Sinosasa damingshanensis (Hsueh & W. P. Zhang) N. H. Xia & Y. L. Ding, 2025

Zhang, Yi-Ting, Lin, Shu-Yan, Niu, Zheng-Yang, Jiang, Wei-Xin, Xia, Nian-He & Ding, Yu-Long, 2025, Sinosasa damingshanensis (Poaceae, Bambusoideae), a new combination supported by morphological and molecular evidence, PhytoKeys 255, pp. 41-50 : 41-50

publication ID	https://doi.org/10.3897/phytokeys.255.148471
DOI	https://doi.org/10.5281/zenodo.15175838
persistent identifier	https://treatment.plazi.org/id/559FD383-8756-5374-B153-4BAAB8F2DDDD
treatment provided by	PhytoKeys by Pensoft
scientific name	Sinosasa damingshanensis (Hsueh & W. P. Zhang) N. H. Xia & Y. L. Ding
status	comb. nov.

Treatment

Sinosasa damingshanensis (Hsueh & W. P. Zhang) N. H. Xia & Y. L. Ding comb. nov.

Figs 2 View Figure 2 , 3 View Figure 3 , 4 View Figure 4

Basionym.

Chimonobambusa damingshanensis Hsueh & W. P. Zhang , Bamb. Res. 7 (3): 5. (1988).

Lectotype (here designated).

China • Guangxi, Nanning, Wuming, Daming Mountain , 12 Nov. 1986, C. J. Hsueh 8605 fl. (Lectotype: SWFC!).

Revised description.

Shrubby bamboos. Rhizomes leptomorph, rhizome internodes cylindrical, 2.45–4.75 cm long, nearly solid; nodes prominent, 2–4 roots at each node; rhizome bud ovate, ca. 4 mm high. Culms 1.5–2 m tall, 5–8 mm in diam; internodes terete, 5.4–13 cm long, initially with white pubescent gradually glabrous; supranodal ridge conspicuous, intranodes glabrous, 3–4 mm tall, infranodal region with a creamy-yellow and sericeous ring; branches solitary at each branching node. Culm bud solitary, triangular-ovate, sunken into supranodal ridge. Culm leaf sheaths persistent or tardily deciduous, papery, shorter than or as long as internode, abaxially glabrous or sparsely strigose, 6.8–13.3 cm high; sheath scar flat or slightly prominent; auricles and oral setae absent; blades erect, triangularly subulate, 1.6–4.5 mm high, glabrous. Foliage leaves 5–10 per ultimate branch; foliage leaf sheaths glabrous, purple or purple-green; auricles linear, 1–2 mm wide; oral setae erect or curled, 4–8, pale yellow, 2.5–6 mm long, easily deciduous when old; ligules developed, (3.3) 6–10 (– 16) mm high, papery. Blades lanceolate, papery, 12.5–31.7 × 1.0– 4.9 cm, both surfaces glabrous, margins serrulate along both sides, secondary veins 3–4 (6) pairs, significantly elevated on the lower leaf surface. The unit of the inflorescence raceme-like; lemma papery, ovate-lanceolate, ca. 10 mm long, glabrous; palea shorter than lemma, 6–7 mm long, 2 - keeled; 2 stigmas, 3 stamens; ovary ellipsoid; style short. Fruit unknown.

Notes.

Chimonobambusa damingshanensis Hsueh & W. P. Zhang was originally described based on C. J. Hsueh 8605 which contains multiple specimens. According to the ICN ( Turland et al. 2018) Art. 8.1, “ The type (holotype, lectotype, or neotype) of a name of a species or infraspecific taxon is either a single specimen conserved in one herbarium or other collection or institution, or a published or unpublished illustration ”, C. J. Hsueh 8605 fl. ( SWFC, floriferous specimen) is designated here as the lectotype of Ch. damingshanensis . It has flower specimens and is more complete.

Phenology.

New shoots produced during April to May.

Chinese name.

大明山华赤竹 (Chinese pronunciation: dà míng shān huá chì zhú).

Distribution and habitat.

Broad-leaved forests; It is endemic to Daming Mountain in Wuming District, Guangxi, China.

Additional specimen examined.

Sinosasa damingshanensis : China • Guangxi: Nanning, Wuming, Daming Mountain , 23°29′43.9″N, 108°26′14.0″E, alt. 1224–1445 m a. s. l., 25 December 2024, Y. L. Ding & Y. T. Zhang WM 241225 ( NF!) GoogleMaps .