Hellwigia divaricata (Valeton) Senjaya & A. D. Poulsen comb. nov. Alpinia divaricata Valeton, Nova Guinea 8: 950 1913 (Basionym). Type: Indonesia. Papua, G. M. Versteeg 1657 (lectotype: designated here, L! [L 0360111–114]; isolectotypes: BO! [Sheet No. BO-0080573–575], K! [K 000292447–448]). Alpinia kermesina Ridl., Trans. Linn. Soc. London, Bot. 9: 214 1916. Type: Indonesia. Papua: Mount Carstensz, Camp III, C. B. Kloss s. n. Dec-Jan [1912–1913] (lectotype: designated by Smith, Edin. J. Bot. 47 (1): 48 1990, K! [K 000292445]; isolectotype: BM! [BM 014605305]). Notes. We designated the lectotype of H. divaricata due to the superior quality of the L duplicate. Regarding H. kermesina, Smith (1990 a) lectotypified C. B. Kloss’s collection from Camp III at K, and here we add the isolectotype that we found at BM.

Published as part of Senjaya, Seni Kurnia, Poulsen, Axel Dalberg, Ardiyani, Marlina & Cronk, Quentin C. B., 2025, Reinstatement of Hellwigia Warb. (Zingiberaceae) and its molecular and morphological delimitation, pp. 233-273 in PhytoKeys 261 on pages 233-273, DOI: 10.3897/phytokeys.261.151948