Median, Medial, belonging to the middle.
Medifixed, attached by the middle.
Medullary, belonging to, or of the nature of, pith (Medulla); pithy.
Medullary Rays, the silver-grain of wood, [140], [141].
Medullary Sheath, a set of ducts just around the pith, [140].
Meiostemonous, having fewer stamens than petals.
Membranaceous or Membranous, of the texture of membrane; thin and soft.
Meniscoid, crescent-shaped.
Mericarp, one carpel of the fruit of an Umbelliferous plant, [121].
Merismatic, separating into parts by the formation of partitions across.