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Very widely oblong
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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. |
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Very widely obovate
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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. |
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Very widely ovate
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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. |
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Vesicle
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Small bladderlike structure; e.g., the formicaria of some some Melastomataceae. |
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Vesicular
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Of or pertaining to vesicles. |
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Vestigial
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Rudimentary. |
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Vestigial stamen
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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. |
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Vestigial stamen nectaries
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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. |
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Vestigial stamens
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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. |
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Vestigial stamens external
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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. |
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Vestigial stamens external
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Referring to an inwardly curved hood that possesses vestigial stamens only on the outside of the coil; e.g., in the Lecythidaceae. |
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Vestigial stamens internal
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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). |
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Vestiture
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The epidermal outgrowths or coverings. |
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Vexillum
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The upper, broad petal of Fabaceae. Same as standard, flag, and banner with standard the preferred term. |
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Villous
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Provided with long, soft hairs. |
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Vine
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A nonwoody, climbing plant; some authors do not distinguish between liana and vine. Compare with liana. |
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Violaceous
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Blue-red but nearer to blue than to red. |
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Virgate
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Long, slender, and straight like some twigs. |
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Viscid
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Sticky. |
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Viscidio
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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. |
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Viscidium
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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. |
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Viscin
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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). |
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Viscous
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Having a relatively high resistance to flow; thick and usually sticky. |
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Vitta (plural = vittae)
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An oil tube in the ovary walls of fruits of Apiaceae. |
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Vivipary (viviparous)
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In plants, germinating while still attached to the parent plant. |
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