maturation |
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CHARACTER |
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Timing of the attainment of functional maturity, sometimes relative to other structures, sometimes as to constituent structures relative to each other. |
extent |
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CHARACTER |
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Reach of the septum or septa within the ovary or fruit, relative to the ovary wall or pericarp and its center. |
duration |
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CHARACTER |
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Extent of lifetime, or persistence and physical state after maturation. |
follicle |
|
nominative |
fruit |
Dry, longitudinally dehiscent, one-locular, one- to many-seeded and derived from a single, superior, simple ovary; dehiscing along a single adaxial suture. |
U-form |
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arrangement |
bundle scars |
Disposed in a truncated elliptical pattern, like the letter U. |
unisexual |
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reproduction |
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Having functional reproductive structures of only one sex. See also imperfect, pistillate, staminate. |
fenestrate |
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architecture |
pollen grain |
Having more or less isodiametric, regularly disposed lacunae. |
anticlinal |
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orientation |
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Perpendicular to some given plane of reference; applied especially to the plane of cell division when it is oriented at right angles to the generalized plane of the structural surface. |
submergent |
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location |
structure of aquatic plant |
Descending from above the water surface to a point beneath it. |
laminate |
|
architecture |
foliaceous structure |
Having an expanded, more or less planate, distal portion (lamina or blade). |
prickle |
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STRUCTURE |
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Any unvascularized spine-like enation originating in the epidermis, cortex, or mesophyll of any shoot part. See also spine, thorn. |
architecture |
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CHARACTER |
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Composite structural configuration as to type, orientation, symmetry, insertion, position, fusion, presence, number, relative size, shape, texture, differentiation, and/or derivation of components and features. Overlaps conceptually with habit. |
herbaceous 1 |
|
habit |
plant |
Having no significant degree of secondary growth in any part of the shoot, which thus does not develop woody (lignified) tissue. |
seedling |
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PLANT |
|
A plant in the first stages of its growth following emergence from the seed. |
transverse 1 |
|
dehiscence |
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More or less perpendicular to the central axis. |
inferior 2 |
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position |
ovary |
Wholly enclosed by a floral tube casing, the distal portions of the perianth and/or androecium thus arising from its apex. |
microsporangium pl. microsporangia |
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STRUCTURE |
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A sporangium that produces microspores. |
inflated |
|
solid shape |
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Relatively thin-walled with an essentially empty interior largely enclosed by the walls, which are convex overall and appear taut, as though from internal pressure. See also swollen (turgid, tumid), which is not clearly distinct in its application. |
taprooted |
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architecture |
plant |
Having a taproot. See also diffuse-rooted, fibrous-rooted. |
microspore |
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STRUCTURE |
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A male spore; a spore of the smaller of the two types produced by the sporophytes of a heterosporous taxon; produced in a microsporangium; giving rise upon germination to a microgametophyte. |
perfoliate |
|
architecture |
foliaceous structure |
Having a sessile lamina (blade) that uninterruptedly encircles the bearing axis, which thus passes through it at some point within the margin. See also amplexicaulous, connate-perfoliate. |
caespitose |
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habit |
|
See cespitose. |
flagellum pl. flagella |
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STRUCTURE |
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A very slender whip-like structure that extends from the main body of an antherozoid and, by active undulation, propels the cell through a liquid medium. |
mucro pl. mucrones, mucros |
|
STRUCTURE |
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A short, hard, apical point that is a continuation of vascular tissue. See also apiculum. |
intricate |
|
arrangement |
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Entangled; irregularly intertwined and not readily disentangled. |