seedling |
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PLANT |
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A plant in the first stages of its growth following emergence from the seed. |
geniculate |
= kneed |
solid shape |
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Elongate, abruptly bent, somewhat thicker at the angle, and appearing as though articulate like a leg at the knee. |
pappus pl. pappi |
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STRUCTURE |
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A set of one or more awns (aristae, bristles, setae) or scales at the summit of an inferior ovary just beneath or outside the free portion of the corolla; persisting in the fruit (cypsela) and often aiding wind or animal dispersal; in Asteraceae (Compositae). Considered by some to be an evolutionarily modified upper calyx portion, the lower portion having been incorporated into the floral tube casing adnate to the ovary wall; considered by others to be an outgrowth from the ovary wall. |
intercostal |
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position |
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Between the costae. |
suprabracteal |
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insertion |
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Upon the axes, each directly above (distal to) and very near a point of bract insertion. |
epicarp |
= exocarp |
STRUCTURE |
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The outermost tissue layer of a pericarp. |
rhachis |
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STRUCTURE |
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See rachis. |
caudate 2 |
= tailed |
base |
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With one or more relatively slender, retrorse basal enations or appendages. |
nodose |
= knobby, knotty |
solid shape |
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Having nodiform (gongylodate, gongyloid, knob-shaped, knot-shaped) protrusions. See also nodulose. |
zig-zag |
= flexuous |
course |
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Having alternating angular bends to either side, more or less straight between the bends. |
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. |
helical 1 |
= acyclic, spiral |
arrangement |
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Disposed helically about and along the axis, each on a different radius than the one(s) vertically adjacent. |
leaf 2 pl. leaves |
= microphyll |
STRUCTURE |
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A small, lateral, leaf-like enation that, evolutionarily, is not a true leaf, i.e., whose vasculature, if any, consists of only a single median strand not ontogenetically integral with the vasculature of the bearing stem and not associated with leaf gaps in the stele of the stem; in Psilotophyta, Lycopodiophyta, Equisetophyta. |
blade |
= lamina |
STRUCTURE |
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The expanded, more or less planate, distal portion, when present, of a leaf, leaflet or bract. |
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. |
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. |
scaly 1 |
> lepidote, squamate, squamellose, squamose |
pubescence |
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Bearing scales [squamae (lepides) or squamellae]. |
…colpate |
= …fossulate, …furrowed, …grooved, …sulcate, …valleculate |
architecture |
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Having the number of colpi indicated by the prefix; esp. pollen grains; as in monocolpate, polycolpate, 3-colpate. |
incurved |
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orientation |
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Curving adaxially. See also decurved. |
subtending |
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position |
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Arising from the axis just below and very near to the base of some other specified lateral structure. This term is meaningless if the structure that is subtended is not indicated. |
elater 1 |
|
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. |
mamillate |
|
relief |
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Bearing mamillae. |
unctuous 2 |
= greasy, oily, oleaginous |
texture |
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Liquid or deformably solid, cohesive, and slippery to the touch. |
sickle-shaped 1 |
= falcate |
plane shape |
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Elongate and laterally arcuate with the lateral edges more or less concentric, the degree of curvature decreasing distally or not; like the outline of the face of a sickle blade. |
almondy |
= hydrocyanic |
odor |
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Pungently fruity like almonds, due to the presence of hydrocyanin or a closely related compound. |