taprooted |
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architecture |
plant |
Having a taproot. See also diffuse-rooted, fibrous-rooted. |
arcuate 1 |
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course |
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Curving more or less regularly in one direction. |
elater 1 |
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STRUCTURE |
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An elongate cell with a helical, hygroscopic thickening in its wall, contained within a sporangium, expanding and contracting with changes in humidity and aiding dispersal of the spores; esp. in Hepaticae. |
extrorse |
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dehiscence |
anther |
Opening outwardly, on the abaxial side. See also introrse, latrorse. |
erect |
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orientation |
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Perpendicular to the horizon or to the general plane of a bearing structure. |
flaccid |
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texture |
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Limp, sometimes appearing withered or shrunken. See also tumid (swollen, turgid). |
perulate |
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architecture |
bud |
Having outer scales that enclose and protect the embryonic components, from which they differ significantly in texture, shape, size, relief and/or vestiture. See also naked. |
fibrous |
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texture |
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Having tough, woody or sclerotic strands distributed through a softer matrix. |
…porate |
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architecture |
pollen grain |
Having the number of pores indicated by the prefix; as in monoporate, polyporate, triporate. |
vascular bundle |
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STRUCTURE |
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A discrete strand of conducting tissues (xylem, phloem) and associated cells (e.g., cambium) within a stem or other axial structure. |
racemose |
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architecture |
inflorescence |
Comprising one or more racemes. |
gynandrous |
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architecture |
flower |
Having the androecium adnate to the gynoecium. |
runcinate |
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plane shape |
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Basically obovate with a series of retrorse, acute lobes on either side, these diminishing in size toward the base. |
root 1 |
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STRUCTURE |
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Collectively, all those portions of a plant body that are anatomically distinct from the shoot, the component axes not differentiated into nodes and internodes, and branching endogenously. |
intruded |
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placentation |
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Upon partial septa excrescent from the wall of a compound, unilocular ovary. |
infrafoliar |
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insertion |
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Upon the stem directly below a leaf insertion. |
laminar 2 |
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solid shape |
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Relatively very thin with parallel opposite broad faces, the whole plane or variously curved. Structures to which this term, along with any other three-dimensional ones, is applicable are often also described as though only two-dimensional, using terms that are implicitly understood to refer only to the outline of the broad faces. |
actinocytic |
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architecture |
stomate |
Having several subsidiary cells oriented radially to its center. |
limb 1 |
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STRUCTURE |
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A relatively broad portion of a syntepalous (gamotepalous) perianth, synsepalous (gamosepalous) calyx, or sympetalous (gamopetalous) corolla distal to a narrower tube, spreading outward or ascending from the tube, comprising the distinct or connate distal portions of the tepals, sepals, or petals; except in bisexual or staminate disc florets of Asteraceae (Compositae). |
legume |
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nominative |
fruit |
Dry, septicidal, one-loculed and derived from a single, superior, simple ovary; dehiscing along two sutures, one abaxial, one adaxial; in Fabaceae (Leguminosae). See also loment. |
capsular |
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architecture |
fruit |
Having the structure and texture of a capsule. |
cupule |
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STRUCTURE |
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A cup-like structure inserted at the base of a fruit, partially enclosing it or not; composed of a persistent, usually dried, sometimes hardened involucre, perianth, or portion thereof, the constituent parts often coalescent, yielding a unitary structure. |
capsule |
|
nominative |
fruit |
Dry, longitudinally or poricidally dehiscent, and derived from a compound ovary with one or more locules; containing one or more seeds. See also pyxis. |
square |
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plane shape |
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Equilaterally rectangular. |
margin |
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CHARACTER |
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Configuration of all or part of the periphery of a planate structure, sometimes referred to as though it were discrete and an entity in its own right for descriptive purposes. The extent of the area considered to pertain to the margin in a given case is, of necessity, subjectively determined. As a general rule, peripheral concavities that do not exceed 1/5 the distance from the generalized edge to the center or main axis of the structure are considered components of marginal configuration, deeper concavities being considered components of overall shape. The margin is sometimes considered to be only the infinitely thin boundary itself, and such a definition is probably the one most technically correct from the standpoint of geometry and general usage. However, it is inconsistent with traditional usage in descriptive botany, which treats the margin as an entity of substance both semantically and conceptually. The semantic antecedent of some descriptors is "margin," whereas the antecedent of others is the structure as a whole (e.g., leaf). |