Part 28 (2/2)

=Contorted.= Twisted together.

=Corolla.= The inner whorl of floral envelopes.

=Cotyledon.= One of the parts of the embryo performing in part the function of a leaf, but usually serving as a storehouse of food for the developing plant.

=Crossers.= Narrow wooden strips used to separate the material on kiln cars.

=Cross-grained.= Wood is cross-grained when its fibres are spiral or twisted.

=Dapple.= An exaggerated form of mottle.

=Deciduous.= Not persistent; applied to leaves that fall in autumn and to calyx and corolla when they fall off before the fruit develops.

=Definite.= Limited or defined.

=Dew-point.= The point at which water is deposited from moisture-laden air.

=Dicotyledon.= A plant whose embryo has two opposite cotyledons.

=Diffuse.= Widely spreading.

=Disk.= A circular, flat, thin piece or section of the tree.

=Duramen.= Heartwood.

=Embryo.= Applied in botany to the tiny plant within the seed.

=Enchinate.= Beset with p.r.i.c.kles.

=Expansion.= An enlargement across the grain or lengthwise of the wood.

=Fibres.= The thread-like portion of the tissue of wood.

=Fibre-saturation point.= The amount of moisture wood will imbibe, usually 25 to 30 per cent of its dry-wood weight.

=Figure.= The broad and deep medullary rays as in oak showing when the timber is cut into boards.

=Filament.= The stalk which supports the anther.

=Fine-grained.= Wood is fine-grained when the annual rings are close together or narrow.

=Germination.= The sprouting of a seed.

=Girdling.= To make a groove around and through the bark of a tree, thus killing it.

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