Displaying 1201 - 1275 out of 3058 Object(s)

Term Definition
Family Referring to a level of taxonomic classification between genus and order, i.e., a family is made up of genera and an order is made up of families; family names end in -aceae (Brassicaceae, Cucurbitaceae, etc.)
Fanerocotilar Tipo de germinación de una semilla en la que los cotiledones emergen de la cubierta. Comparar con criptocotilar.
Farinaceous Containing starch or starchlike substances.
Farinose With a mealy appearance.
Fasciation (adj. = fasciated) A growth form in which parts of stems, rachises, or flowers of a plant fuse together to form flattened, anomolous forms. Fasciation (adj. = fasciated)
Fascicle (Fasciculate) Arranged in a tight bundle or cluster Fascicle (Fasciculate)
Fascicle (fasciculate) A tight cluster or bundle of roots, stems, leaves, flowers, or other structures arising from the same point; for example, the inflorescences of Grias cauliflora are fasiculate. Fascicle (fasciculate)
Fascículo Un denso grupo de flores, hojas, tallos, raíces u otras estructuras que nacen o se originan de un mismo punto común y sin un eje central que las soporte; por ejemplo, las inflorescencias de Grias cauliflora (Lecythidaceae)
Faucal appendages Scalelike structures located in the throat of the corolla of species of Boraginaceae subfamily Boraginoideae.
Félem Capa de células suberizadas producidas hacia el exterior por el cambium del corcho.
Felodermis Capa de parénquima producida hacia el interior por el cambium del corcho.
Female flower Referring to unisexual flowers with functional gynoecia but without functional stamens (staminodes may be present). Same as staminate flower. Female flower
Fenestrate Pierced with holes; e.g., the trunk of Minquartia guianensis (Olacaceae) or leaves of Monstera spp. (Araceae). Fenestrate
Fenología de cornucopia Estrategia de floración en la que una inflorescencia produce abundantes flores cada día, este proceso tiene una duración relativamente larga, que va desde desde pocas semanas hasta más de un mes.
Fern life cycle Referring to the alternation of generations between the gameophyte (haploid) and sporophyte (diploid) stages of a fern. The most conspicuous stage of the life cycle is the sporophyte generation whereas the gametophyte generation is small and inconspicuous. Fern life cycle
Ferruginous Rust-colored, often referring to the color of the pubescence. Ferruginous
Fertilization In botany, the union between a sperm cell released by a pollen grain and an egg cell in an ovule of a flower. This union results in the development of the embryo within a seed. Fertilization
Festoon (adj. festooned) A type of leaf venation in which the secondary veins do not terminate at the margin but join to form a series of prominent arches that form a submarginal nerve and, in addtion, the secondary veins possess closed loops toward their apices. Based on Hickey, 1973. For more information about leaf venation see Ellis et al, 2009. Festoon (adj. festooned)
Fetid (foetid) Bad smelling.
Few In botanical descriptions, meaning 10 or fewer in number.
Fiber An elongated, usually tapering, sclerenchyma cell found in wood.
Fibrous roots A root system characteristic of monocots in which all of the branches are approximately equal in diameter. Compare with taproot.
Field notebook A notebook in which the data to be used for making plant labels are recorded. Today, the principal purpose of a field notebook is for providing the data for entering into a database. The labels are then generated directly from the database. A field notebook serves as a permanent record of the collections a collector makes throughout his or her career. The authors prefer a notebook that resists rain such as the "Rite in the Rain" all-weather Jounal, No. 390F." For more information about plant collecting see Tropical Plant Collecting: From the Filed to the Internet. This book can be purchased at: http://tecceditora.com/ or Amazon.com. Field notebook
Field press A portable plant press used to hold collections shortly after they have been collected and for the rest of the time a collector is igatjhering specimens. The specimens are numbered and described in the field book, arranged between newspapers, the newspapers are numbered with the number listed in the field book, and then placed in the field press until they are ready to be placed in the drying press. A field press can be as simple as two end boards tied together with two ropes, but the authors prefer more sophisticated presses that keep the specimens dry if it rains and one that can be easily closed with velco straps. For more information about plant collecting see Tropical Plant Collecting: From the Filed to the Internet. This book can be purchased at: http://tecceditora.com/ or Amazon.com. Field press
Fig A hollow, fruitlike receptacle lined by tiny achenes, the characteristic inflorescence of figs (Ficus spp., Moraceae). Also called a syconium. Fig
Filament The stalk of the stamen terminated by the anther; in Orchidaceae, the sterile portion of the stamen forming part of the column. Filament
Filament stalk A constricted area at the apex of the filament to which the anther is attached. Filament stalk
Filamento En un estambre, es el pedículo que sostiene a la antera
Filaments angular Filaments with cross sections angular in outline. Filaments angular
Filaments arched Filaments that depart from the rim of a staminal tube and arch inward. Filaments arched
Filaments clavate Club-shaped, i.e., the filaments are unidimensional toward the base and then abruptly expanded in diameter toward the apex. Filaments clavate
Filaments curved Filaments that arise from the staminal ring of zygomorphic-flowered Lecythidaceae and curve inward. Filaments curved
Filaments golf club-shaped. A filament that is unidimensional for the lower third of the length and enlarged and shaped like the head of an old fashioned golf club driver. Filaments golf club-shaped.
Filaments reflexed Filaments that arise from the inside of a staminal tube that abruptly turn downward as found in all species of Allantoma and Grias. Filaments reflexed
Filaments sigmoid-shaped Refers to filaments that are S-shaped to a more-or-less degree. Filaments sigmoid-shaped
Filaments straight Filaments that do not deviate in direction throughout their length, i.e., they do not form an arch or do not turn abruptly downward. This type is less frequentyl called filament erect. Filaments straight
Filaments tapered A filament that arises from the staminal ring and gradually increases in diameter from the base to the apex. Filaments tapered
Filaments terete Filaments with cross sections circular in outline. Filaments terete
Filaments unidimensional Filaments that are the same diameter throughout their length. Filaments unidimensional
Filiform Threadlike or very slender.
Fimbriate Fringed on the margin with trichomes coarser than those of a ciliate margin. Fimbriate
Flabellate (flabelliform) Fan-shaped; i.e., broadly wedge-shaped. Flabellate (flabelliform)
Flag The upper, broad petal of Fabaceae. Same as banner, standard, and flag with standard the preferred term. Flag
Flagellate (flagelliform) Whiplike. Flagellate (flagelliform)
Flagelliflorous A plant with a whiplike inflorescence that usually hangs below the crown. Flagelliflorous
Flap externo En las Lecythidaceae, es una estructura que se extiende hacia el exterior desde la parte interna enrollada de la capucha del androceo y la cubre, al menos parcialmente. Esta estructura está bien desarrollada solamente en las especies de Couratari, aunque también está presente, aunque no desarrollado, en algunas especies de Eschweilera (e.g., Eschweilera cyathiformis y E. ovalifolia)
Flexuous Bent alternately in opposite directions. Flexuous
Floating aquatic plant A plant that occurs on the surface of a lake or pond without attachment by roots to the soil at the bottom of the lake or pond upon which it grows. Floating aquatic plant
Floccose (diminutive = flocculose) Covered with tufts of wool-like hairs that often rub off easily.
Flor asimétrica Ver zigomorfa, irregular.
Flor bilateralmente simétrica Ver actinomorfa.
Flor bisexual Se aplica a la flor en la que ambos órganos sexuales, estambres y ovario(s), funcionan fisiológicamente. Lo mismo que perfecta.
Flor completa Se refiere a una flor que posee todos los verticilos o partes florales: Cáliz, corola, estambres y gineceo. Comparar con flor incompleta.
Flor imperfecta Ver flor unisexual.
Flor incompleta Se refiere a una flor que no posee todos los verticilos o partes florales: Cáliz, corola, estambres y gineceo. Comparar con flor completa.
Flor perfecta Ver flor bisexual.
Flor simétrica Ver actinomorfa, regular.
Flor solitaria Se aplica cuando la inflorescencia está constituida por una sola flor.
Flor unisexual Se aplica a la flor en la que sólo un órgano sexual es funcional, ya sean los estambres o el(los) ovario(s), pero no ambos. Lo mismo que imperfecta.
Flora A book in which all of the species of a given group of plants for a given geographic area are described and illustrated to some extent. In addition, dichotomous keys used for indentification are provided. Flora
Floral aromas Aromas emitted by plants to attract pollinators. These aromas can be extracted from plants by enclosing the flowers in bags or glass globes and then pumping the air from around the flowers through a tube with adsorbents. The samples are passed though a Gas Chromatograph and the chemical composition of the aromas of different flowers are identified by comparing the samples with a database of known compounds (Knudsen & Mori, 1996). There is a correlation between different floral aromas and the pollinators that visit the flowers. Floral aromas
Floral cavity A minute cavity on the dorsal side of Wolfia and Wolfiella (Lemnaceae) in which flowers are produced; note that vegetative buds are not produced in this cavity.
Floral tube A tube formed by the fusion of sepals, petals, or both, or as an outgrowth of the hypanthium. Nectar often accumulates within the floral tube.
Floret In the Poaceae, the term includes the lemma and palea as well as the enclosed flower; sometimes used to refer to the flowers of Asteraceae. Floret
Flower bisexual A flower with a functional androecium (the male part of the flower and all parts derived from it) and a functional gynoecium (the female part of the flower). Flower bisexual
Flower oxidizes bluish-green When the flower is bruised, the color at the point of the bruise turns bluish-green. Flower oxidizes bluish-green
Flowering associated with leaf flush A phenological strategy in which a tree drops its leaves, flowers when the canopy is leafless or partially leafless, and flushes new leaves after flowering or flowers at about the same time that new leaves are flushed; i.e., there is some association between flowering and leaf fall and flush. Flowering associated with leaf flush
Flowering not associated with leaf flush A phenological strategy in which there is no apparent relationship between leaf drop, leaf flush, and flowering. Flowering not associated with leaf flush
Flowering plant A plant whose seeds are borne within a fruit derived from a carpel or carpels. Flowering plant
Flowering plant life cycle Referring to the alternation of generations between the gameophyte (haploid) and sporophyte (diploid) stages of a floweirng plant. The most conspicuous stage of the life cycle is the sporophyte generation whereas the gametophyte generation is small and inconspicuous. Flowering plants are heterosporous because they have two different kinds of spores, the pollen grain and the embryo sac which contains a egg. Flowering plant life cycle
Fluted Same as sulcate.
Flying buttress Buttress of a tree trunk that is elevated above the ground. Compare with plank buttress and running buttress. Flying buttress
Fodder pollen Pollen that does not germinate and serves as a pollinator reward. This has been demonstrated in Couroupita guianensis and Lecythis pisonis (Mori et al., 1980) and is hypothesized for other species that appear to have staminodes on the inside of a flat hood or in stamens on the ligular side of the staminal ring. Fodder pollen
Fodder pollen Pollen that does not germinate and serves as a pollinator reward. This has been demonstrated in Couroupita guianensis and Lecythis pisonis (Mori et al., 1980) and is hypothesized for other species that appear to have staminodes on the inside of a flat hood or in stamens on the ligular side of the staminal ring. Fodder pollen
Foliácea, foliáceo Con apariencia de una hoja. Término a menudo empleado para describir cotiledones. Similar a papirácea, papiráceo.