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concolor(ous) |
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coloration |
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Uniform in hue and intensity of color; esp. leaves with identically colored adaxial and abaxial surfaces. |
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bud scale |
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STRUCTURE |
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A scale that, alone or aggregated with others, envelops and protects a bud. |
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insertion |
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CHARACTER |
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Mode or locus of attachment of a structure to some dissimilar bearing structure. The lexicons relating to insertion and position overlap to a great degree, since these two morphological concepts are often inseparable in practice. Also overlaps conceptually with arrangement, habit, orientation, and shape. |
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elastic |
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texture |
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Resiliently deformable with no loss of structural integrity. |
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anchoring |
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habit |
trichome |
Serving as a means of attachment to some external support. |
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galea pl. galeae, galeas |
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STRUCTURE |
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A galeate (galeiform, helmet-shaped) sepal or petal in a zygomorphic calyx or corolla, differing markedly in shape from and sometimes partially enclosing the other sepals or petals. |
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microsporangium pl. microsporangia |
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STRUCTURE |
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A sporangium that produces microspores. |
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calyptra pl. calyptrae |
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STRUCTURE |
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A distal hood- or lid-like portion that detaches as a unit from the remainder of the structure; esp. in some Papaveraceae the unopened calyx that separates from the rest of the flower at anthesis. |
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isosepalous |
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architecture |
flower, perianth, calyx |
Having the sepals essentially alike in size and shape. |
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perisperm |
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STRUCTURE / SUBSTANCE |
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A genetically diploid (2n chromosomes) nutritive tissue in a seed; containing stored carbohydrate and/or oil utilized by the embryo prior to and especially upon germination; derived from the nucellus. See also endosperm (albumen). |
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epibracteal |
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position |
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Upon the bracts, or partially adnate thereto and apparently arising therefrom. |
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resin |
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SUBSTANCE |
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A substance of high molecular weight consisting of organic acids, esters, and/or terpenes, produced within plant tissue and exuded from wounds as a liquid that hardens to an amorphous glassy state upon exposure. |
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symmetric(al) 1 |
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solid shape |
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Divisible into essentially equal halves along one or more lines or planes. |
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craspedodromous, mixed- |
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venation |
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Having a midvein that branches to either side along the length of the lamina, the secondary veins running thence toward the margin, some becoming indistinct before reaching it, others terminating there. |
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spikeleted |
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architecture |
inflorescence |
Having the penultimate subdivisional order consisting of spikelets. |
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weeping |
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architecture |
plant |
Having elongate, flexible, pendent branches. |
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gynecandrous |
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reproduction |
taxon |
Monoecious, each inflorescence having a distal sector with only pistillate flowers and a proximal sector with only staminate ones. |
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cryptocotyloid |
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germination |
seed |
Having the cotyledon(s) remaining inside the seed coat. |
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centripetal |
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development |
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Proceeding toward the center, thus more advanced peripherally than centrally within a given frame of reference. |
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leaf scar |
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FEATURE |
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A scar on a twig or stem due to abscission of a megaphyll; having an outline like that of a transverse section through the base of the petiole, sheath, or blade that was inserted there. |
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plicate 1 |
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aestivation |
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Valvate with each member strongly infolded longitudinally. |
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accrescent |
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duration |
structure |
Increasing further in size after the bearing structure has become functionally mature; esp. a calyx after anthesis. |
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false |
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derivation |
indusium |
Constituting a marginal fold of the lamina as a whole and not a distinct enation from the epidermis. |
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asepalous |
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architecture |
flower, perianth |
Lacking sepals. |
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oblanceolate |
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plane shape |
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Inversely lanceolate (lancehead-shaped). |
