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carpophore 3 |
= columella; < stalk |
STRUCTURE |
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The stalk supporting a mericarp after dehiscence of a schizocarpic fruit, the central axis of the fruit having split longitudinally to yield two or four such stalks; composed of receptacular and (primarily) gynoecial tissues; esp. in Apiaceae (Umbelliferae). |
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conduplicate 2 |
= duplicate |
vernation |
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Each leaf folded sharply inward along its longitudinal axis, the adaxial surfaces of each side facing one another. |
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membranaceous |
= membranous |
texture |
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Extremely thin, pliable, and fairly tough; like animal membrane. See also chartaceous (papery, papyraceous), pergamentaceous (parchment-like). |
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obtrulloid |
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solid shape |
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Inversely trulloid. |
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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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pergamentaceous |
= parchment-like |
texture |
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Very thin, pliable, and fairly tough; like parchment. See also chartaceous (papery, papyraceous), membranaceous (membranous). |
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filiform |
= thread-like |
solid shape |
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Elongate and very slender, basically round in transverse section and of more or less uniform diameter, variously curved over its length or not. See also capillary (capillate, hair-like). |
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prominent |
< raised |
prominence |
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Protruding above the general level of the surrounding surface. See also prominulous. |
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glittering |
= splendent |
reflectance |
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Interruptedly glossy (laevigate, lustrous, polished, shining, shiny, and thus sparkling when viewed from changing angles. |
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globose |
= globular, orbicular, rotund, spheric(al), spheroid(al) |
solid shape |
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Uniformly convex, circular in any median section and in outline when viewed from any angle; like a globe or sphere. |
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horned |
= corniculate |
apex |
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Bearing one or more horns (cornicula). |
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lacuna pl. lacunae |
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FEATURE |
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A hole or cavity; an empty space surrounded by tissue in two or three dimensions. |
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spire-shaped |
= strombuliform |
solid shape |
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Attenuate-spiral in three dimensions, the coils contiguous or not. |
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tooth pl. teeth |
= dens |
STRUCTURE |
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One of a series of regularly spaced, angular, marginal convexities oriented more or less perpendicular to the generalized perimeter of a laminar structure. See also sawtooth, sawtoothlet, scallop (crena), scalloplet (crenule), toothlet. |
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vasculature |
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STRUCTURE |
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The vascular strands of all orders (veins and veinlets) in a particular part or organ, regarded collectively; consisting of conducting tissues (xylem, phloem) and associated supporting and enclosing tissues (e.g., sclerenchyma, collenchyma). |
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barbed 2 |
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solid shape |
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Having one or more relatively short, stiff, acutely inserted or bent, antrorse or retrorse, terminal and/or lateral hook-like appendages; esp. awns or setae. |
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canalicular |
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insertion |
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Upon or otherwise directly associated with the channel of a petiole or petiolule. |
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collar 2 |
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FEATURE |
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The junction between the sheath and blade of a leaf; esp. in Poaceae (Gramineae). |
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mamilla pl. mamillae |
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STRUCTURE |
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A nipple- or teat-shaped protrusion. |
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cucullate 2 |
= cuculliform, hood-shaped |
solid shape |
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Convex or compressed-convex overall with a distal peak or ridge, relatively thin-walled and essentially hollow with the interior open to one side below the distal portion; resembling a hood or cowl. See also galeate (galeiform, helmet-shaped), which overlaps conceptually. |
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nucellus pl. nucelli |
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STRUCTURE |
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The distinct, genetically diploid tissue layer immediately surrounding the embryo sac of an ovule; often considered equivalent to a megasporangium wall. |
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double-… |
= bi…, twice… |
prefix |
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Indicating presence of two hierarchical orders of the type of entity or pattern denoted by the term's stem; as in double-pinnate, double-crenate. See also two-… (bi…, di…). |
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partial |
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extent |
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Not reaching fully from the ovary wall or pericarp to the center of the ovary or fruit and/or from the apex to the base of its interior, thus not completely separating adjacent locules, which are recognized and delimited by extrapolating from the incomplete septal boundary(ies), the ovary or fruit nonetheless effectively unilocular. |
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farinaceous 1 |
= mealy; < crumbling, fatiscent |
texture |
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Of minute, relatively stout trichomes that are collectively meal- or flour-like and easily detached. See also farinose. |
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fusiform |
= spindle-shaped |
solid shape |
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Elongate, transversely round, broadest at the middle and regularly attenuate to either end. |
