Dumasia hirsuta Craib (1914: 116)

Jiang, Kai-Wen, Corlett, Richard T., Tian, Bin & Pan, Bo, 2021, Taxonomic notes on the genus Dumasia (Fabaceae), Phytotaxa 522 (2), pp. 109-120 : 110-111

1. Dumasia hirsuta Craib (1914: 116) .

Type :— CHINA. “W Hupeh: Patung Hsien”, alt. 1000‒1300 m, July 1907, E. H. Wilson 3483 (lectotype K!; isolectotype BM!). “Hupeh : Patung”, A. Henry 6115 (syntypes BM!, K!, NY!, P!). “Chiensi”, E . H . Wilson 1330 (syntype K!).

Dumasia hunanica Y. K. Yang, L. H. Liu & J. K. Wu (2004: 68) , syn. nov.

Type :— CHINA. Hunan: Shimen County: Nanping : “Sangerou”, alt. 300 m, 19 th August 1981, Lin-Han Liu 17950 (holotype HNNU; isotype CPU).

Description: —Perennial twining herbs 1‒ 3 m. Stems and petioles densely covered with brown base-branched hirsute hairs. Leaves trifoliolate; stipules lanceolate, 4‒7 mm, striated; petioles 2‒13 cm, densely hairy; leaflets ovate to broadly ovate, 1‒9 × 1‒7 cm, membranous, glabrous adaxially, glabrous or sparsely pubescent abaxially, secondary veins 4‒6 pairs, retuse or obtuse at apex, apiculate; terminal leaflets rounded or broadly cuneate at base; lateral ones oblique, truncate at base; stipels small, setaceous; petiolules 2‒3 mm, ± covered with brown hairs. Inflorescence an axillary pseudoraceme, 1‒10 cm, 2‒18-flowered, pubescent to almost glabrous; bracts and bracteoles minute, setaceous. Pedicels 1‒3 mm. Flowers ca. 18 mm. Calyx tubular, 5‒8 mm, glabrous or sparsely with appressed hairs, obliquely truncate at apex. Corolla yellow to light yellow; standard ca. 17 × 9 mm, with a basal claw ca. 7 mm; wings and keels as long as the standard. Ovary 4‒8-ovuled. Pods linear, flat, 4‒7 cm, ca. 1 cm wide, glabrous, with raised veins, beaked at apex, attenuate at base. Seeds 4‒7, brownish black.

Distribution and habitat: — Dumasia hirsuta is mainly distributed in the southern part of China: Chongqing, Fujian (currently known from online photos, http://ppbc.iplant.cn/tu/4455394), Guangxi, Guizhou, Hubei, Hunan, Jiangxi, Shaanxi, Sichuan, and Yunnan). It grows in moist valleys, forests, hill slopes, roadsides, or thickets at elevations between 400‒2100 m above sea level.

Phenology: —Flowering and fruiting from May to September.

Notes: —Although Yang et al. (2004) indicated that D. hunanica resembles D. villosa and D. truncata , key morphological characteristics mentioned by the authors (i.e. base branched bristles along stems and petioles, ovate leaflets, sparse hairs on abaxial surface, and glabrous pods) are consistent with the characteristics of D. hirsuta , so here we synonymize D. hunanica with D. hirsuta .

Iconography citation: — Wei (1995: 250): plate 61: 9.

Conservation status: — Dumasia hirsuta is widespread in South China and considered as Least Concern (LC) according to IUCN Categories (2019).

Specimens examined:— CHINA. Chongqing: Fengjie, Zhonghe, Guanyinhe, alt. 1300 m, 1 st July 1958, Z. R. Zhang 25437 ( IBSC). Fuling, Sanjiang, Honghuagou , in valley, in thickets, alt. 550‒600 m, 13 th June 1979, Anonymous 0429 (SM). Jinfo Mountains , Daheba , Biaoshuiyan , in moist valley, under mixed woods, alt. 800 m, 27 th September 2007, M. B. Ren J01 (PE). Nanchuan, J. H. Xiong & Z. L. Zhou 110 (HIB). Nanchuan, Xiaohe, Sanchacun , near the rampart, alt. 1700 m, 20 th July 1957, J. H. Xiong 92150 (SZ). Nanchuan, Jinfo Mountains, Meitancao , alt. 2100 m, 12 th July 1957, G. F. Li 62666 (KUN, SZ). Nanchuan, Jinfo Mountains , Gaoxuezi , Sanbulouti Valley , hill slope, under secondary forest, roadside, alt. 1570 m, 26 th June 1978, Pl. Geography Exped. 6 (CDBI). Nanchuan , Delong , Hualin , roadside, alt. 1350 m, 22 nd June 1986, Jinfoshan Exped. 1333 (PE). Shizhu County, Qiliao , Zhongqiushui , in moist valley, alt. 1150 m, 25 th July 1978, Y. Chen 2942 (CDBI). Shizhu County, Shenxin, Qidadui , forest margin, alt. 1400m, 16 th June 1979, Anonymous 0834 (SM). Shizhu County , Shiliu , under forest, alt. 1300 m, 10 th June 1979, Anonymous 0726 (SM). Wulong County , Tudi , moist place, alt. 600 m, 11 th September 1978, W. H. Wang 3640 (CDBI). Guangdong: Lechang County, Jiufeng District , Jiangyuan, Yangdong, in valley, under sparse forest, alt. 600 m, 8 th August 1986, B. Y. Chen et al. 2755 (IBSC). Yangshan County, Guanpokeng , streamside, 1 st August 1936, L. Deng 236 (IBSC). Guizhou: Anlong County, Longshan, Mashan, limestone cave, alt. 990 m, 11 th June 1960, Guizhou Exped. Z. S. Zhang & Y. T. Chang 5090 (PE). Fanjing Mountains , in thickets, alt. 1350 m, 20 th July 1959, N. Guizhou Exped. 2114 (PE). Fanjing Mountains, Macaohe, Jinzigou , riverside, wet places, alt. 780 m, 12 th June 1959, N. Guizhou Exped. 1120 (PE). Jiangkou County, Heiwanhe Proving ground, in valley, under dense forest, shady places, alt. 650 m, 19 th June 1988, Wulingshan Pl. Exped. 1167 (KUN, PE). Jiangkou County , Mount Fanjing , Xiaochahe , under forest, alt. 600 m, 19 th June 1988, Wulingshan Pl. Exped. 357 (PE). Jiangkou County , Baxi , Gongqiaogou , in valley, alt. 900 m, 11 th June 1964, Z. S. Zhang, C. Z. Dang, X. N. Xiao et al. 402288 (IBSC, PE). Shiqian County, Qingyang, Maoping , in valley, under forest, alt. 1150 m, 28 th July 1988, Wulingshan Pl. Exped. 2230 (PE). Songtao County , Maoling Mountain , near the town, on rock, sunny places, in thickets, roadside, 21 st July 1959, N. Guizhou Exped. 1552 (PE). Yinjiang, Jiangkou , in thickets, alt. 1350 m, 20 th July 1959, N. Guizhou Exped. 2114 (PE). Hubei: Patung Hsien , 26 th July 1934, H. C. Chow 959 (PE). Hunan: Dongkou , in valley, riverside, under sparse forest, 27 th June 1959, P. C. Tam 62899 (IBSC). Dongkou , riverside, alt. 790 m, 2 nd August 1986, Z. Y. Yang 381 (IBSC). Sangzhi, Shayuan to Nanmuping , along streams, roadside, alt. 420‒520 m, 10 th July 1988, Beijing Team 003762 (PE). Shimen, Jiangping, Gaoqiaohe, Jinguanmen, alt. 530‒730 m, 5 th July 1987, Hupingshan Exped. 0947 & 0979 (PE). Suining County, Huangsang Nature Reserve , Yuantoushan , alt. 1070 m, 28 th June 2013, J. J. Zhou & D. Zhou 13435 (CSFI). Xinning , Lizishan, in valley, under forest, alt. 800 m, 13 th July, Y. B. Luo 2668 (PE). Xinning, Shun’er , Tongzichong, in valley, alt. 1200 m, 29 th June, Y. B. Luo 2493 (PE). Without exact locality, X. G. Li (Shaoyang Team) 62899 (IBK). Jiangxi: Lushan, Wulaofeng , 14 th October 2011, Y. S. Peng, Z. M. Gui, T. J. Liang et al. 0367 (ZMNH). Shaanxi: Langao County, Taohe, Yiping, alt. 1750 m, 20 th July 1959, P. Y. Li 7621 (WUK). Sichuan: Xuyong County, Shuiwei, Huagaoxi , alt. 635 m, 4 th June 2013, X. F. Gao, Y. D. Gao & W. B. Ju HGX11405 (CDBI).