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-phore (-phorus)
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A suffix meaning bearing, e.g. a gynophore which is a stalk that bears the gynoecium (chracteristic of Capparidaceae) and androgynophore which is a stalk bearing both the androecium and the gynoecium (characteristic of Passifloraceae). |
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a-
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A prefix meaning “without,” e.g., a leaf blade that does not have symmetry. |
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Abaxial
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Referring to the side of an organ situated away from the axis; i.e., the morphologically lower surface of a leaf. Opposite of adaxial and same as ventral, under, and lower surface. |
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Abaxial
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The lower part of a structure such as a leaf, i.e., that part of a structure that faces away the main axis to which it is attached. For example, if a leaf is pushed upward and against a stem the surface facing away from the stem is the abaxial surface. |
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Acanthophyll
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A spine derived from a modified leaf or leaflet; e.g, in Desmoncus spp. (Arecaceae). |
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Acantófilo
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Hoja u hojuela modificada en forma de gancho o espina; por ejemplo, en Desmoncus spp. (Areaceae) |
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Accessory fruit
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A type of fleshy fruit that includes some other part of the flower in addition to that which is derived from the ovary. Accessory fruits are usually indehiscent. Examples of this type of fruit are apples, figs, and strawberries. |
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Achene
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A small, dry, indehiscent, one-seeded fruit derived from a superior ovary with the seed attached to the fruit wall at one point only; e.g., species Ranunculus and Carex. Compare with cypsela. |
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Acrodromous
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A leaf venation pattern in which three or more primary veins orginate from a point (usually at the attachment with the petiole) and run in convergent arches to the apex of the blade. |
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Acronym
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An acronym is a code assigned by Index Herbariorum for the herbaria of the world with more than 5,000 collections; for example, the codes for The New York Botanical Garden (= NY), The Royal Botanic Gardens Kew (= K), and the Jardim Botânico do Rio de Janeiro (= RB) are provided. |
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Actinomorfa
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Cuando una estructura al ser dividida en más de un plano, resulta en dos partes iguales. Este término usualmente es aplicado a las flores, e.g. en Gustavia (Lecythidaceae) y a las especies de Myrtaceae. Actinomorfo es lo mismo que regular y radialmente simétrico. Es opuesto a zigomorfo. |
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Actinomorphic flower
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A flower, capable of being divided, by more than one line passing through the middle of the flower, into two equal parts that are mirror images of one another; e.g., in Gustavia (Lecythidaceae), species of Myrtaceae, and species of Rubiaceae. Same as polysymmetric, radially symmetrical, and regular flowers and opposite of zygomorphic, monosymmetric, bilateral, and irregular flowers. This term can refer to other plant parts as well. |
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Acuática, acuático
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Que crece o habita en el agua. |
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Aculeus (Latin, pl. = aculei, adj. = aculeate)
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A prickle or a spine. |
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Acuminate
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Gradually tapering to an acute apex with the sides being concave. |
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Acute
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Sharp; usually referring to the apex of a flattened structure (such as a leaf) in which the two sides are straight and, when they meet, form an angle that is always less than 90°. |
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Adaxial
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Referring to the side of an organ facing toward the axis; i.e., the morphologically upper surface of a leaf. Opposite of abaxial and same as dorsal surface. |
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Adaxial
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The upper part of a structure such as a leaf, i.e., that part of the structure that faces toward the main axis to which it is attached. For example, if a leaf is pushed upward and against a stem the surface facing toward the stem is the abaxial surface. |
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Admedial
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Toward the axis of any structure, especially used to describe leaf venation. Opposite of exmedial. |
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Admedial
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Toward the axis of any structure, especially used to describe leaf venation. |
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Admedial
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Dirigido hacia el eje de una estructura. Término especialmente utilizado para describir el patrón de venas en una hoja. Opuesto a exmedial. |
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Adnate
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Referring to the attachment of one type of structure to another type of structure, as the stamens to the corolla or the stipules to the petiole. |
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Adventitious
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Referring to an organ arising from an unusual position, especially buds or roots; e.g., the aerial roots of species of Araceae. |
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Adventitious roots
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Roots arising directly from a part of the plant other than the primary root, e.g., the roots that arise from the base of the stem of a corn plant (Zea mays) but adventitious roots can also arise from other parts of a plant. |
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Adventive
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Referring to a plant or animal that has become established in a region to which it is not native but does not cause noticible economic or ecological harm. |
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