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Term Definition
Várzea A Portuguese term referring to forest growing in areas periodically indundated by alkaline, café au lait-colored water (also called white water). Várzea
Várzea A Portuguese term referring to forest growing in areas periodically indundated by alkaline, café au lait-colored water (also called white water). Do not confuse white-water with rapidly flowing water of rapids and waterfalls. See Prance (1979) for more information about forests subjected to inundation in Amazonia. Várzea
Vascular Referring to the xylem and phloem.
Vascular bundle In the angiosperms, separate strands of phloem and xylem cells that transport water and nutrients to the leaves and photosynthate (carbohydrates produced by photosynthesis) to other parts of the plant. Vascular bundle
Vascular trace That part of a vascular bundle extending from the vascular cylinder of the stem into the base of the leaf. Vascular trace
Vegetative The reproductive parts of a plant, e.g., the leaves, stems, and roots.
Vegetative reproduction Referring to non-sexual reproduction, by ramets developing from stolons, sprouts from rhizomes, budding from the leaves, tubers, or bulblets. Vegetative reproduction
Veinlet See venule.
Velamen A spongy covering of one or two layers of cells derived from the epidermis and surrounding the roots of Orchidaceae and Araceae. The velamen is usually white and functions to absorb mineral-rich water when it rains.
Velum Membranous flap of tissue; in Siparuna (Siparunaceae), a perforated flap of tissue at the apex of the flower.
Velutinous Velvety; covered with short, soft, spreading hairs.
Venation The network or pattern of vascular tissue (veins) in a leaf or other organ.
Ventral See adaxial.
Ventricose Inflated or swollen on one side.
Venule The ultimate division of the venation of a leaf blade. Venule
Vermiform Wormlike.
Vernation The arrangement of leaves in the bud.
Verrucose Warty.
Versátil Término que se aplica a la antera cuyo punto de inserción con el filamento es en la parte dorsal y más arriba de la base, de modo que se puede mover
Versatile anther A stamen in which the filament is attached to the anther above the base of the anther. Versatile anther
Verticil A whorl of structures; e.g., leaves or bracts.
Verticilada Se refiere cuando tres o más órganos se encuentran dispuestos en el mismo plano e insertos en un mismo nudo alrededor de un tallo; por ejemplo, a las hojas en un tallo. Comparar con alterna y opuesta Verticilada
Verticillaster A pair of cymes arising from the axils of opposite leaves or bracts such that they falsely appear to be in a verticil; e.g., in some Acanthaceae and Lamiaceae.
Verticillate Arising from an axis in groups of more than two at the same node; e.g., leaves along a stem or flowers along a rachis. Same as whorled. Compare with alternate and opposite. Verticillate
Very narrowly elliptic Referring to a two-dimensional shape with the widest point at the middle and tlength to width ratio of 6:1 or more. Very narrowly elliptic
Very widely 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 1.2:1 or less. Very widely oblong
Very widely obovate Very widely 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 1:1 or less. Very widely obovate
Very widely ovate Very widely 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 1:1 or less. Very widely ovate
Vesicle Small bladderlike structure; e.g., the formicaria of some some Melastomataceae.
Vesicular Of or pertaining to vesicles.
Vestigial Rudimentary.
Vestigial stamen An appendage derived directly from a staminode and indirectly from a stamen that no longer has an anther or the anther is small and withered compared to the fertile anthers of normal stamens in the staminal ring or the fodder pollen-producing anthers of staminodes. Vestigial stamen
Vestigial stamen nectaries In the Lecythidaceae, the inner-most appendages at the apex of a fully-coiled, zygomorphic-flowered, neotropical Lecythidaceae that produce nectar which accumulates in the nectar chamber. Nectar-producing vestigial stamens and nectar chambers are only found in species of Couratari and Eschweilera sensu lato. Fully coiled refers to species that have more than one inward coil, i.e., species with two or more coils. Vestigial stamen nectaries
Vestigial stamens An appendage, most likely derived directly from a staminode and indirectly from a stamen, that no longer has an anther or the anther is small and withered compared to the fertile anthers of normal stamens in the staminal ring or the fodder pollen-producing antherodes of staminodes. Vestigial stamens
Vestigial stamens external Referring to an inwardly, once coiled androecial hood that possesses vestigial stamens only on the outside (externally of the coil. This feature is only used to describe species with at single coil. Vestigial stamens external
Vestigial stamens external Referring to an inwardly curved hood that possesses vestigial stamens only on the outside of the coil; e.g., in the Lecythidaceae.
Vestigial stamens internal Referring to an inwardly, once-coiled androecial hood that possesses vestigial stamens on the inside (internally) as well as on the outside of the coil (externally). Vestigial stamens internal
Vestiture The epidermal outgrowths or coverings.
Vexillum The upper, broad petal of Fabaceae. Same as standard, flag, and banner with standard the preferred term. Vexillum
Villous Provided with long, soft hairs.
Vine A nonwoody, climbing plant; some authors do not distinguish between liana and vine. Compare with liana.
Violaceous Blue-red but nearer to blue than to red.
Virgate Long, slender, and straight like some twigs.
Viscid Sticky.
Viscidio En las Orchidaceae, es la parte pegajosa del rostelo que es removida como una unidad junto con el polinio y sirve para unir el polinio con el agente dispersor.
Viscidium In the Orchidaceae, a sticky part of the rostellum that is removed with the pollinia as a unit and serves to attach the pollinia to the dispersal agent. Viscidium
Viscin A sticky substance surrounding the seeds of some plants (e.g., species of Eremolepidaceae and Viscaceae) or found in threads associated with pollen (e.g., Ericaceae and Onagraceae).
Viscous Having a relatively high resistance to flow; thick and usually sticky.
Vitta (plural = vittae) An oil tube in the ovary walls of fruits of Apiaceae.
Vivipary (viviparous) In plants, germinating while still attached to the parent plant. Vivipary (viviparous)