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leaf mold,crumbly brown humushumus
, organic matter that has decayed to a relatively stable, amorphous state. It is an important biological constituent of fertile soil. Humus is formed by the decomposing action of soil microorganisms (e.g.
..... Click the link for more information. typical of forest floors. It is composed of decayed leaves and other plant material mixed with soil.
leaf mold[′lēf ‚mōld]
A soil layer or compost consisting principally of decayed vegetable matter.