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oblanceolate |
|
plane shape |
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Inversely lanceolate (lancehead-shaped). |
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obdiplostemonous |
|
architecture |
flower, androecium |
Having the stamens dicyclic, the proximal whorl with members directly above the petals, the distal whorl with members directly above the sepals. See also diplostemonous. |
|
obdeltoid |
< three-angled, trigonous, triquetrous |
solid shape |
|
Three-angled (trigonous, triquetrous), broadest distally, and regularly attenuate to an angular base; inversely deltoid. |
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obdeltate |
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plane shape |
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Approximately equilaterally triangular, broadest distally, and regularly attenuate to an angular base; inversely deltate; equilaterally cuneate. |
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obcordiform |
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solid shape |
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Inversely cordiform (heart-shaped). |
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obcordate |
|
plane shape |
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Inversely cordate (heart-shaped). |
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obconic(al) |
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solid shape |
|
Transversely round, essentially triangular in median longitudinal section, and broadest distally; inversely conic(al) (cone-shaped). |
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obcompressed |
< flattened |
solid shape |
|
Flattened adaxially and abaxially, parallel to the longitudinal axis, as though pressed or squeezed from the upper and lower surfaces, the external surface otherwise basically convex. Used alone, this term usually implies a strong degree of flattening; otherwise, it is often used in combination with some other term that describes the overall shape exclusive of ("before") flattening, e.g., obcompressed-lanceoloid. See also compressed (complanate), depressed. |
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nutrition |
|
CHARACTER |
|
Mode of acquiring nutrients. |
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nutlet |
|
nominative |
fruit |
A small, relatively hard-coated mericarp; esp. in Lamiaceae (Labiatae), Verbenaceae. |
|
nutant |
= cernuous, nodding |
orientation |
stalked structure |
Having the stalk proximally erect and distally recurved, the main body thus oriented outward to downward. See also pendent (hanging, pendulous). |
|
nut |
|
nominative |
fruit |
Relatively large, indehiscent, one-loculed, one-seeded and with a thick, hard, sometimes osseous pericarp; derived from a single, simple or compound ovary. See also acorn (glans). |
|
nucellus pl. nucelli |
|
STRUCTURE |
|
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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notorhizal |
= incumbent |
arrangement |
cotyledons |
Adaxially contiguous and reflexed parallel to the hypocotyl and radicle, the abaxial surface of one lying against them. |
|
notched |
= emarginate |
apex |
laminar structure |
Having a relatively small, acute, distal sinus. |
|
notch |
= emargination |
FEATURE |
|
A relatively small, acute sinus at the distal end of a laminar structure. |
|
non-stomate-bearing |
= astomatiferous |
architecture |
|
Lacking stomates in the epidermis. |
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non-septate |
|
architecture |
trichome |
Lacking transverse inter- or intracellular septa or partitions. |
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non-porous |
|
porosity |
|
Lacking vessels, the tracheary elements limited to tracheids and, sometimes, fiber-tracheids. |
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nodulose |
|
solid shape |
|
Diminutively nodose; esp. roots of Fabaceae (Leguminosae), the nodules harboring nitrogen-fixing bacteria. |
|
nodule |
|
STRUCTURE |
|
A small nodiform (gongylodate, gongyloid, knob-shaped, knot-shaped) segment or protrusion; esp. in roots of Fabaceae (Leguminosae) and harboring nitrogen-fixing bacteria. |
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nodose |
= knobby, knotty |
solid shape |
|
Having nodiform (gongylodate, gongyloid, knob-shaped, knot-shaped) protrusions. See also nodulose. |
|
nodiform |
= gongylodate, gongyloid, knob-shaped, knot-shaped |
solid shape |
|
Approximately globose, the surface convoluted or not, like a knob or knot; usually applied only to structures or components that are relatively small. |
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node |
|
STRUCTURE |
|
One of the evident sectors of a stem that occur sequentially along its length and from which leaves (megaphylls) and lateral branches arise exogenously. The anatomy of nodes differs from, but is not abruptly distinct longitudinally from, that of the intervening sectors (internodes), with which it is smoothly confluent and from which is distinguished by the lateral transit and egress of vascular traces interconnecting the stem and the leaves and branches that it bears. |
|
nodding |
= cernuous, nutant |
orientation |
stalked structure |
Having the stalk proximally erect and distally recurved, the main body thus oriented outward to downward. See also hanging (pendent, pendulous). |
