barb 2 |
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STRUCTURE |
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A trichome terminated by one or two small, relatively short, stiff, sharp, acutely reflexed appendages. |
mammose |
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solid shape |
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Having mammae. |
amplexicaul |
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architecture |
foliaceous structure |
See amplexicaulous. |
naked 1 |
|
architecture |
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Lacking a covering that might have been expected. |
aestivation |
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CHARACTER |
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Disposition of perianth (undifferentiated), calyx, or corolla members in the bud. |
diaphragmed |
|
architecture |
pith |
Uninterrupted by cavities but heterogeneous in texture at axis maturity, with sectors of spongy tissue separated by relatively thin transverse plates of denser tissue that occur at the nodes or are otherwise regularly spaced along the axis. |
canalicular |
|
insertion |
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Upon or otherwise directly associated with the channel of a petiole or petiolule. |
monochlamydeous |
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architecture |
flower |
Having a monocyclic perianth. |
supramedial |
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position |
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Just above the middle of the structure in point. |
decurrent |
|
base |
laminar structure |
Having the lamina prolonged and adherent to the supporting axis beneath the point of vascular insertion, the prolonged portion termed a sterigma. |
oblong 2 |
|
solid shape |
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Compressed-ellipsoid, the sides approximately parallel from near one end to near the other. See also ellipsoid(al). |
dorsiventral |
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architecture |
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Having structurally distinct abaxial (dorsal) and adaxial (ventral) portions or aspects. |
non-porous |
|
porosity |
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Lacking vessels, the tracheary elements limited to tracheids and, sometimes, fiber-tracheids. |
disciform 2 |
|
architecture |
capitulum (head) |
Bearing one or more peripheral series of florets that are usually pistillate and that have relatively slender actinomorphic corollas, and one or more central series of florets that are bisexual or functionally staminate and that have relatively broader actinomorphic corollas; in Asteraceae (Compositae). |
pachycaulous |
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architecture |
plant |
Having thick, more or less succulent stems. |
coating |
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CHARACTER |
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Exudate that covers the surface proper. See also indumentum (vesture), pubescence. |
trilete |
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architecture |
spore |
Having a triradiate tetrad scar. |
elaiosome |
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STRUCTURE |
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A fleshy outgrowth from the seed coat (testa) that contains a high proportion of oil, usually attracting ants for dispersal. |
circumscissile |
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dehiscence |
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Splitting transversely through the exterior wall about its entire circumference, the resulting upper cap-like portion falling away. |
extrafloral |
|
insertion |
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Outside and proximal to the flower; esp. nectaries. |
continuous 3 |
|
architecture |
rachilla, rachis |
Not disarticulating at maturity. |
equatorial ridge |
|
FEATURE |
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A circumferential ring about a megaspore in the plane of its equator, raised above the remainder of the wall surface; in some heterosporous taxa of Polypodiophyta. |
…pinnate |
|
architecture |
foliaceous structure |
Compound with the number of orders of leaflets indicated by the prefix, each order pinnate; as in bipinnate, tripinnate. |
fixed |
|
fixation |
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Attached to the bearing structure in a manner allowing no significant rotation or declination in relation to it. |
peripterous |
|
solid shape |
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Alate with a single transversely encircling wing. |