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budding

Overview page. Subjects: Biological Sciences.

1 (in biology) A method of asexual reproduction in which a new individual is derived from an outgrowth (bud) that becomes detached from the body of the parent. In animals the...

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bud-fission

Overview page. Subjects: Plant Sciences and Forestry.

A type of budding that occurs in certain types of fungi: the ‘bud’ or daughter cell is separated from the parent cell by a septum.

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coppice shoot

Overview page. Subjects: Plant Sciences and Forestry — Ecology and Conservation.

A shoot that arises from a bud at the base of the stool of a tree that has been cut near the ground.

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geophyte

Overview page. Subjects: Biological Sciences.

A plant life form in Raunkiaer's system of classification (see physiognomy). Geophytes are herbaceous plants in which the perennating buds are below ground, giving rise to corms, bulbs, or...

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leaf

Overview page. Subjects: Biological Sciences.

A flattened structure that develops from a superficial group of tissues, the leaf buttress, on the side of the stem apex. Each leaf has a lateral bud in its axil. Leaves are arranged in a...

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leaflet

Overview page. Subjects: Chemistry.

Each leaf-like part of a compound leaf that is not subtending a bud in the axil of its petiole.

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oak-apple gall

Overview page. Subjects: Plant Sciences and Forestry — Ecology and Conservation.

A gall formed in Quercus robur by the unisexual generation of the wasp Biorrhiza pallida. Wingless females arise from root galls and climb the trunk of the tree in spring to lay many eggs...

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perennating bud

Overview page. Subjects: Plant Sciences and Forestry — Ecology and Conservation.

The vegetative means whereby biennial and perennial plants survive periods of unfavourable conditions. The aerial parts die back to a minimum at the onset of unfavourable conditions, and...

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stem

Overview page. Subjects: Biological Sciences.

In a vascular plant, the part of the plant that bears buds, leaves, and flowers. It forms the central axis of the plant and often provides mechanical support. Most commonly it is above...

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tuber

Overview page. Subjects: Plant Sciences and Forestry.

A swollen stem or root that functions as an underground storage organ. Stem tubers (in potatoes, for example) often produce buds along the stem from which aerial stems arise the following...

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valvate

Overview page. Subjects: Plant Sciences and Forestry.

Applied to the arrangement (aestivation) of sepals or petals in a flower bud such that these parts meet at their edges and do not overlap. Where they overlap, the aestivation is described...

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vernation

Overview page. Subjects: Plant Sciences and Forestry.

The arrangement of bud scales or young leaves in a shoot bud. They may be rolled lengthwise (circinate); pleated lengthwise (plicate); rolled from the sides to the centre of the underside...

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wound response

Overview page. Subjects: Plant Sciences and Forestry.

The metabolic activity that follows the disruption of plant structure by external forces, e.g. by wind or freezing. This activity is controlled by hormones in higher plants and typically...

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