Category: N
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Nutating
The revolutions of the growing tip.
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Nutant
Nodding.
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Nut
A one-seeded indehiscent fruit with a hard dry pericarp (the shell) that is derived from a one-loculed ovary. A relatively large, dry, indehiscent fruit with a hard wall, usually containing only one seed. The homely word nut is the country cousin of some fancy, city-slicker words, including, nucleus, nuclear and nougat. All these words ultimately…
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Numerous
Many, more than ten.
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Nucleotide
A chemical compound consisting of a heterocyclic base, a sugar, and one or more phosphate groups, these compounds form the structural units of DNA. An ester of a nucleoside and phosphoric acid. Nucleotides are nucleosides that have a phosphate group attached to one or more of the hydroxyl groups of the sugar (ribose or deoxyribose).…
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Nucellus
The central part of the ovule, inside the integuments, containing diploid maternal tissue that gives rise to the haploid tissue of the female gametophyte.
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Nucamentaceous
With a one-seeded indehiscent nut-like fruit [obscure term].
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Notophyll
Leaf size class proposed by Raunkiaer (1934) and modified by Webb (1959): between 2026 and 4500 mm2.
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Notomorph
Hybrid form.
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Nothotaxon
Unit of classification for hybrids, e.g. nothospecies or nothogenus.