Seven new species of Miliusa (Annonaceae) from Thailand


T. Chaowasku, Naturalis Biodiversity Center (section NHN), Leiden Univ., PO Box 9514, NL-2300 RA Leiden, the Netherlands. E-mail:


Seven new species of the genus Miliusa are described from Thailand (M. fragrans, M. hirsuta, M. intermedia, M. nakhonsiana, M. sessilis, M. thailandica, and M. umpangensis). A key to the 19 species of Miliusa in Thailand is provided. In addition, the complete taxonomic nomenclature of all known species of Miliusa in Thailand is given, with several new proposed synonyms. The new as well as the known species of Miliusa in Thailand are classified into four morphological groups on the basis of a combination of flower and/or inflorescence position and inner petal morphology proposed earlier.