Indocalamus chongzhouensis (Poaceae: Bambusoideae), a new synonym of I. emeiensis: evidence from morphology and complete chloroplast genome data Author Gao, Li-Qin Jiangxi Provincial Key Laboratory for Bamboo Germplasm Resources and Utilization, Forestry College, Jiangxi Agricultural University, Nanchang 330045, P. R. China. & Nanchang Business College, Jiangxi Agricultural University, Gongqingcheng 332020, P. R. China. Author Li, Yong-Long 0000-0001-7191-0106 Jiangxi Provincial Key Laboratory for Bamboo Germplasm Resources and Utilization, Forestry College, Jiangxi Agricultural University, Nanchang 330045, P. R. China. & liyonglong 6868 @ 163. com; https: // orcid. org / 0000 - 0001 - 7191 - 0106 Author Guo, Chun-Ce 0000-0003-3376-1116 Jiangxi Provincial Key Laboratory for Bamboo Germplasm Resources and Utilization, Forestry College, Jiangxi Agricultural University, Nanchang 330045, P. R. China. & chunceguo @ jxau. edu. cn; https: // orcid. org / 0000 - 0003 - 3376 - 1116 chunceguo@jxau.edu.cn Author Yang, Guang-Yao 0000-0002-6222-2130 Jiangxi Provincial Key Laboratory for Bamboo Germplasm Resources and Utilization, Forestry College, Jiangxi Agricultural University, Nanchang 330045, P. R. China. & yanggy 2004 @ 126. com; https: // orcid. org / 0000 - 0002 - 6222 - 2130 Author Zhang, Wen-Gen 0000-0003-0946-8614 Jiangxi Provincial Key Laboratory for Bamboo Germplasm Resources and Utilization, Forestry College, Jiangxi Agricultural University, Nanchang 330045, P. R. China. & zhangwengen @ 163. com; https: // orcid. org / 0000 - 0003 - 0946 - 8614 text Phytotaxa 2022 2022-04-01 542 1 53 63 http://dx.doi.org/10.11646/phytotaxa.542.1.4 journal article 53151 10.11646/phytotaxa.542.1.4 a67ebd77-ad0b-4c82-9c5d-2064090bc3b1 1179-3163 6404559 Indocalamus emeiensis C. D. Chu et C. S. Chao (1980: 24) ( Fig. 6 ) Type: — China , Sichuan : Leshan , E’mei Moutain , Hongchunping , elev. 1000–1200 m , 7 June 1976 , C . D . Chu & C . S . Chao 76037 ( lectotype , designated here, NF3001692 !; isolectotypes, NF !, N !, photo PE !) = Indocalamus chongzhouensis Yi et Yang (2004: 13) , syn . nov . Type : — China , Sichuan , Chongzhou , Sanlang Town , Chayuan Village , elev. 850–1100 m , 17 Sep. 2003 , T . P . Yi 03014 ( Syntypes : SIFS !) . Revised description:— Rhizomes leptomorph. Culms 1.5–4.2 m tall, 0.7–1.5 cm in diameter, hollow; internodes terete, 20–38 cm long, young culm reddish-brown strigose, infranodal region white powdery, glabrescent when old; wall 1.5–3.0 mm thick; supranodal ridge prominently raised; intranodes 5–15 mm long. Culm sheaths tardily deciduous, oblong, thinly leathery or papery, 1/2 as long as internodes, densely reddish-brown strigose and purple-spotted, margin densely reddish-brown ciliate; auricles falcate, 7–15 mm long, 3–4 mm wide; oral setae radiate, 1.5–2 cm long; ligules 1–3 mm tall, truncate, margin densely ciliate; blades recurved, lanceolate. Foliage leaves 5 or 6 per ultimate branch; sheath sparsely puberulent initially, glabrescent, margin densely ciliate; auricles falcate, 1–2 cm long, 2–3 mm wide; oral setae radiate, 1.5–2.5 cm long; ligules truncate, 2–4 mm tall, margin densely ciliate; blades oblong-lanceolate, 33.0–42.5 × 5.9–9.5 cm , both surfaces glabrous, longitudinal veins 10–15 pairs, base cuneate, apex long-acuminate, margin entire. Inflorescence unknown. Distribution and habitat: — Indocalamus emeiensis is endemic to Sichuan Province , China ( Fig. 7 ) with three distributed localities found so far, i.e., Muping, Sanlang and Emei Mountain. It usually grows in the understory of evergreen broad-leaved forests or dank valleys at elevations of 850–1200 m . Phenology: —New shoots from August to October. Flowering unknown. Additional specimens examined: — CHINA . Sichuan : Chongzhou, Sanlang, 13 Jul. 2018 , Gao et al ., SCCD1801 ( JXAU ); ibid., 18 Oct. 2019 , Gao et al ., SCCD1901 ( JXAU ); ibid., 10 Aug. 2020 , Gao et al ., SCCD2001 ( JXAU ); Leshan, E’mei Mountain, Hongchunping, 28 Sep. 1997 , T . P . Yi s.n. ( SIFS ); ibid., 20 Oct. 1990 , T . P . Yi 90130 ( SIFS ); ibid., 15 Jul. 2018 , Gao et al ., SCEM1801 ( JXAU ); ibid., 19 Oct. 2019 , Gao et al ., SCEM190 ( JXAU ); ibid., 11 Aug. 2020 , Gao et al ., SCEM2001 ( JXAU ); Ya’an, Baoxing, Muping, 8 Jul. 1998 , T . P . Yi 98555 ( SIFS ) .