Pharnaceum acidum Hook.f., Hooker's Icon. Pl. 11: t. 1035. 1868
Pharnaceum acidum, Hooker's Icon. Pl. 11: t. 1035. 1868
is basionym for Hypertelis acida in Beibl. Bot. Jahrb. Syst. 97: 58. 1908
is basionym for Kewa acida in Phytotaxa 181(4): 240. 2014