Category: A
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Adventitious
(Of buds) those produced elsewhere than normal (such as leaf axils, shoot apices) (e.g. those appearing with wounds); (Of roots) lateral roots coming from organs other than main root system, such as the stem. Roots or buds growing from places other than normal. On the outside or in an unusual place. Not inherited; accidental; acquired…
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Aduncate
Twisted, hooked [obscure term, not recommended].
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Adpressed
Lying flat for its whole length (e.g. hairs on leaf surface). Pressed close to another organ, usually refers to hairs when pressed close to stem or leaves or fruits held close to the stem, as in many species of the Cabbage family. Bent forward and pressing closely against the surface from which they arise.
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Adnot
Annotated on specimen sheet; or a mention of a species, but not as a main heading.
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Adnate
Attached to, surface to surface; usually said of different organs or structures (e.g. stamen adnate to a petal). United to a member of another order. Said of an anther when fixed by its whole length to the filament. (Of gills) Attached to the stem over most of the gills’ height, also bluntly attached. Fused with…
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Admissible
In nomenclature, a name or epithet allowed under the current rules. A legal term referring to whether evidence (such as a witness testimony, medical record entry, or blood test result) will be allowed to be presented to the judge or jury to prove a legal case. There are specific rules of evidence governing admissibility. For…
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Admedial
(In leaf venation) towards the axis of symmetry of the leaf.
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Adjacent-ligular
Germination type where the shoot is carried out of the seed within the very short ligule of the cotyledon (specialist term used in Palmae).
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Adherent
(Of different organs) sticking to, attached but not fused. Sticking to, or growing fast to, another body.
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Adenose
Glandular [old-fashioned term, not recommended].