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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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alternate 1 |
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arrangement |
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Inserted singly along the axis, each at a different level and each diverging on a different radius than the ones next above and below. |
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episepalous |
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insertion |
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Upon the sepals, or partially adnate thereto and apparently arising therefrom. |
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rigent |
= rigid, stiff |
texture |
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Strongly resisting deformation over its length. |
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obcordiform |
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solid shape |
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Inversely cordiform (heart-shaped). |
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astomatiferous |
= non-stomate-bearing |
architecture |
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Lacking stomates in the epidermis. |
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pseudostem |
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STRUCTURE |
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A structure that resembles a stem but is not part of the axial system of a shoot, lacking anatomical differentiation into nodes and internodes. |
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lenticular 2 |
= biconvex, lens-shaped |
solid shape |
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Relatively thin with two round, convex, opposite broad faces intersecting acutely at the circumferential edge; like a double-convex lens. See also disciform (discoid), meniscoid. |
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…celled |
= …cellular |
architecture |
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Having the number of cells indicated by the prefix; as in one-celled, few-celled, 5-celled. |
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transverse 1 |
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dehiscence |
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More or less perpendicular to the central axis. |
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fixed |
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fixation |
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Attached to the bearing structure in a manner allowing no significant rotation or declination in relation to it. |
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scutate |
= buckler-shaped, scutiform |
solid shape |
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Relatively thin with opposite broad oblong faces, planate to shallowly concave-convex, sometimes thickened about the periphery such that each face has a marginal rim; like an oblong shield. See also scutellate (platter-shaped, scutelliform), which is not clearly distinct in its application. |
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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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infrafoliar |
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position |
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Upon the stem directly below a leaf insertion. |
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bole |
= trunk; < main stem, primary stem |
STRUCTURE |
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The relatively stout, columnar, main stem of a distinct aboveground portion of a tree. |
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superaxillary |
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insertion |
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Internodal but close to and directly above the axil(s). |
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acuminate |
= concave-tapered |
apex |
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Gradually diminishing in width or diameter to a slender tip, the sides longitudinally concave. Corresponds with attenuate for base shape. |
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endophytic |
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habit |
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Growing within some portion of another, unrelated, living plant. |
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reproduction |
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CHARACTER |
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Type, morphology, disposition, function and/or dissemination of reproductive structures. |
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nerve |
= vein; > costa, midnerve , midrib, midvein, rib |
STRUCTURE |
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A strand belonging to any except the ultimate (least in diameter) order of vasculature in a leaf or other foliaceous structure. See also lateral vein, primary vein, secondary vein, tertiary vein, veinlet. |
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sinus pl. sinus, sinuses |
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FEATURE |
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The space, indentation, or invagination (or, for some descriptive purposes, the outline thereof) between and delimiting any two consecutive or adjacent lobes or teeth of a structure. |
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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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hastate 2 |
= halberd-head-shaped |
plane shape |
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Basically triangular with an acute apex and two large, widely divergent basal lobes, each generally triangular and distally acute; like the stylized outline of the broad lateral face of a halberd head. |
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phyllodium pl. phyllodia |
= phyllode |
STRUCTURE |
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A leaf deemed to consist entirely or almost entirely of tissues evolutionarily derived from the petiole, all or a distal portion of which has become laminar, the original blade reduced to the point of absence or vestigiality. |
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lanceoloid |
= lancehead-shaped, lanciform |
solid shape |
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Considerably longer than broad, compressed or not, broadest near the base and somewhat concavely attenuate to the apex, the attenuation in all median longitudinal planes or else largely confined to one, depending upon the extent of compression, if any. See also oblanceoloid (oblanciform). |
