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Seed
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The mature ovule that contains the embryo within the seed coat. |
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Seed coat (= testa)
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The outer covering of a seed. Same as testa. |
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Seed coat (= testa)
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The outer covering of a seed derived from the integuments of the ovule. |
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Seed dormancy
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Referring to seeds that do not germinate until some time after they are dispersed. Many species of secondary forests, e.g. species of Cecropia, may remain dormant for years until the right conditions become available for their germination. |
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Seed germination lateral
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The seed germinates from the side. |
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Seed germination terminal
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The seed germinates at the ends. |
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Seed wing circumferential
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A wing completely surrounding the circumference of the seed. |
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Seed wing unilateral
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The seeds of species of Allantoma and Cariniana have wings that arise from one side. |
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Seedling
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A young plant that develops from a germinating seed, i.e., including the embryo, cotyledons (if they are present), and the first true leaves (eophylls). |
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Seedling
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Referring to a stage in a plant's development between seed germination and the production of eophylls (= the first true leaves). |
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Self-compatible
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Referring to a plant in which pollen from a plant can fertilize eggs of the same plant; i.e., a plant that can be self-fertilized. Compare with self-incompatible. |
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Self-incompatible
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Referring to a plant in which pollen from a plant cannot fertilize ovules of the same plant. Compare with self-compatible. |
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Self-pollination
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Pollination of a flowers with pollen from the same flower or from another flower on the same plant. |
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Semelpary (semelparic or semelparous)
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Referring to plants that die after a single episode of flowering and fruiting; e.g., many bambusoid Poaceae and Tachigali (Fabaceae). Same as hapaxanthic and semelparic and opposite of iteroparic, pleionanthic, or polycarpic. |
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Semi-
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A prefix meaning half, partly, or almost. |
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Semilla
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El óvulo maduro que contiene al embrión |
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Semilla alada en circunferencia
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Se refiere a una semilla rodeada por un estructura similar a un ala |
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Semilla unilateralmente alada
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Se refiere a una semilla que presenta una estructura como ala o proyección delgada y plana hacia un lado |
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Seminiferous
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Bearing seeds. |
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Senesce
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To age. |
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Sensu lato
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A Latin term meaning in the broad sense; e.g., the legumes when considered as a single family rather than three separate families or a species with considerable variation indicating that more than one species might be included in the species concept. |
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Sensu stricto
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A Latin term meaning in the narrow sense; e.g., the genus Cassia when Chamaecrista and Senna (Fabaceae) are excluded. |
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Sepal (sepals)
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A segment of the calyx. |
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Sepaline
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Referring to sepals. |
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Sepaline tails
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Long extensions of the sepals. |
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Sépalo
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Cada uno de los segmentos que componen el cáliz |
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Sepaloid
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Resembling a sepal. |
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Septal arms present
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An extension from the apex of the lower placentae that appears like arms in medial longitudinal section but in an entire flower are conical around the lower part of the stylar chamber. |
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Septal arms vestigial
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Lack of an extension from the apex of the lower placentae that appears like arms in medial longitudinal section but in an entire flower are conical around the base of the stylar canal. |
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Septal nectary
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A nectary developing in the septal regions of the ovary. |
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Septal region
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The part or parts of the ovary associated with the septa. |
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Septal unit
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The shape of a section of a septum, including both the septal unit stalk and the septal unit head, as viewed in a cross section through the placenta. |
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Septal unit anchor-shaped
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A type of septal unit headin which the sepal unit expands at the apex to form a broad and rounded head that appears somewhat like an anchor. |
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Septal unit arrowhead-shaped
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A triangular septal unit head that is extended from each side of the base of the septal head proper to form what looks like an arrowhead when viewed in a cross-section of the ovary at slightly below the apex of the placenta. |
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Septal unit double bit axe-shaped
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A type of septal unit which septal unit that possesses a truncate septal unit head and two basal extension and looking like a double bit axe in cross section. |
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Septal unit head
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The expanded apical part of a septal unit which includes the head proper and many include two septal unit head extensions. |
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Septal unit head extension
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Referring to basal extensions from a septal unit head to which the ovules are attached. |
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Septal unit spear-shaped
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A septal unit shape with septal unit head triangular and the base ob-triangular such that it appears spear-shaped as seen in a cross-section of the ovary. In this type of septal unit, all sides of the septal unit head are slanted in orientation but the basal sides are usually, but not always, shorter than the apical sides. Species that have equal sides, i.e. appearing like a diamond, are also classified as spear-shaped. |
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Septal unit stalk
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The part of the septum from its departure from the wall of the locule to the point at which it expands into the septal unit head. |
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Septate
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Referring to a structure divided into chambers by partitions (septa); e.g., septate trihcomes. |
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Septicidal capsule
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A dry, dehiscent fruit that opens along the septum. |
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Septifragal capsule
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Referring to a type of fruit dehiscence in which the valves break away from the septa, e.g., in species of Paullinia (Sapindaceae). Same as marginicidal dehiscence. |
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Septum (pl. = septa)
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A wall-like partition of a locule of an ovary that divides the ovary into chambers called locules. The septae are made up of the walls of adjacent carpels |
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Septum (plural = septa)
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A a wall-like partition of a locule of an ovary or of a fruit (then same as dissepiment and preferred over it). |
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Sericeous
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Silky; i.e., with long, soft, slender, somewhat appressed hairs. |
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Serpentine
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Refers to a group of minerals that restricts the ability of most plants to grow in soils where they are abundant because of the high concentration of metals such as nickel, manganese, and chromium. There is a correlation between serpentine soils and high endemism, i.e., plant species limited to growing in serepentine rich soils. |
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Serrada, serrado (diminutivo = serrulada, serrulado)
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Se refiere a la láminas que tienen márgenes con dientes agudos orientados hacia el ápice. Compárese con dentada y erosa. |
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Serrate (diminutive = serrulate)
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Having a margin with sharp teeth oriented toward the apex of the structure bearing them. |
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Sésil
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Se aplica a hojas, inflorescencias y flores que carecen de peciolos, pedúnculos o pedicelos, respectivamente |
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Sessile
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Stalkless, as in some leaves, inflorescences, and flowers. Same as petiole absent. |
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