Category: D
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Disjunct
(Plant geography) with widely separated distribution areas.
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Disintegrating
Falling apart into its constituent parts.
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Discrete
Separate, not joined together. Separate; said of certain eruptions on the skin. Comprised of distinct components; lesions that do not merge together.
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Discontinuity
State with different characters, noncontinuous, with a clear disjunction in variation.
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Discolorous
With two different colours (e.g. the upper surface of a leaf dark green, the lower surface white).
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Discoid
Like a disc or plate: orbicular, with some thickness and parallel faces and with a rounded margin; (In Compositae/Asteraceae) applied to a flower head without ray florets (i.e.with only disc florets). Resembling a disc.
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Disciform or disk-shaped
(In Compositae/Asteraceae) a capitulum with outer filiform florets and inner disc florets. Flat and circular.
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Disc floret
(In Compositae/Asteraceae) the actinomorphic or sometimes bilabiate florets in the centre of the capitulum. The radially symmetrical flower of an Asteraceae inflorescence, different from the bilaterally symmetrical ray florets. One of the tubular florets in a flower-head in the Daisy and Teasel families etc. One of the tiny flowers that make up the disc, or…
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Disc or disk
A ± flat plate-shaped object; disk is the preferred spelling in botany except in the case below, and where describing the general shape. Flattened, rounded part, especially referring to the cushioning tissues between the vertebrae; also called disk. Also intervertebral disc.
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Disarticulating
Falling apart into its constituent parts (e.g. of a lomentum); Separating at a point of articulation or an abscission joint.