Apios carnea (Wall.) Bentham ex Baker (1876: 188)

Zhang, Fan, Feng, Si, Zhou, Jianjun, Zhang, Rong, Liu, Linhan, Yang, Chengzi, Yu, Xunlin & Pan, Bo, 2018, Apios chendezhaoana (Fabaceae), an overlooked species and a new combination from China: evidence from morphological and molecular analyses, Phytotaxa 371 (1), pp. 1-16 : 8

Apios carnea (Wall.) Bentham ex Baker (1876: 188) .

Type:— NEPAL. 1 July 1821, N. Wallich 5527, Barcode E00185070 (lectotype E! here designated).

Apios bodinieri H. Léveillé (1914: 225) . syn. nov.

Type:— CHINA. Guizhou: Mei-Tong-Chan, E.M. Bodinier 499, Barcode E00185067 (lectotype E! here designated).

Twinning climbers 3–4 m long. Sometimes old rootstocks woody. Leaves usually 5-foliolate, 12–25 cm; stipules and stipels persistent; leaflets oblong to ovate-oblong, 3.5–13 × 2–7 cm, papery. Raceme 15–40 cm, 2–3 flowers per node. Calyx campanulate, 4 lobed. Corolla red, reddish purple, or orange, quite open when flowering, twice as long as calyx. Wings shortest, 0.6–1.2 cm; keel curved to semicircular. Style coiled. Legume linear, 8–19 × 0.6–0.7 cm. Seeds 12–21, dark brown.

Distribution and habitat: — Apios carnea is distributed in Bhutan, China, India, Laos, Myanmar, Nepal, Thailand, and Vietnam. It grows in forests, or along riversides and roadsides, at elevations between 600–3200 m above sea level.

Phenology: —Flowering from July to September; fruiting from August to November.

Apios bodinieri has lax nodose inflorescences, red and open flowers. It most resembles Apios carnea and only differs from the latter by its trifoliolate leaves. Occasionally A. carnea has leaves with 3 leaflets, or even 7 leaflets, so we reduce A. bodinieri to a synonym of A. carnea . Woods (1988) also included A. bodinieri within A. carnea .

Specimens examined:— CHINA. Chongqing: Chengkou, Baichi Mt. 800m, 10 September 1958, Tian-Lun Dai 102503 (PE). Fujian: Chong’an, Sangang, Nanshan, 6 August 1958, Pei-Xi Qiu 1653 (PE). Gansu: Wenxian, Fanba, 680 m, 21 October 1973, Zhi-Xin Hu 3496 (IBSC). Guangdong: Xinyi, Shuangchangping, Fengdali, 12 August 1931, Xi-Peng Gao 51790 (PE). Guangxi: Damiaoshan, Sanfang, Pingshixiang, Jiuwan Mt., Jiuyang River, 31 August 1958, Shao-Qing Chen 16576 (IBK). Lingchuan, Dajing, Baotalong, 9 September 1984, Ru-Rong Yang 84012 (PE). Guizou: Bijie, Baohe, 1500 m, 20 August 1957, Ping-Hua Yu 427 (PE). Xingren, Baling, Chenjiagou, 1300 m, 14 August 1960, Guizhou Team 7735 (PE). Hunan: Xinhuang, Tianleishan, 800 m, 13 July 1988, Wulingshan Team 836 (PE). Xinning, Ziyun Mt., 1150 m, 16 September 1984, Ziyun Team 1931 (PE). Jiangxi: Jinggangshan, 730 m, 19 October 1963, Jun-San Yue 4861 (PE). Sichuan: Mount Emei, Da’e Temple, 1 September 1939, Zhong-Wu Wang 4953 (PE). Mianning, Daqiao, Xiaogou, 2100 m, 4 July 1959, Su-Gong Wu 2192 (PE). Yibin, Gulin, Wulong, Qinglong, 27 August 1976, Shibao Team s.n. (SM). Xizang: Linzhi, Dongjiu to Tongmai, 3 August 1975, Qingzang Team 751237 (PE). Yunnan: Baoshan, Pupiao, May 1941, Han-Chen Wang 800 (PE). Gongshan, Dulongjiang, Maku, 5 August 1982, Qingzang Team 8895 (PE). Songming, Guodong, 25 August 1957, Bing-Yun Qiu 55047 (PE).