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Bilabiada, bilabiado
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Estructura que posee dos labios. Usualmente se refiere a los cálices y corolas zigomorfas, como las de las Lamiaceae. |
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Bilabiate
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Two-lipped, usually referring to zygomorphic calyces and corollas such as those found in the Lamiaceae. |
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Bilabiate capitulum (head)
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Inflorescence of Asteraceae with at least some bilabiate flowers. Restricted to tribe Mutisieae. |
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Bilaterally symmetric
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Capable of being divided only into two equal parts; a structure (e.g., a flower) in which a line drawn through the middle will produce a mirror image of one side of the line to the other side of the line. Opposite of actinomorphic; same as bilaterally symmetrical and irregular. |
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Bilaterally symmetrical flower
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A flower capable of being divided into only two equal parts (mirror images) by a line passing through the middle of a flower, i.e., other lines passing the middle of the flower will not give mirror images of one another; same as zygomorphic, monosymmetric, and irregular flowers and opposite of actinomorphic, monosymmetric, radially symmetrical, and regular flowers. This term can refer to other plant parts as well. |
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Bilocular
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Having two locules. |
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Binomial nomenclature
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A system used to name plants devised by Linnaeus in 1753 in his Systema Plantarum in which a two-parted name is given to a species of plant, i.e., the genus and the species. For example, Lecythis ollaria L. is a binomial name assigned by Linnaeus to this species. |
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Binucleate pollen
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Referring to pollen grains that have two nuclei when shed from the anthers. Compare with trinucleate pollen. |
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Biofilm
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A thin layer of living tissue found between a plant body and the substrate. |
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Biota
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The totality of organisms found in a given environment. |
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Bipartite
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Split into two parts. |
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Bipinnada
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Dos veces pinnada; por ejemplo, las hojas de muchas especies de Fabaceae-Mimosoideae. Ver pinnada |
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Bipinnate, bipinnately compound
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Twice-pinnate; e.g., leaves of many species of Fabaceae-Mimosaceae. See pinnate. |
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Biseriado
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Se aplica a un perianto que posee dos verticilos, como cuando una flor posee cáliz y corola. Comparar con uniseriado. |
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Biseriate
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Composed of two whorls or rows; e.g., a perianth with both calyx and corolla or a hair with two rows of cells. Compare with uniseriate. |
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Biseriate perianth
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Referring to a perianth with two whorls or rows; i. e. with both calyx and corolla. Compare with uniseriate. |
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Bisexual flower
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Referring to a flower with a functional androecium and a functional gynoecium. Same as perfect. |
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Bitégmico
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Se refiere a los óvulos con dos integumentos. |
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Biternado
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Dos veces ternado, en grupos de tres. Por ejemplo, las hojas de algunas especies de Serjania (Sapindaceae). |
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Biternate
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Twice ternate, in two groups of three each; e.g., the leaves of some species of Serjania (Sapindaceae). |
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Bladder
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A thin-walled, inflated, small sac found in species of Utricularia. The function of these sacs is to capture very small organisms, such as mosquito larvae, which are decomposed and the nutrients (e.g., nitrogen) released are then assimilated by the plant. |
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Bladder-like
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Sac-like, inflated structures that surrounds seeds some structure, e.g., the fruits of plants such as Staphylea trifolia. |
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Blade
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The expanded part of the leaf supported by the petiole |
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Blade
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The expanded portion of a leaf or other structure such as a petal; when it is a leaf the stalkt is called the petiole and when it is a petal the narrowed part is the claw. Same as lamina. |
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Blaze
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A slanted cut through the bark that reveals charcters useful in field identification of trees. |
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