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Orbicular
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Se refiere a una estructra de dos dimensiones cuyo perímetro es circular |
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Orbicular
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Referring to a two-dimensional structure with a circular outline. |
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Orbiculate
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A an orbiculate shape is widest at the middle and possesses a length to width ratio of greater than 1.1:1 to less than 1.2:1 Based on Hickey (1973). For more information about leaf morphology and leaf architecture see Ellis et al. (2009). |
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Order
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Referring to a level of taxonomic classification between family and division, i.e., an order is made up of families. The names of orders end in -ales, e.g., Caryophyllales and Lecythidales. |
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Osmophore
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Tissue or a gland, usually associated with flowers, from which aromas emanate. |
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Ostiole
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The opening into the syconium (fig) of Ficus (Moraceae). |
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Outcrossing
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In flowering plants, the production of viable seed by the movement of pollen from one plant to another plant. |
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Outer bark
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Dead tissue surrounding branches, trunks, and roots that includes all tissue from the innermost periderm outward. |
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Outer bark
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All tissue of the trunk and stems produced by the cork cambium, this includes the phelloderm, the cork cambium or phellogen, and the cork or phellum (the dead bark tissue). |
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Outer bark laminated
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The outer bark has distinct lines as seen without magnfication. This feature is seen only by making a slash of the bark. |
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Outer bark smooth
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Bark without fissures, scallops, or roughness. |
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Outer bark thick
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The outer bark is markedly thicker than the inner bark. |
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Outer bark thin
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The outer bark is thinner than the inner bark. |
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Outside
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When used to indicate position, same as abaxial. |
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Ovada
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Se refiere a la forma de una lámina de una hoja u otra estructura, cuando la parte basal es más ancha que la parte apical y cuya relación longitud/ancho es menor que 3:1 |
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Ovario
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Es la parte del gineceo que contiene los óvulos |
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Ovario epígino
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Se refiere a una flor en la que las partes florales están insertas en el borde de un hipantio cupular. Equivalente a ovario inferior. Opuesto a hipógino |
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Ovario hipógino
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Se refiere a una flor en la que las partes florales están insertas hacia la base del ovario o en alguna estructura que está debajo del ovario; por ejemplo, las flores de Ranunculaceae. Equivalente a ovario superior. Comparar con epígino y perígino. |
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Ovario inferior
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Es un ovario en el que las partes florales (cáliz, corola y estambres) están insertas en su parte superior; por ejemplo, en las Rubiaceae y Asteraceae. Equivalente a epígino. Opuesto a ovario superior |
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Ovario perígino
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Se refiere a una flor en la que las partes florales están insertas en el borde de de un hipantio cupular que rodea al ovario |
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Ovario subsuperior
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Es un ovario en el que las partes florales (cáliz, corola y estambres) están insertas en o cerca de la mitad del ovario y parece ser mitad superior y/o mitad inferior |
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Ovario superior
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Es un ovario de una flor hipógina o perígina en el que las partes florales (cáliz, corola y estambres) están insertas abajo o alrededor del ovario; por ejemplo, en las Rubiaceae y Asteraceae. Opuesto a ovario inferior |
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Ovariodisc
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In the Burseraceae, a single, parenchymatous structure representing the ontogenetic fusion of the nectary disc and the pistillode. |
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Ovary
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The part of the gynoecium (=pistil) containing the ovules. |
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Ovary
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The part of the gynoecium containing the ovules. |
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Ovary cross-section
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A section through the ovary made at a right angle to the long or vertical axis of a flower. A term used in the Lecythidaceae to determine the number of locules and to describe the placention of species and genera. |
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Ovary half-inferior
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An ovary of Lecythidaceae that bulges upward at the summit making the ovary appear half-inferior in contrast to an inferior ovary which is truncate at the apex.. |
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Ovary inferior
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An ovary in which the other floral parts (calyx, corolla, and stamens) arise from the summit of the ovary. |
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Ovary summit
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The area at or above the inside of the staminal ring. |
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Ovary summit obconical
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If the summit of the ovary slants upward directly on the inside of the staminal ring (i.e., the summit completely fills the inside of the staminal ring) the summit is obconical. Obconical ovary summits can be narrowly or broadly obconical. |
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Ovary summit plateau-like
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The apex of the ovary sits on a raised plateau characterized by erect sides. |
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Ovary summit truncate
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Appearing to be cut off at the apex, i.e., disregarding the style the summit of the ovary is flat. |
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Ovary summit umbonate
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If the summit of the ovary arches upward directly on the inside of the staminal ring (i.e., the summit completely fills the inside of the staminal ring) the summit is umbonate. See style umbonate. |
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Ovate
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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 1.5:1 to less than 2:1. |
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Ovoid
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Egg-shaped; the three-dimensional version of ovate. |
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Ovule
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The organ that after fertilization becomes the seed. The ovule in angiosperms contains the embryo sac with an egg cell, several other cell types, and is enclosed within the locule of the ovary. |
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Ovule
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The organ that contains the egg and, after fertilization, becomes the seed. The ovules are included within locules of an ovary and are attached to the placenta in different ways that, in some cases, are generic specific. |
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Ovule anatropous
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Referring to a curved downward ovule in such a way that the micropyle is close to the funicular attachment. |
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Ovule bitegmic
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An ovule with two integuments. |
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Ovule campylotropous
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Referring to an ovule in which the axis is at an approximately right angle to its stalk (funicle). |
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Ovule columns
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The number of vertical lines of ovules from the base to the apex of the placenta. The number of horizontal layers of ovules in a locule. A longitudinal section that removes the outside wall of a locule allows this feature to be seen with the most accuracy. It can also be observed in a medial longitudinal section. A longitudinal section that removes the outside wall of a locule allows this feature to be seen with the most accuracy. It can also be observed in cross sections through the placenta. |
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Ovule horientation oblique
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A type |
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Ovule insertion
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Referring to where ovules are inserted along the lower septum as viewed in longitudinal section. |
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Ovule orientation
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The relationship between the direction that an ovule departs from the middle of the placenta in relation to the long axis of the ovary (equals the orientation of the lower/upper septum), as seen in a medial longitudinal section. |
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Ovule orientation horizontal
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Refers to an ovule that departs from the middle part of the placenta at a more-or-less 90 degree angle as seen in longitudinal section. |
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Ovule orientation oblique
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An ovule that departs from the middle part of the placenta at an angle less than 90 degrees as seen in a longitudinal section. The angle is the upper angle of a line drawn through the ovules and intersecting with the vertical axis of the ovary as seen in longitudinal section. |
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Ovule orientation pendulous
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An ovule that departs from a poorly developed placenta that hangs downward at the apex of the locule as seen in a longitudinal section of the ovary. |
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Ovule orthotropous
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Referring to a straight ovule in which the micropyle is positioned in a straight line and opposite the funicular attachment; referring to a growth habit in which the growing apex is oriented vertically. |
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Ovule rows
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The number of horizontal layers of ovules in a locule. A longitudinal section that removes the outside wall of a locule allows this feature to be seen with the most accuracy. It can also be observed in a medial longitudinal section. A longitudinal section that removes the outside wall of a locule allows this feature to be seen with the most accuracy. |
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Ovule unitegmic
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An ovule with one integument. |
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