Goniothalamusroseipetalus and G.sukhirinensis (Annonaceae): Two new species from Peninsular Thailand

PhytoKeys. 2021 Oct 25:184:1-17. doi: 10.3897/phytokeys.184.73210. eCollection 2021.

Abstract

Two new Goniothalamus species (Annonaceae), G.roseipetalus sp. nov. and G.sukhirinensis sp. nov., are described from the southern limits of Peninsular Thailand (Narathiwat and Yala Provinces). Both new species resemble G.macrophyllus, G.scortechinii and G.uvarioides. The addition of these two new species brings the total number of Goniothalamus species in Thailand to 27. Separate identification keys are provided for flowering and fruiting specimens of the Thai species.

Keywords: Annonaceae; Goniothalamusroseipetalus; Goniothalamussukhirinensis; Thailand; new species.