Impatiens diversifolia B. Heyne ex Wight & Arnott (1834: 139)

Singh, Rajeev Kumar, 2016, Typification of thirty six names of thirty five recognized taxa in Impatiens (Balsaminaceae), endemic to Western Ghats, Phytotaxa 268 (3), pp. 167-180 : 168-169

6. Impatiens diversifolia B. Heyne ex Wight & Arnott (1834: 139) .

Type citation:—“ Wall.! L. n. 4749; Wight! cat. n. 457.— I. Malabarica, Klein ! — I. heterophylla, Wall. ! L. n. 4748. b.”

Type:— INDIA. Without precise locality, s.d., Herb. Wight, Wallich cat. n. 4749 [c] (lectotype K001039820 !, designated here; isolectotype K001039816 !) .

Residual syntypes: — INDIA. Without precise locality, s.d., Herb. Heyne, Wallich cat. n. 4749 [a] ( CAL!, K001039817 ! and K001039819 !) ; Kerala: Quilon [Kollam], October 1814, Herb. Madr. ( I. malabarica ), Wallich cat. n. 4749 [b] ( K001039818 !) ; Kerala: Quilon, October 1814, Herb. Rottler , Klein s.n. ( K000694875 !) ; Peninsula Ind. Orientalis, s.d., Wight cat. n. 457 [a] ( E00174300 ‒ 00174302 !, K000694874 , p.p.! and MH! Accession no. 7389) ; Kerala, Quilon, October 1814, Klein s.n. ( K000694874 , p.p.!) .

Distribution:— India, endemic (Karnataka, Kerala and Tamil Nadu).

Notes:— Wight & Arnott (1834) described Impatiens diversifolia based on the collections of Klein, Wallich cat. n. 4749, Wallich cat. n. 4748 [b] and Wight cat. n. 457. From the Wallich catalogue it is clear that Wallich cat. n. 4749 is divided into three subheadings—[a] Impatiens diversifolia Herb. Heyne , [b] I. malabarica Herb. Madras (collected by Klein) and [3] I. diversifolia Herb. Wight. Pertaining to the specification given in protologue, twelve herbarium specimens were traced (CAL, E00174300 ‒ 00174302, K000694874, K000694875, K001039816 ‒ 001039820 and MH7389). The sheet K001039820, is better preserved and has dissected flower parts pasted on the sheet, and agrees well with the protologue. Therefore, it is designated here as the lectotype.

The K000694874 herbarium sheet is a mixed collection, the left side plant specimen belong to Klein from Quilon, whereas the middle is from Herb. Wight (Wight cat. n. 457 [a]). The right side specimens of this sheet belong to Herb. Wight, collected from Quilon in October 1835 is not a part of original material.