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valve |
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STRUCTURE |
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Any longitudinal segment of a fruit wall delimited by lines of dehiscence. |
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zoned |
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coloration |
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Having two or more fairly distinctly delineated areas of contrasting hues and/or intensities. |
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gummy |
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texture |
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Highly viscous and sticky, liquid or more or less deformably solid, sometimes more or less elastic. |
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pubescent 1 (broad sense) |
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pubescence |
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Bearing trichomes. This is one of the most ambiguous terms in the botanical lexicon; it should not be used unless its intended meaning is explicit. |
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glochidiate |
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pubescence |
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Bearing glochids (glochidia). |
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resinous 2 |
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texture |
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Having the consistency of resin. |
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campylotropous |
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orientation |
ovule |
Having the (reniform) ovule curved toward the ovary wall, the micropyle facing the wall, and the funiculus attached near the center of the concave side, the curvature and displacement of funicular insertion due to asymmetrical growth during ontogenesis. |
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apiculum 1 pl. apicula |
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STRUCTURE |
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A short, slender, angular tip that is not notably harder or stiffer than the main body of the bearing structure. See also mucro. |
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bundle scar |
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FEATURE |
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A smaller scar within the bounds of a leaf scar at the point where a vascular bundle traversed the abscission layer between stem and leaf. |
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anisostemonous |
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architecture |
flower, androecium |
Having stamens unequal in size and/or shape. |
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intravaginal |
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position |
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Within the leaf sheath. |
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inflorescence 2 |
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STRUCTURE |
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The basic architectural unit of the flower-producing portion of a plant; comprising one or more flowers, their associated supporting axes (peduncles, main axes, branches and pedicels), if any, and the appendages thereto (bracts, bractlets or bracteoles or prophylls, involucres, involucels, and glumes), if any; delimited by the insertion or gradation of a single peduncle, peduncle cluster, pedicel, pedicel cluster, or sessile flower, as the case may be, directly upon or into some proximal vegetative structure not of one of these types; depending upon the type(s) of flowers included, may be bisexual (all flowers bisexual), staminate (all flowers staminate), pistillate (all flowers pistillate), sterile (all flowers sterile), or mixed (two or more types of flowers present); most appropriately described using nominative terms. |
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sepal |
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STRUCTURE |
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One of the one or more constituent members of a calyx; usually green and leaf-like, but sometimes with color and/or texture otherwise, sometimes petaloid; may be distinct or else connate with one or more others and/or may be free or else adnate to one or more other floral structures. |
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coalescent |
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fusion |
equivalent and/or dissimilar structures |
Partially and irregularly coherent and/or adherent. |
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coating |
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CHARACTER |
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Exudate that covers the surface proper. See also indumentum (vesture), pubescence. |
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knee root |
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STRUCTURE |
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A specialized secondary root of a wetland tree, a portion of which projects above mean water level and appears to bend as a leg does at the knee, its distalmost portion being anchored in the substrate beneath the water. The knee of the root is commonly regarded as a conduit for gas exchange between root interior and atmosphere, a function whose need is posited on the basis of the highly anaerobic and saturated conditions prevailing in wetland substrates. |
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circumscissile |
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dehiscence |
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Splitting transversely through the exterior wall about its entire circumference, the resulting upper cap-like portion falling away. |
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liguliflorous |
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architecture |
capitulum (head) |
Bearing florets that all are bisexual and have zygomorphic corollas; in Asteraceae (Compositae). |
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sinuous |
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course |
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Regularly wavy in one plane, curved alternately and more or less regularly to either side. |
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continuous 3 |
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architecture |
rachilla, rachis |
Not disarticulating at maturity. |
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subequal |
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size |
equivalent structures |
Nearly uniform in extent. See also equal, unequal. |
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decussate |
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arrangement |
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Opposite with successive pairs radially oriented at right angles to one another, thus polystichous with four equidistant ranks. |
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obovoid |
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solid shape |
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Inversely ovoid (egg-shaped). |
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suffused |
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coloration |
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Having two or more hues, shades, and/or intensities intermingled, the contrasting components distinguishable only submacroscopically. |
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tetrad scar |
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FEATURE |
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A surficial ridge or angle resulting from coherence with other spores produced from the same mother cell. |
