Burmannia decurrens X. J. Li & D. X. Zhang

Burmannia decurrens was collected in Gaozhou, Guangdong Province in China, often growing in Phyllostachys edulis bamboo stands, and is described in Xiaojuan et al. (2020). Three populations in Dawu Mountain are known. Morphologically Burmannia decurrens is closest to B. nepalensis and B. oblonga, due to appearance, size and color of the plants and color of the seeds. B. decurrens is distinct by the combination of following traits: short pedicels, the corolla wings extend further down than the ovary until at least to the half of the pedicel, two whorls of corolla lobes (B. oblonga has only three corolla lobes), as well as connective and seed features. Moreover, inference of nrDNA data suggest a sister position of B. decurrens to the pair of B. nepalensis and B. oblonga.