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Hetero-
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A prefix meaning different or other. |
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Heteroblastic
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Referring to a plant with juvenile forms that are morphologically distinct from adult forms; often used to describe leaves changing from compound to simple as the plant passes from juvenile to adult. |
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Heterochlamydeous
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Referring to a flower with differentiated calyx and corolla; same as biseriate perianth. Compare with monochlamydeous. |
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Heterogamous
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Having flowers of two or more different types; e.g., the heads of certain Asteraceae with both ligulate and disk flowers. |
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Heteromorphic
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Referring to structures or organs within a species or individual that differ in form or size; e.g., the simple juvenile and pinnately compound leaves of Syagrus inajai (Arecaceae). Compare with dimorphic and monomorphic. |
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Heteromorphic stamens
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Stamens of two distinct types; one type usually bears fertile pollen and the other type bears sterile or fodder pollen; e.g., Lecythis zabucajo (Lecythidaceae) and species of Senna (Fabaceae). |
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Heterophylly (heterophyllous)
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Referring to species or individuals with leaves that differ in size or shape. See heteromorphic. |
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Heterospory (heterosporous)
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Producing two different kinds of spores; e.g., those giving rise to the microgametophytes and megagametophytes of Selaginella, Isoetes, and the flowering plants and the |
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Heterostyly (heterostylous)
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A condition in which the style and stamen lengths vary among individuals of the same species; e.g., in Coussarea racemosa (Rubiaceae), with flowers with long styles and short stamens and flowers with short styles and long stamens in different trees of the same population. The long-styled flowers are called pin flowers and the short-styled flowers are called thrum flowers. |
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Heterótrofa, heterotrófica
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Se refiere a las plantas que son incapaces de sintetizar los compuestos orgánicos a partir del substrato inorgánico. Opuesto a autótrofa o autotrófica |
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Heterotroph (heterotrophic)
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Unable to synthesize organic compounds from inorganic substrates, i.e., this kind of plant does not photosynethesize and is not green in color because it lacks chlorophyll. |
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Hierba
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Planta no leñosa. Las herbáceas por lo general son plantas pequeñas, pero también pueden alcanzar un gran tamaño; por ejemplo, la papaya (Carica papaya L.). |
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Higher order leaf venation
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Referring to venation levels in the leaves above the tertiary veins. |
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Higher order venation
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All venation smaller in diameter than tertiary venation. |
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Hilum (hilar)
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A scar on the seed indicating where the funicle was attached. |
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Hipantio
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Es un tubo floral constituido por las partes fusionadas del perianto, a veces incluye tejidos del receptáculo. El tubo puede estar libre del ovario, como en las flores períginas, o puede estar fusionado al ovario, como en las flores epíginas |
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Hipocarpo
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Pedicelo engrosado que sostiene al fruto de Anacardium (Anacardiaceae). También se lo conoce como fruto falso o pseudofruto. |
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Hippocrepiform
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Horseshoe-shaped. |
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Hippuriform
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Shaped like a horse’s tail; e.g., the inflorescences of species of Oenocarpus (Arecaceae). |
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Hirsute (diminutive = hirtellous)
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With rough or coarse hairs. |
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Hispid (diminutive = hispidulose)
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With dense, stiff trichomes. |
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Hoja
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Estructura expandida donde se produce la fotosíntesis, usualmente está compuesta por un peciolo y una lámina |
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Hoja compuesta
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Se refiere a una hoja que está dividida en varias o muchas unidades laminares más pequeñas. Opuesto a hoja simple |
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Hoja imparipinnada
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Se refiere a una hoja compuesta que posee un foliolo impar en la porción distal. Comparar con paripinnada |
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Hoja paripinnada
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Se refiere a una hoja compuesta que posee un par de foliolos en la porción distal. Equivalente a bipinnada. Comparar con imparipinnada |
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