Source : Webster's Revised Unabridged Dictionary (1913)

Melastoma \Me*las"to*ma\, n. [NL., fr. Gr. me`las black + ?
   mouth.] (Bot.)
   A genus of evergreen tropical shrubs; -- so called from the
   black berries of some species, which stain the mouth.

Source : WordNet®

Melastoma
     n : type genus of Melastomataceae; Asiatic shrubs with leathery
         leaves and large purple flowers followed by edible fleshy
         black berries [syn: {genus Melastoma}]