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resin |
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SUBSTANCE |
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A substance of high molecular weight consisting of organic acids, esters, and/or terpenes, produced within plant tissue and exuded from wounds as a liquid that hardens to an amorphous glassy state upon exposure. |
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bulbil |
= bulblet |
STRUCTURE |
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A small bulb-like structure produced from a sterile or fertile plant structure other than a bulb, usually within a leaf axil, leaf sinus, or inflorescence, serving as a vegetative propagule. |
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obtriangular 2 |
= cuneate, wedge-shaped |
plane shape |
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Inversely triangular; like the outline of the broad lateral face of a wedge, broadest at the apex. See also obdeltate. |
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vesicle |
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STRUCTURE |
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A small bladder-like part consisting of an enclosing wall or covering and an empty or fluid-filled interior, sometimes turgid; esp. in citrus fruits (hesperidia). |
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epicalyx pl. epicalyces |
= calyculus |
STRUCTURE |
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A whorl of bracts immediately subtending (beneath or outside) a calyx. |
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scarious |
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texture |
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Very thin, dry, and not green. |
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raphe |
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STRUCTURE |
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That portion of the funicle adnate to the integument of an anatropous ovule; represented by a longitudinal ridge or other discontinuity in the surface and/or color of the testa on one side of the mature seed. |
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paired |
= conjugate, geminate |
arrangement |
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Inserted by pairs, the members of each fused or not. |
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canalicular |
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position |
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Upon or otherwise directly associated with the channel of a petiole or petiolule. |
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dot-like |
= punctiform |
plane shape |
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Very small and generally circular in outline. |
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inframedial |
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insertion |
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Slightly below the middle of the structure in point. |
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trigonous |
= three-angled, triquetrous; > deltoid, obdeltoid |
solid shape |
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Elongate with three sides that meet at acute or obtuse angles. |
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determinate |
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development |
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Having the terminal (central, apical, or distal) portion differentiating first and the lateral (peripheral, basal, or proximal) portions later, development thus proceeding sequentially downward or outward, growth of the whole thereby organizationally limited. |
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marginal |
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insertion |
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Upon or otherwise directly associated with the margins. |
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development |
= ontogeny |
CHARACTER |
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Mode or pattern of growth and differentiation. |
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marginal |
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position |
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Upon or otherwise directly associated with the margins. |
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snail-shell-shaped |
= cochleate |
solid shape |
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Relatively broad and short, basically round in transverse section, resembling a rapidly tapering spire overall, the exterior helically convoluted. |
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notch |
= emargination |
FEATURE |
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A relatively small, acute sinus at the distal end of a laminar structure. |
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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. |
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quincunx |
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aestivation |
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Imbricate in one whorl of five members, two wholly exterior, two wholly interior, and one partially exterior and partially interior. |
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crispate |
= crisped, curly |
margin |
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Having closely and irregularly spaced, irregularly shaped, often compound convexities that curve irregularly through three dimensions. |
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gynandrium pl. gynandria |
= column, gynostemium |
STRUCTURE |
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A central floral structure consisting of the partly to wholly fused (connate and adnate) androecium and gynoecium; esp. in Orchidaceae. |
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terminal |
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insertion |
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Apical and with the same developmental axis as the whole, of which it is the distalmost portion or appendage. |
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spongy |
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texture |
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Soft, light, discontinuous but cohesive, and somewhat resilient. |
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complanate |
= compressed; < flattened |
solid shape |
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Flattened bilaterally, parallel to the longitudinal axis, as though pressed or squeezed from opposing sides, the external surface otherwise basically convex. This term usually implies a strong degree of flattening. See also depressed, obcompressed. |
