Monandria

from The Collaborative International Dictionary of English v.0.48

Monandria \Mo*nan"dri*a\, n. pl. [NL., from Gr. mo`nos alone +
   'anh`r, 'andro`s, a man.] (Bot.)
   A Linnaean class of plants embracing those having but a
   single stamen.
   [1913 Webster]