceolate, 7– 15 × 1.5–3 cm, papery, white-arachnoid on the midrib above, sparsely shortly setulose and sometimes purplish beneath, pinnately veined, lateral veins 10–18, margin shallowly to coarsely sinuate-dentate with mucronulate teeth, attenuate at the base; petiole 0.5–1 cm, fulvous-pubescent, exauriculate; leaves of synflorescence-branches smaller, subsessile or sessile, leaves uppermost linear, bract-like. Capitula radiate, few to numerous in narrow terminal thyrses or corymbs; peduncles 6–10 mm, densely arachnoid-tomentose, 3–5-bracteolate, bracts linear-subulate, minute, 3−5 mm long. Involucres cylindrical, 6–10 × 2–3 mm, calyculate; bracts of calyculus 4–10, subulate, 2–3 mm long; phyllaries 8–12 (13), linear-oblong, 1–1.5 mm wide, puberulent, margin broadly scarious, apically obtuse or subacute. Ray florets 3–5; corolla yellowish, 8–10 mm, tube ca. 6–7 mm, lamina 3–5 × 1−1.5 mm, usually revolute, shorter than the style. Disk florets 13–24; corolla yellowish, ca. 10 mm, tube 2–3 mm, limb funnelform, ca. 7–8 mm; lobes oblong-lanceolate, ca. 3 mm, apically acute. Anthers 2.5–3.5 mm; anther tails 1.2–2 times the length of the anther-collar; anther-collars rather elongated, gradually dilated towards the base. Style-arms 1.5–2 mm long, fringed with papillae, apical tuft not evidently longer than the laterals. Achenes ca. 3–4 mm long, glabrous. Pappus white, 7–11 mm long.  
 Distribution and habit: — Synotis guizhouensis is currently known common in Guizhou, northern and western Guangxi, and eastern Yunnan, China (Fig. 9). It grows at the forest margin or under mixed forests with little understory at 1600–2200 m elevations.   
 Phenology: —Flowering July to September, fruiting October to November.   
 Additional specimens examined: — CHINA: Guangxi, Fengshan, Fengshan Expedition 4-7-46 (GXMI); Lingyun, C. C. Chang 11181, 11187 (IBSC), Z. D. Nan 5330 (IBSC); Rongshui, M. Tang & L. Y. Wang 124 (IBSC), R. Zhang & Y. Fan zrz5 (JXAU); Tianlin, M. Tang & L. Y. Wang 137 (IBSC). Guizhou, Guiding, C. Ren & L. Y. Wang 366 (IBSC), L. Y. Wang & C. Ren 2 (IBSC); Leishan, L. Y. Wang & C. Ren 31 (IBSC); Nayong, Bijie Expedition 515 (PE), L. Y. Wang & C. Ren 46 (IBSC); Panxian, Anshun Expedition 1104, 1126 (PE); Qingzhen, Chuanqian Expedition 1748 (PE); Zhenfeng, D. J. Liu 739 (HGAS). Yunnan, Wenshan, H. T. Tsai 58-8050 (KUN), Y. M. Shui 003373 (PE); Yiliang, M. Tang & J. P. Luo 96 (IBSC), Northeastern Yunnan Expedition 623 (KUN).
description: Published as part of Fan, Yu, Wang, Long-Yuan, Zhang, Rui & Tang, Ming, 2022, Notes on the specific identity of Synotis damiaoshanica (Compositae, Senecioneae), with clarification of the confusing identities of S. guizhouensis and S. sinica, pp. 150-160 in Phytotaxa 543 (2) on pages 158-159, DOI: 10.11646/phytotaxa.543.2.5, http://zenodo.org/record/6450777