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pale 1 |
= palea, palet, receptacular bract |
STRUCTURE |
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A small papery (chartaceous) to membranous bract borne on the compound receptacle of a capitulum (head) in Asteraceae (Compositae). |
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dolabriform |
= axe-shaped |
solid shape |
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Elongate, basally terete, becoming strongly compressed toward an abruptly and unilaterally broader apex; like an axe (handle plus head). This term is not semantically distinct from dolabrate, but botanically they have had somewhat different applications. |
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indeterminate |
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development |
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Having the lateral (peripheral, basal, or proximal) portions differentiating first and the terminal (central, apical, or distal) portion later, development thus proceeding sequentially upward or inward. |
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subterminal |
= subapical |
position |
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Lateral and just below the apex. |
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reclinate |
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vernation |
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Each with its blade oriented downward and parallel to the proximal portion of its distally recurved petiole. |
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mammiform |
= breast-shaped |
solid shape |
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Rounded conic, like the breast of a mammal. |
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compound |
= composite |
architecture |
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Unitary as a whole but comprising two or more equivalent substructural entities, these topologically distinct (e.g., leaflets in a compound leaf) or not (e.g., carpels in a compound pistil). |
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undulate |
= wavy |
margin |
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Having regular, curved, smoothly connected, alternating, wave-like deviations upward and downward from the general plane of the structure. |
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funiculus pl. funiculi |
= funicle; < stalk |
STRUCTURE |
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A stalk that attaches an ovule to a placenta of the ovary wall. |
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cristate |
= crested |
apex |
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Having a laterally elongate, relatively thin, irregular or notched protrusion. |
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sigmoid 1 |
= S-shaped |
course |
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Curved more or less regularly first in one direction and then in the opposite direction, like the letter S. |
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almondy |
= hydrocyanic |
odor |
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Pungently fruity like almonds, due to the presence of hydrocyanin or a closely related compound. |
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episepalous |
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position |
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Upon the sepals, or partially adnate thereto and apparently arising therefrom. |
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laesura pl. laesurae |
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FEATURE |
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An elongate aperture in the proximal face of a spore at or near its pole, coterminous with a tetrad scar; in Psilotophyta, Lycopodiophyta, Equisetophyta, Polypodiophyta. Depending upon tetrad configuration and resultant scar pattern, a laesura may be either unbranched or branched, the branches when present (usually 3) radiating from the pole and of approximately equal lengths. |
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calceolate |
= slipper-shaped |
solid shape |
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Relatively thin-walled with an essentially hollow interior that is open on one side at the broader end. |
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testa pl. testae |
= seed coat |
STRUCTURE |
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The outer protective layer of a seed, developed from the ovular integument(s). |
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sagittate 2 |
= arrowhead-shaped |
plane shape |
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Generally triangular, tapering gradually from the base to an acute apex, the base with a relatively large, acute, retrorse lobe to either side; like the outline of the broad lateral face of an arrowhead. |
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napiform |
= turnip-shaped |
solid shape |
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Depressed-globose overall and strongly acuminate (concave-tapered) at the base; like the generalized form of a turnip. |
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navicular |
= boat-shaped, cymbiform |
solid shape |
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Like the generalized form of a boat hull, the walls relatively thin to moderately thick, the interior essentially empty and open along one side. |
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whorl |
= cycle, series, verticil |
STRUCTURE |
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A set of three or more lateral structures that are inserted around an axis at the same level. |
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one-sided 1 |
= unilateral |
architecture |
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Having only one side, as compared with presumably equivalent, bilaterally symmetric structures. |
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half-terete |
= semiterete |
solid shape |
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Terete but flattened on one side. |
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spurred |
= calcarate |
base |
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Having a relatively slender protrusion resembling a spur. |
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position |
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CHARACTER |
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Location or disposition with reference to some dissimilar structure(s) or larger context. The lexicons relating to position and insertion 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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flabellate |
= fan-shaped, flabelliform |
solid shape |
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Strongly compressed, broadest near the apex and attenuate to a narrow base, plaited longitudinally, the alternating folds radiating from the base, the whole basically triangular in broad aspect; like a partially expanded folding fan. |
