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reproduction |
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CHARACTER |
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Type, morphology, disposition, function and/or dissemination of reproductive structures. |
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secondary root |
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STRUCTURE |
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Any root branch that originates directly or indirectly from a primary root. |
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fossula pl. fossulae |
= colpus, furrow, groove, sulcus, vallecula |
FEATURE |
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An elongate depression that is relatively shallow and narrow. |
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hastula pl. hastulae, hastulas |
= ligule misapplied |
STRUCTURE |
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An outgrowth or enation from the petiole apex at its junction with the adaxial surface of a palmate leaf blade; often woody in texture; variously shaped, its adaxial outline usually resembling an inverted V or U, or a semicircle with the opening proximal; esp. in Arecaceae (Palmae). |
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subcircular |
= subround; suborbicular misapplied, subrotund misapplied |
plane shape |
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Compressed circular or very broadly elliptic, only slightly longer than wide. |
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infructescence 2 (not recommended) |
= coenocarp, multiple fruit, syncarp; > fig, syconium |
STRUCTURE |
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A compound fruit derived from the connate or coherent ovaries and accessory tissue(s), if any, of two or more adjacent flowers. |
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thorn |
= spine |
STRUCTURE |
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Any sharp, stiff, simple or branched, woody appendage having vascular tissues confluent with those of the bearing structure. "Spine" is often preferred when the appendage is homologous with a leaf or stipule, and "thorn" when it is homologous with a branch. See also prickle. |
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ligneous |
= woody |
texture |
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Of or resembling xylem (wood). |
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acrodromous |
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venation |
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Having two or more primary and/or strongly developed secondary veins that diverge at or above the laminar base and are thence convergently arcuate toward the apex, reaching it or not. |
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arcuate 1 |
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course |
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Curving more or less regularly in one direction. |
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lunate |
= crescent-shaped |
plane shape |
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Arcuate, broadest at the middle, and attenuate to acute ends; like the stylized outline of a first-quarter moon. |
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bract 1 (broad sense) |
> bracteole, bractlet, phyllary, prophyll(um); >< scale |
STRUCTURE |
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Any lateral structure ontogenetically and anatomically analogous with, and therefore presumably homologous with, but relatively smaller than, a leaf, especially when subtending an inflorescence, other reproductive structure, or portion thereof; putatively, an evolutionarily reduced leaf. |
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nine-… |
= ennea… |
prefix |
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Indicating presence of or constitution by nine entities of the type denoted by the term's stem; as in nine-carpelled, nine-loculed, nine-tepaled. |
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papillose |
= papillate |
relief |
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Having small, conoidal protrusions overall; appearing pimply. |
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corky |
= suberous |
texture |
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Firm, relatively light, discontinuous but strongly cohesive, and resilient. |
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plumose |
= feather-shaped |
solid shape |
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Having a slender central axis bearing two opposite ranks of numerous, closely proximate, ascending, very slender branches or appendages; resembling the generalized form of a feather. |
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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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scabrous 2 |
= rough, scabrate, scabrid, scabridous |
relief |
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Having small, stout, stiff, more or less acute protrusions. |
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diamond-shaped |
= rhomboid |
solid shape |
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Transversely square, broadest and longitudinally angular at the middle, regularly attenuate to angular ends, all faces essentially plane; like the stylized shape of a diamond. |
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epicarp |
= exocarp |
STRUCTURE |
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The outermost tissue layer of a pericarp. |
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scalariform |
= ladder-like |
arrangement |
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Disposed in vertical sequence with long axes horizontal and parallel. |
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flexuous var. flexuose |
= zig-zag |
course |
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Having alternating angular bends to either side, more or less straight between the bends. |
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small-toothed |
= denticulate |
margin |
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Finely toothed (dentate). See also sawtoothed (serrate), scalloped (crenate), small-scalloped (crenulate), small-sawtoothed (serrulate). |
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gynaecium |
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STRUCTURE |
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See gynoecium. |
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stomatal apparatus |
= stomate, stoma (broad sense) |
STRUCTURE |
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A localized functional epidermal unit consisting of a microscopic pore and two encircling specialized cells, the guard cells, which, through changes of turgor pressure in response to environmental conditions, regulate the size of the pore and thus the rates of transpiration and gas exchange through it; the whole surrounded or not by associated, cytologically distinctive epidermal cells, the subsidiary or accessory cells, which, when present, are regularly oriented in relation to it. |
