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

Prasanth, Arun & Sardesai, Milind M., 2024, Nomenclatural notes on type materials of fourteen names in Lythraceae, Phytotaxa 660 (3), pp. 243-258 : 251

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.

Figures

FIGURE 9. Second-step lectotype of Hydrolythrum wallichii Hooker f. (K00729665). © The Board of Trustees of the Royal Botanic Gardens, Kew.