Rotala wallichii (Hook.f.) Koehne (1880: 154)

= Hydrolythrum wallichii Hooker f. (1867: 777) .

Lectotype (Step I: Vide Cook (1979: 29); Step II: designated here):— MYANMAR (Burma). Dawei (Tavoy), 1827, Gomez, in Herb Wallich 9059 (K, K00729665!, isolectotype: K, K001132153!, K001132154!, K00729666!, K00729667!, G, G00227383!, G00227391!).

Figure 9

Notes: — Koehne (1880) described the name R. wallichii based on Hydrolythrum wallichii Hook.f. (1867), citing Gomez’s collection included in Wallich catalogue (no. 9059) from Tavoy. The Wallich’s specimen was then identified as the type by Cook (1979), citing “Type: Burma, Tavoy, 1827, Gomez, Wall. cat. no. 9059 (holotype: K-w; isotypes: K, G, LE)” in his revision. This constitutes a first step lectotypication as at K we were able to find five specimens of Wallich 9059 (K001132153, K001132154, K00729665, K00729666, and K00729667). Following ICN Articles 9.3 and 9.17 (Turland et al. 2018), we hereby designate K00729665 as the lectotype which constitutes the second step lectotypification.