M

Macroclimate [ Ecology - Climatology ]

Macronutrient [ Botany ]

Magnesium [ Chemistry - Physiology ]

Male [ Biology]

Major elements [ Agronomy ]

Male flower [ Biology]

Male plant [ Botany ]

Male sterility [ Botany ]

Mamilla - Mammillate [ Botany -  Biology ]

Mammals [  Biology ]

Manganese [ Chemistry - Physiology ]

Manteinance [ Chemistry - Physiology ]

Margin [ Botany - Biology ]

Marginate [ Botany ]

Mat forming [ Botany - Habit of growth ]

Material [ Biology - Physics ]

Mating [ Biology - Genetics ]

Mattoral Tamaulipeco [ Ecology ]

Mattoral (or Matorral) [ Ecology ]

Maturity - Maturation [ Biology - Botany ]

Mealy bugs [ Entomology ]

Mechanic - Mechanical [ Botany - Biology ]

Mechanism [ Biology ]

Mediterranean climate [ Ecology - Climatology ]

Medium [ Biology - Horticulture - Tissue culture ]

Meiosis [ Biology ]

Melittophily [ Botany ]

Membrane [ Botany - Anatomy ]

Meristem [ Botany ]

Meristematic cell [ Botany ]

Mesebrianthemaceae [ Botany ]

Mesic [ Ecology ]

Mesocarp [ Botany ]

Mesophyte [ Botany - Ecology ]

Metabolism - Metabolic [ Physiology ]

Meteorology

Microbe - Microbial [ Biology ]

Microclimate - Microclimatic [ Ecology ]

Microhabitat [ Ecology ]

Micronutrients [ Botany ]

Microorganism [ Biology ]

Micropropagation [ Horticulture ]

Micropyle - Micropylar [ Botany ]

Microspore [ Botany ]

Midstrip [ Botany ]

Midvein (or Midrib) [ Botany ]

Mildew   [ Biology - Horticulture - Phytopathology ]

Mimesis - Mimicry [ Ecology -Biology ]

Mineral  [ Geology ]

Mineral deficiency [ Physiology - Agronomy - Phytopathology ]

Mineral salt [ Physiology – Nutrition - Agronomy ]

Mineral substratum [ Botany -Agronomy - Pedology ]

Mite [ Horticulture - Zoology ]

Mitosis [ Biology ]

Mixed breed [ Genetics ]

Mixed bud [ Botany ]

Modification - Modified [ Botany - Biology]

Modified leaves [ Botany ]

Moisture  [ Botany - Agronomy - Meteorology - Physiology ]

Moisture excesses [ Horticulture ]

Molecule [ Chemistry ]

Molecular systematics [ Taxonomy ]

Molybdenum [ Chemistry - Horticulture]

Monocarpic [ Botany ]

Monocotyledon [ Botany ]

Monoecious [ Botany - Biology]

Monomorphic [ Botany - Morphology ]

Monophyletic [ Taxonomy ]

Monoploid [ Genetics ]

Monopodial [ Botany ]

Monospecific [Taxonomy - Ecology - Agronomy - Botany - Biology ]

Monotypic [Taxonomy ]

Monsoon [ Climatology ]

Monsoon season [ Climatology ]

Monstruosity - Monstrous [ Botany ]

Montane - Mountainous  [ Ecology ]

Morphology [ Botany - Biology]

Mortality [ Biology - Ecology ]

Moth [ Entomology ]

Moth pollination[ Botany ]

Mother [ Biology ]

Mould [ Phytopathology]

Mucilage - Mucilaginous [ Botany - Biochemistry ]

Mucronate [ Botany ]

Mud - Muddy [ Horticulture - Pedology ]

Mulching [ Horticulture ]

Multicellular [ Biology ]

Multihybrid [ Biology ]

Multiple fruit [ Botany ]

Mutagen [ Biology - Genetics ]

Mutant [ Biology - Genetics ]

Mutation [ Genetics ]

Mycology [ Botany -  Natural sciences ]

Mycoplasmas [ Phytopathology - Biology]

Mycorrhiza [ Botany - Ecology ]

Myophily [ Botany ]

Myrmecochory [ Botany ]

Myrmecophily [ Botany ]