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Term	Definition
Naked	Referring to a situation in which a part that is usually present is absent, for example, the the translation of gymnosperm is "naked seed" because the ovules and subsequent seeds are not enclosed in an ovary.
Napiform	Turnip-shaped.
Narrowly elliptic	Referring to a two-dimensional shape with the widest point at the middle and a length to width ratio 3:1 to less than 6:1.
Narrowly oblanceolate	Narrowly oblanceolate refers to a leaf, sepal, petal, or other flat structure that is wider above the midpoint and has a length-to-width ratio of greater than 6:1.
Narrowly oblong	Referring to a two dimensional shape in which the greatest width extends throughout a middle zone at least one-third the length of the blade (in this zone the margins are more-or-less parallel) and the length to width ratio is 3:1 to less than 6:1.
Narrowly obovate	Narrowly obovate refers to a leaf, sepal, petal, or other flat structure that is wider above the midpoint and has a length-to-width ratio of 2:1 to less than 3:1.
Narrowly ovate	Narrowly ovate refers to a leaf, sepal, petal, or other flat structure that is wider at the base than at the midpoint, tapers toward the apex, and has a length-to-width ratio of 2:1 to less than 3:1.
Nastic	Referring to plant movement in response to a stimulus.
Naturalized	Referring to an organism that is established and reproducing in areas outside of its native range, e.g., the African tulip tree (Spathodea campanulata) which is native to Africa but naturalized in the Caribbean and elsewhere.
Navicular, naviculiform	Boat-shaped.
Nectar	A sugar solution of varied composition produced by nectaries within flowers to attract pollinators or by extrafloral nectaries to attract insects that protect the plant from predation.
Nectar chamber	A chamber at the apex of the coils of zygomorphic-flowered species or at the base of the staminal tube of most Old World species and in some actinomorphic-flowered genera in the New World, e.g., for example of species of Grias. The nectar that accumulates in the nectar chambers serves as the reward that attracts pollinators to the flowers.
Nectar guide	Markings on a flower that apparently serve to guide pollinators to the nectar. Some are visible to humans, but others are apparent to humans only through ultraviolet photography. Same as honey guide, a term not recommended because bees, not plants, produce honey.
Nectar guide	Markings on a flower that apparently serve to guide pollinators to the nectar source which is the reward they receive for visiting the flower. Some are visible to humans, but others are apparent to humans only through ultraviolet photography. Same as honey guide, a term not recommended because bees, not plants, produce honey.
Nectar ring	In some Passifloraceae, a low narrow ring situated below the operculum.
Nectar spur	A tubular-like projection from the sepals or petals that produce and retain nectar as a reward for pollinators; in many orchids nectar spurs are hollow, tubular projections formed at the base of the lip which contain nectar rewards for pollinators.
Nectariferous disc	A more or less fleshy and elevated part of the receptacle, situated between the perianth and the stamens or between the stamens and the gynoecium, which functions in the production of nectar. Also referred to simply as a disc.
Nectario	Tejido o estructura de las flores que produce néctar
Nectario extrafloral	Estructura que secreta néctar, localizada en alguna otra parte de la planta que no son las flores; por ejemplo, las glándulas que están en los peciolos de muchas Mimosoideae
Nectary	A tissue or structure of flowers that produces nectar.
Nectary (pl. = nectaries)	A nectar-producing structure within the flowers of some genera of neotropical Lecythidaceae.
Nectary scale	A appendage (bracteole-like) located between the flowers of some Capparidaceae upon which the nectary gland (= nectary) is located.
Neighborhood Score	0-5.2 scale of how continuity with surrounding habitat and degree of disturbance
Neotropics (adj.= neotropical)	Referring to that part of the earth in the New World between the Tropic of Cancer at 23 degrees 27 minutes N and the Tropic of Capricorn at 23 degress 27 minutes S. These are the northern and southern latitudes at which the sun can be directly overhead at some time during the year. Same as New World tropics.
Nervadura broquidódroma	Se refiere al tipo de disposición de los nervios en una hoja en la que los nervios secundarios no terminan en el margen, sino que se unen para formar una serie de arcos promimentes a manera de un nervio submarginal. Por ejemplo, en muchas Myrtaceae. Comparar con nervadura eucamptódroma.
Nervadura eucamptódroma	Se refiere al tipo de disposición de los nervios en una hoja en la que los nervios secundarios no terminan en el margen y no se unen para formar una serie de arcos promimentes a manera de un nervio submarginal. Comparar con nervadura broquidódroma.
Nervadura, venación	Disposición o patrón de tejido vascular (nervios) en una hoja u órgano vegetal
Nervio colector	Nervio que recorre muy cerca del margen de una hoja, conectando las venas secundarias; como en muchas especies de Anthurium (Araceae).
Nervio intersecundario, nervios intersecundarios	Nervios que son intermedios en tamaño entre los nervios secundarios y terciarios; a menudo corren paralelos a los nervios secundarios.
Nervio intramarginal, nervios intramarginales	Nervio que está cerca y paralelo al margen de una hoja.
Nervio lateral, nervios laterales	Equivalente a nervios secundarios.
Nervio primario	Ver nervio principal
Nervio principal	Es el nervio primario de una hoja, bráctea, sépalo o pétalo. Equivalente a costa.
Nervio secundario, nervios secundarios	Son los nervios de segundo orden en una hoja. Se generan de los nervios primarios (Hickey, 1973).
Nervio terciario, nervios terciarios	Son los nervios de tercer orden en una hoja. Se generan de los nervios secundarios (Hickey, 1973).
Nervios palmeados	Se refiere a la disposición radial de los nervios en una lámina, en la que los nervios nacen de un punto común cerca de la base
Nervios paralelos	Este término generalmente se aplica a los nervios secundarios y/o terciarios, cuando están dispuestos de manera paralela entre sí. También se aplica a las márgenes de las hojas, sépalos y pétalos.
Nervios reticulados	Se refiere a los nervios de una hoja que tienen forma de una red, generalmente a los nervios de tercer orden
Nervios secundarios	Son aquellos nervios que nacen del nervio primario en una hoja. Equivalente a nervios laterales
New combination (= combination novum.)	A named formed from a previous name. Usually a new combination involves moving a species epithet from one genus to another genus. For example, the species Cariniana decandra Ducke was considered to be a species of Allantoma by Huang et al. ((2008) so they coined the new combination Allantoma decandra (Ducke) Huang et al.. Note that the name of the author of the original name is retained in parentheses as part of the new name.
Niche	The ecological role of a species in a community.
Nigrescent	Becoming black.
Nitid	Shiny or lustrous.
Nocturnal	Appearing at night, e.g., the flowers of a bat-pollinated species.
Nocturnal	Appearing at night, e.g., the flowers of a bat-pollinated species.
Node	The part of the stem where buds, leaves, and or adventitious roots are produced.
Nodes swollen	Refferring to nodes that are larger in size than the stem; swollen nodes are especially characteristic of Piper (Piperaceae).
Nomenclature	Activities associated with naming plants, e.g., for example describing new species and determining synonymy.
Non-cylindrical fruit	A fruit that is as long as broad or is shorter than broad.
Non-cylindrical fruit	A fruit that is as long as broad or is shorter than broad.

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