Taxonomic studies of <i>Araceae</i> in Myanmar IV: A new species, a new record and a new synonym for the genus <i> Amorphophallus</i>

Amorphophallus wasa Naive, K. Z. Hein &amp; 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. &amp; Gehrm.