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carpel |
< macrosporophyll (not recommended), megasporophyll, pistil |
STRUCTURE |
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A more or less abstract unit of floral structure conceptually equivalent to a simple pistil or its putative evolutionary precursor (megasporophyll) or derivative (constituent of compound pistil); often regarded as the basic evolutionary unit of the gynoecium. |
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pistil |
> carpel |
STRUCTURE |
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Any simple or compound, discrete or histologically distinct, female (ovule-producing) floral structure, or any putatively homologous sterile structure; comprising an ovary and one or more stigmas borne either directly upon the ovary or upon one or more intervening styles. See also gynoecium. |
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concave-tapered 1 |
= acuminate |
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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pungent 1 |
= acrid |
apex |
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Terminating abruptly in a rigid, relatively short, sharp point composed of both vascular and laminar tissues. |
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eight-… |
= octa… |
prefix |
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Indicating presence of or constitution by eight entities of the type denoted by the term's stem; as in eight-carpelled, eight-flowered, eight-stamened. |
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shining |
= glossy, laevigate, lustrous, polished, shiny |
reflectance |
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Uniformly reflecting a high proportion of incident light at all angles. |
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fiddle-shaped |
= pandurate |
plane shape |
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Basically obovate but with deep, rounded sinuses opposite one another in the proximal half; like the frontal outline of an inverted fiddle body. |
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glandular 1 |
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architecture |
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Having one or more glands. |
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surficial |
= superficial |
insertion |
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Directly upon the surface of the structure in point. |
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hooded |
= cucullate |
architecture |
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Bearing, incorporating, or surmounted by a hood-shaped structure. |
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truncate 1 |
= abrupt |
apex |
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Having a distal boundary that is generally straight or plane and approximately perpendicular to the central axis. |
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warty |
= tuberculate, tuberculose, verrucose |
relief |
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Covered with small, relatively broad, irregularly shaped, obtuse protrusions. |
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androecial tube |
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STRUCTURE |
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The tubular portion of an androecium in which the component structures have fused with one another laterally over part or all their lengths. |
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banded |
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coloration |
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Broadly striped; having one or more elongate, relatively broad and, when multiple, more or less parallel, areas of contrasting hue and/or intensity. |
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microsporangium pl. microsporangia |
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STRUCTURE |
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A sporangium that produces microspores. |
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oil-secreting |
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exudation |
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Producing and exuding an oily substance, often aromatic; when oil-secreting glands are indicated in the nominative, often they are called simply oil glands. |
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calyptriform |
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solid shape |
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Hollow, roughly circular in cross-section, broader and open distally, and tapering to a closed apex, like a candle snuffer or elongate hood. |
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perisperm |
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STRUCTURE / SUBSTANCE |
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A genetically diploid (2n chromosomes) nutritive tissue in a seed; containing stored carbohydrate and/or oil utilized by the embryo prior to and especially upon germination; derived from the nucellus. See also endosperm (albumen). |
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cochleate |
= snail-shell-shaped |
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; like a snail shell. |
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proximal |
> basal |
position |
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Upon or associated with the portion of a structure closest to its developmental origin. |
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crustaceous |
= crusty |
texture |
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Thin, dry, hard, and brittle. |
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ribbed 2 |
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solid shape |
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Having two or more prominent, elongate, relatively narrow, essentially parallel protrusions that extend over all or most of its length or circumference. |
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dorsifixed |
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fixation |
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Attached on the abaxial side well above the base. |
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faceted |
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solid shape |
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Having numerous, relatively small, flat or shallowly curved portions of the external surface that are bounded by more or less distinct angular discontinuities in that surface. |
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sporophyte |
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PLANT |
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The main, ultimate, spore-bearing stage in the diploid (2n chromosomes) phase of a taxon's life cycle. Two morphologically and genetically distinct and alternate phases together constitute the complete life cycle in sexually reproducing taxa, the other phase (gametophytic) being haploid (n chromosomes). Any taxon whose life cycle is confined to one or the other phase is limited to asexual means of reproduction, since sexual reproduction with consequent genetic recombination is impossible without alternation between haploid and diploid states via meiosis and fertilization. The term sporophytic applies to any part of the diploid phase, including all unicellular to multicellular entities belonging to it, whereas sporophyte is reserved for the principal and directly spore-producing stage of that phase. |
