Impatiens procumbens Franch. in Bull. Soc. Bot. France 33: 447. 1886.

Huang, Rong-Xin, Yuan, Tao-Hua, Chen, Yi, Li, Mei-Jun & Bai, Xin-Xiang, 2023, Five new synonyms for Impatiens procumbens (Balsaminaceae) in China, PhytoKeys 222, pp. 179-191 : 179

Impatiens procumbens Franch. in Bull. Soc. Bot. France 33: 447. 1886.

Fig. 8

Impatiens rhombifolia = Impatiens rhombifolia Y. Q. Lu & Y. L. Chen syn. nov. Type:-CHINA. Sichuan: Mt. Omei, 18 September 1987, Yingqing Lu 87186 (holotype: PE [PE00039616]).

Impatiens reptans = Impatiens reptans Hook. f., syn. nov. Type:-CHINA. Guizhou: Guiyang, 11 September 1898, E. M. Bodinier 2463 (lectotype, designated here: P [P00780766]; isolectotype: E [E00313595]).

Impatiens crassiloba = Impatiens crassiloba Hook. f., syn. nov. Type:-CHINA. Guizhou: Ganpin, without date, E. M. Bodinier 1782 (holotype: P [P00780642]).

Impatiens ganpiuana = Impatiens ganpiuana Hook. f., syn. nov. Type:-CHINA. Guizhou: Ganpin, 09 August 1897, E. M. Bodinier & L. Martin 2463 (holotype: E [E00313669]).

Impatiens atherosepala = Impatiens atherosepala Hook. f., syn. nov. Type:-CHINA. Guizhou: Pinfa, 01 October 1902, J. P. Cavalerie & J. Pierre 570 (holotype: E [E00313654]).

Type.

China. Yunnan: Dali City , 6 November 1885, M. I’Abbé Delavy 1949 (lectotype, designated here: P [P04543626]; isolectotype: P [P04543629, P04543628, P04543627]) .

Revised description.

Annual herbs, glabrous, 30-65 cm tall. Stem long prostrate basally, lower nodes with adventitious roots, green. Leaves alternate, lamina 4-7 cm long, 1-4 cm wide, lanceolate to ovate or ovate-elliptic, apex acuminate, margin crenate-serrate or spinescent-serrate, apex acuminate, base cuneate, blade dark green adaxially, pale green abaxially, herbaceous, lateral veins 6-9 pairs. Inflorescences axillary, racemose, 18-3 mm long, 1-3-flowered, bracteate base or above middle; bract 1, small, persistent, ovate-lanceolate, 3-4 mm long, 1-1.5 mm wide, herbaceous, green. Flower yellow, 2-3 cm deep, 1.5-2.5 cm wide. Lateral sepals 2, obliquely ovate, 4-6 mm long, 2-3 mm wide, abaxial mid-vein slightly thickened, green, herbaceous, 3-veined. Lower sepal cymbiform, 2-3.5 cm deep (including spur), mouth vertical, apex slightly acute, narrowed into a long spur, 1.5-2 cm long. Dorsal sepal orbicular, ca. 1 cm in diam., base cordate, apex retuse, abaxial midvein fine, narrowly carinate. Lateral united petals 2-lobed, not clawed, basal lobes small, orbicular, ca. 3 mm long, ca. 2 mm wide, with red spots; distal lobes dolabriform, ca. 12 mm long, ca. 6 mm wide, with dorsal inflexed auricle and notch in subapical portion on dorsal side. Filaments short, anther acute. Ovary erect, 5-carpellate. Capsule linear, 1.5-3 cm long, seeds 3-6, ca. 3 mm long.

Distribution and habitat.

Yunnan; Sichuan; Guizhou; Guangxi. The species grows on damp ground near hills and streams in the understorey at an elevation of 800-1500 m.

Phenology.

Flowering and fruiting occur from July to November.

Additional specimens.

China. Guizhou: Guiyang City, Yuanxin Xiong 86009 (PE); Zhenfeng County, Tsiang 4512 (PE); Wangmo County, Gongfan Wang 1-0142 (PE); Cengheng County, Fengcai Wang (PE); Renhuai City, Lijiao Lou MT571 (ZY); Zhijin Country, Fang Cheng 522425150910005LY (GZTM). Guangxi: Nandan County, Shengxiang Yu 3709 (PE). Hunan: Daike Tian et al., LS-2677 (CSH). Yunnan: Dali City, Qiwu Wang 63390 (PE); Luquan County, Yongjie Guo 10CS1920 (KUN); Yangbi County, Renchang Qin 25280 (KUN,PE); Weixin County, Spice Plant Investigation Team 870552 & 870553 (KUN); Songming County, Y.P.Chang 0130 (PE). Sichuan: Chengdu City, C.Y.Wang 7469 & 7446 (PE); Wenpei Fang 13140 & 13701 (KUN); Emeishan City, Jihua Xiong et al., 33487 & 33574 (IBK,PE); Shengxiang Yu 3274 (PE); Hsiung et al., 33574 (IBSC); Xiaojie Li LiXJ175 (KUN); Zhongwu Yao 3361 (PE); Caiqi Li 3998 (PE); Sichuan Plants, Western Academy of Sciences 891 (PE); Gensheng Zhou 81205 (PE); Zhengyi Wu 6439 (KUN); T.N.Liou & C.Wang 797 (PE); Cehong Li 96-39 (PE); Chenglie Zhou 7267 (PE); Mabian Country, Dejun Yu 4176 & 4175 (PE); Deyuan Hong et al., s.n. (PE); Dujiangyan City, Wenpei Fang 6046 (PE).

Figures

Figure 8. Impatiens procumbens A habit B plant C flower in face view D, E flower in lateral view F seed G leaf H flower dissected. Photographs by XIN-XIANG BAI.