Five new synonyms for Impatiens procumbens (Balsaminaceae) in China Author Huang, Rong-Xin College of Forestry, Guizhou University CN- 550025 Guiyang, Guizhou, China Author Yuan, Tao-Hua https://orcid.org/0000-0001-5278-3068 Wuhan, China Author Chen, Yi College of Forestry, Guizhou University CN- 550025 Guiyang, Guizhou, China Author Li, Mei-Jun College of Forestry, Guizhou University CN- 550025 Guiyang, Guizhou, China Author Bai, Xin-Xiang College of Forestry, Guizhou University CN- 550025 Guiyang, Guizhou, China & Qianxinan Academy of Agricultural and Forestry Sciences, CN- 562400 Xingyi, Guizhou, China 254715174@qq.com text PhytoKeys 2023 2023-03-29 222 179 191 http://dx.doi.org/10.3897/phytokeys.222.97087 journal article http://dx.doi.org/10.3897/phytokeys.222.97087 1314-2003-222-179 A2066AD53F295CD4B278A5D20D4AC010

Table 1. Comparison of morphological characters of Impatiens procumbens, I. reptans, I. crassiloba, I. ganpiuana, I. atherosepala and I. rhombifolia (data from protologue and type specimen).

Characters	I. procumbens	I. reptans	I. crassiloba	I. ganpiuana	I. atherosepala	I. rhombifolia
Stem	prostrate or procumbent	prostrate	prostrate	prostrate	no record	prostrate
Leaf	ovate or ovate-lanceolate, margin serrulate, 2-3 cm long, 1-1.5 cm wide, petiole 5-10 mm long	ovate or ovate-elliptic, margin crenate-serrate or serrate, 5-7 cm long, 2.5-3.5 cm wide, petiole 1-2 cm long	ovate, narrowly ovate or ovate-lanceolate, margin coarsely serrate, 2-7 cm long, 1-3 cm wide, petiole 5-20 mm long	elliptic, narrowly elliptic or lanceolate, margin coarsely serrate, 3-6 cm long, 1.5-3.5 cm wide, petiole 1-2 cm long	lanceolate, margin spinescent-serrate, 4-6 cm long, 1.5-2 cm wide, petiole 1-2 cm long	rhombic or subrhombic, margin serrate, 2-5 cm long, 1.2-1.6 cm wide, petiole 5-10 mm long
Lateral veins	5-6	6-7	6-8	4-6	6-8	5-6
Flower	1-2-flowered, 1.5-2 cm deep	2-3-flowered, ca. 2.5 cm deep	1-3-flowered, ca. 2.5 cm deep	1- or 2-flowered, ca. 2 cm deep	1-flowered, ca. 1.1 cm deep	2-flowered, ca. 1.5 cm wide
Lateral sepal	obliquely ovate, subfalcate, 3-veined, apex long cuspidate, 3-4 mm long	falcate-ovate, 3-veined, midvein apically stoutly mucronulate, 3-5 mm long	lanceolate, small, 3-5-veined, apex cuspidate, 3-5 mm long	ovate, abaxial midvein narrowly carinate, 3-4 mm long	ovate, aristate, arista ca. as long as sepals, 3-veined, ca. 5 mm long	yellow-green, ovate-orbicular, small, apex acute, ca. 5 mm long
Dorsal petal	orbicular, abaxial midvein thickened, narrowly carinate, 8-10 mm in diam.	orbicular, abaxial midvein fine, narrowly carinate, ca. 15 mm in diam.	orbicular, abaxial midvein carinate, ca. 10 mm in diam.	elliptic, abaxial midvein rostellate, carinate, ca. 10 mm long, ca. 8 mm wide	orbicular, abaxial midvein cristate, ca. 8 mm in diam.	orbicular, large, abaxial midvein thickened, ca. 15 mm long, ca. 13 mm wide
Lateral united petals	ca. 17 mm long, basal lobes subtetragonous, distal lobes obovate-oblong	ca. 22 mm long, basal lobes orbicular, small; distal lobes dolabriform	ca. 16 mm long, basal lobes orbicular, small; distal lobes large, apex 2-lobed	ca. 18 mm long, basal lobes broadly ovate; distal lobes dolabriform	ca. 12 mm long, basal lobes orbicular; distal lobes dolabriform, longer	ca. 18 mm long, basal lobes red spotted, orbicular, distal lobes dolabriform
Lower sepal	navicular, narrowed into an incurved spur, ca. 20 mm long	subnavicular, narrowed into an incurved spur, acute or divaricate, ca. 20 mm long	navicular, narrowed into a curved, long spur, ca. 18 mm long	funnelform, narrowed into an incurved spur, ca. 10 mm long	navicular, abruptly contracted into an incurved spur, ca. 15 mm long	navicular, narrowed into an erect spur; spur ca. 18 mm long
Anther	acute	acute	obtuse	obtuse	acute	acute