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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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retuse |
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apex |
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Round overall with an obtuse terminal sinus. |
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…valleculate |
= …colpate, …fossulate, …furrowed, …grooved, …sulcate |
architecture |
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Having the number of valleculae indicated by the prefix; esp. fruits of Apiaceae (Umbelliferae); as in tetravalleculate, 8-valleculate. |
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nodal |
> interpetiolar |
position |
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Upon or associated with the nodes. |
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small-scalloped |
= crenulate |
margin |
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Finely scalloped (crenate). See also sawtoothed (serrate), small-sawtoothed (serrulate), small-toothed (denticulate), toothed (dentate). |
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pinnatisect |
< pinnate, pinnatifid |
plane shape |
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Pinnately divided with the sinuses extending to the central axis. |
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canaliculate |
= channeled |
solid shape |
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Having a longitudinal, transversely rounded depression; esp. a petiole or petiolule. |
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cottony |
> lanuginose |
pubescence |
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Of or bearing relatively long and fine, intertwined, somewhat matted, capillate trichomes. See also lanuginose. |
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fibrous root |
< diffuse root |
STRUCTURE |
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A diffuse root that includes a significant component of woody or sclerotic strands and is consequently tough and often wiry. |
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scallop |
= crena |
FEATURE |
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A rounded, marginal convexity or concavity in a series of such that alternate regularly and are oriented more or less perpendicular to the generalized perimeter of a laminar structure. See also sawtooth, sawtoothlet, scalloplet (crenule), tooth (dens), toothlet. |
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attenuate 2 |
= tapered |
solid shape |
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Gradually diminishing in breadth or diameter from one end to the other. |
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staminal |
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position |
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Upon or otherwise directly associated with the stamens. |
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subsidiary cell |
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STRUCTURE |
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One of the cytologically distinctive epidermal cells that are sometimes present in a stomate and that surround and are regularly oriented in relation to the guard cells. |
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prophyllar |
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insertion |
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Upon or otherwise directly associated with the prophylls (bracteoles, bractlets). |
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elaiosome |
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STRUCTURE |
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A fleshy outgrowth from the seed coat (testa) that contains a high proportion of oil, usually attracting ants for dispersal. |
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main stem |
= primary stem; > bole, trunk |
STRUCTURE |
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The one, or any of the more than one, first-order stem(s), or first-order portion(s) of the collective stem, of a shoot. |
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…dentate 2 |
= …-toothed |
margin |
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Having the number of orders of dentes (teeth) indicated by the prefix, one upon another; as in twice-dentate. See also …crenate (…-scalloped), …serrate (…-sawtoothed). |
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short-shoot |
= spur |
STRUCTURE |
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A first- or higher-order woody stem branch having relatively unelongated internodes, thus proximate nodes, and limited duration of growth, usually branching little if at all; often a main locus of flower production; usually more or less perpendicular to the axis that bears it and resembling a spur projecting from it; sometimes becoming more or less spinose after elongation ceases; esp. in Rosaceae. |
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peripheral |
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insertion |
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Upon or otherwise directly associated with the outer surfaces or regions of a three-dimensional structure. Although use of this term in two-dimensional contexts is technically correct, traditionally the term marginal is preferred in such cases. |
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bract 2 (strict sense) |
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STRUCTURE |
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Any primary or first-order lateral structure ontogenetically and anatomically analogous with, and therefore presumably homologous with, but relatively smaller than, a leaf, especially when subtending an inflorescence, other reproductive structure, or portion thereof; putatively, an evolutionarily reduced leaf. |
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laciniate |
= slashed; < cut, incised, lacerate, torn |
plane shape |
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Having relatively close, more or less straight lines of separation exending inward from the margin. See also cleft (dissected, divided, lobate, lobed, parted, partite, segmented). |
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receptacular bract |
= pale, palea, palet |
STRUCTURE |
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A small papery (chartaceous) to membranous bract borne on the compound receptacle (torus) of a capitulum (head) in Asteraceae (Compositae). |
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exudation |
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CHARACTER |
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Discharged substance, as to type. |
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S-shaped 2 |
= sigmoid |
solid shape |
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Elongate with more or less constant width or diameter and curved more or less regularly first in one direction and then in the opposite direction, like the letter S. |
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mushroom-shaped |
= fungiform |
solid shape |
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Having a cylindric base and a considerably broader, pulvinate distal portion; like the generalized form of a mushroom. |
