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-- M --

MACRAME -- Decoratively knotted rope or cord forming a harness-like structure for hanging pots.

MANURE -- An organic material excreted by animals (usually from steer is sold commonly) this is used as a fertilizer and an amendment to enrich the soil.

MICROCLIMATE -- The warmth and humidity of the air in close proximity to a plant. It may differ significantly from the general climate of the room.

MICROCUTTING -- A plant produced by micropropagation -- a modern technique using tiny pieces of the parent plant on a sterile nutrient jelly.

MICROORGANISMS -- Animals and plants that are too small to be seen clearly with the naked eye.

MIST PROPAGATION -- The ideal method of propagation under glass, using automatic mist generators and soil heaters.

MONOECIOUS -- A plant which bears both male and female flowers. (Compare to Dioecious)

MOUTH -- The open end of a bell shaped or tubular flower.

MULCH -- Any loose, usually organic material placed over the soil as a protective covering or for decorative purposes. Common mulches are ground bark, saw dust, leaves or straw.

MULTICOLOUR -- A flower with petals which bear at least three distinctly different colours.

MUTATION -- A sudden change in the genetic make-up of a plant, leading to a new feature. This new feature can be inherited.

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-- N --

NEUTRAL -- Neither acid nor alkaline; pH 6.5-7.5.

NITROGEN CYCLE -- The transformation of nitrogen from an atmospheric gas to organic compounds in the soil, then to compounds in plants and eventually the release of nitrogen gas back into the atmosphere.

NITROGEN FIXATION -- The capture and conversion of atmospheric nitrogen gas into nitrogen compounds, stored in the soil, that can be used by plants.

NODE -- The point on a stem where a leaf or bud is attached.

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-- O --

OFFSET -- A young plantlet which appears on a mature plant. An offset can generally be detached and used for propagation.

OPPOSITE -- Leaf form, where the leaves are arranged in opposite pairs along the stem. Compare alternate.

ORGANIC -- A chemical or fertilizer which is obtained from a source which is or has been alive. Also the general term used for a type of gardening using no chemical or synthetic fertilizers or pesticides.

OSMUNDA FIBER -- The roots of the fern Osmunda regalis, used for making Orchid Compost.

OVER-POTTING -- Repotting a plant into a pot which is too large to allow successful establishment.

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