Monospermous, one-seeded.

Monstrosity, an unnatural deviation from the usual structure or form.

Morphology, Morphological Botany, [9]; the department of botany which treats of the forms which an organ may assume.

Moschate, Musk-like in odor.

Movements, [149].

Mucronate, tipped with an abrupt short point (Mucro), [54].

Mucronulate, tipped with a minute abrupt point; a diminutive of the last.

Multi-, in composition, many; as Multangular, many-angled; Multicipital, many-headed, &c.; Multifarious, in many rows or ranks; Multifid, many-cleft; Multilocular, many-celled; Multiserial, in many rows.

Multiple Fruits, [118], [124].

Muricate, beset with short and hard or prickly points.