Mammose, breast-shaped.
Marcescent, withering without falling off.
Marginal, belonging to margin.
Marginate, margined with an edge different from the rest.
Marginicidal dehiscence, [123].
Maritime, belonging to sea-coasts.
Marmorate, marbled.
Mas., Masc., Masculine, male.
Masked, see [personate].
Mealy, see [farinaceous].