Amorphophallus wasa Naive, K.Z.Hein & Hett., is described and illustrated as a species new to science from the Sagaing Region, Myanmar. It is morphologically similar to A. saraburiensis Gagnep., but can be easily distinguished by its unilocular ovaries and lack of staminodes between pistillate and staminate zones. A detailed description, colour plates, phenology, distribution map, provisional conservation status and a key to the Amorphophallus species from Myanmar are provided. In addition, A. elatus Hook.f. is reported as a newly recorded species for Myanmar, and the name A. corrugatus N.E.Br. is newly synonymized under A. kachinensis Engl. & Gehrm.
A species new to science, Alocasia epilithica Serebryanyi, K.Z.Hein & Naive discovered in Tanintharyi Region, Myanmar, is herein described and illustrated. This new species was also found to occur in the provinces of Nakhon Si Thammarat and Surat Thani of Peninsular Thailand. Detailed description, color plates, discussion of similar taxa, phenology, distribution map and a preliminary conservation status assessment are provided.
A species new to science, Typhonium sagaingense from Sagaing Region, Myanmar, is herein described and illustrated. It is similar to T. albidinervum and T. filiforme but differs in having following characters: trifoliolate leaves, spadix slightly shorter than spathe, fewer yellow staminodes arranged in one whorl and pink appendix. Detailed descriptions, colour plates, illustration, distribution, phenology and ecology of the new species are provided, including a key to all Typhonium occurring in Myanmar.
Recent fieldwork in Monywa District, Sagaing Region, Myanmar resulted in the discovery of a species new to science, Typhonium edule, which is herein described and illustrated. It superficially resembles T. lineare but differs in having wider spathe diameter, spathe limb 3–4 times longer than the tube, downwardly curved sickled-shaped staminodes and strongly stipitate appendix. Detailed description, colour plates, distribution map, phenology and ecology of this new Typhonium species are provided below.
New species, new records and lectotypifications in Millettia are presented. Millettia densiflora, a new species discovered from Laos, is described and illustrated. Additionally, we provide a detailed morphological description, illustrations, colour plates, distribution map, phenology, conservation status and a discussion of its closest affinity. We further present first reports for Thailand (Millettia cana, M. puerarioides and M. velutina), and Laos (M. velutina). Lectotypes are designated for Millettia cana, M. multiflora, M. oraria and M. velutina. The full descriptions of Millettia cana and M. multiflora are provided for the first time based on fresh specimens.
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