costule |
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STRUCTURE |
|
A longitudinal primary vein in a diminutive laminar structure, such as the blade of a leaflet, pinna or pinnule; a diminutive costa (rib). |
tuberculose 2 |
= tubercular |
solid shape |
|
Comprising small knot-like segments. |
oleaginous 2 |
= greasy, oily, unctuous |
texture |
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Liquid or deformably solid, cohesive, and slippery to the touch. |
hyaline |
= pellucid; > translucent, transparent |
coloration |
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Transmitting light uniformly. |
strigulose |
= strigillose |
pubescence |
|
Finely strigose. |
cirrhous |
|
apex |
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Having a narrow spiral tip that is a continuation of the central primary vein. |
basifixed |
|
fixation |
|
Attached at its base. |
rachilla 1 var. rhachilla |
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STRUCTURE |
|
A second- or higher-order axis of a compound leaf blade, bearing higher-order rachillae, leaflets, pinnules and/or tendrils. |
mitriform |
= mitre-shaped |
solid shape |
|
Broadest and transversely round to oval proximally, tapering bilaterally above the middle to a central peak; like a peaked hat or cap. |
…dentate 1 |
= …-toothed |
apex |
|
Generally truncate but with the number of antrorse, attenuate, distal lobes indicated by the prefix; as in tridentate. |
vernation |
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CHARACTER |
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Disposition of leaves in the bud. |
glossy |
= laevigate, lustrous, polished, shining, shiny |
reflectance |
|
Uniformly reflecting a high proportion of incident light at all angles. |
spheroid(al) |
= globose, globular, orbicular, rotund, spheric(al) |
solid shape |
|
Uniformly convex, circular in any median section and in outline when viewed from any angle; like a sphere or globe. |
plane shape |
|
CHARACTER |
|
Overall two-dimensional form or aspect(s) thereof. Overlaps conceptually with architecture, arrangement, habit, insertion, orientation, and position. |
isodiametric |
|
architecture |
|
Of approximately constant breadth in all median planes. |
convolute 1 |
= contorted |
aestivation |
|
Imbricate and whorled, each member in turn overlapped by that to one side and overlapping that to the other, the whole tightly rolled and appearing as though twisted. |
root 2 |
= radix |
STRUCTURE |
|
A vascularized, primary or higher-order (branch) axis that is not differentiated into nodes and internodes and that branches endogenously, together with any non-axial structures borne from it; usually growing below ground level, but sometimes structurally and functionally specialized and growing wholly or partly aboveground (e.g. aerial root, knee root, pneumatophore). |
oblate |
|
solid shape |
|
Symmetrically elongate and broader than long perpendicular to the developmental or polar axis. |
dusty |
= lentiginose, lentiginous |
coating |
|
Covered with a more or less even deposit of minute, dry, macroscopically indistinguishable particles. See also powdery (pulverulent), which is not clearly distinct in its application. |
axe-shaped |
= dolabriform |
solid shape |
|
Elongate, basally terete, becoming strongly compressed toward an abruptly and unilaterally broader apex; like an axe (handle plus head). |
pubescence |
|
CHARACTER |
|
Collective aspect of trichomes borne on the surface. Many of the terms traditionally used for describing pubescence have been defined and used in so many differing and often contradictory ways that they have become hopelessly ambiguous. This is attributable mainly to overdefinition within this portion of the traditional lexicon — that is, to highly arbitrary and widely variant restriction of a term's scope to some one detailed combination of trichome character states (shape, size, orientation, etc.). By derivation these are essentially general terms, really suited only for denoting overall aspect. The diversity actually encountered in nature defies comprehensive and unambiguous resolution into any limited suite of precisely specified, mutually exclusive, complex character states that can be associated with these terms, which are best used only in their general senses. Sometimes, such description will be sufficient in itself; more often, additionally or alternatively, the various attributes of the individual trichomes should be described. This is the only strategy that allows for full description of any possible condition, including the presence of more than one type of trichome. The various terms used for describing pubescence have never been semantically consistent; in some cases they refer to the trichomes themselves, while in others they apply to the bearing surface or structure; e.g., sericeous (the trichomes themselves are collectively silky) versus barbate (the structure is bearded). See also coating, indumentum (vesture). |
tri… 2 |
= thrice-…, triple-… |
prefix |
|
Indicating presence of three hierarchical orders of the type of entity or pattern denoted by the term's stem; as in tripinnate. See also entries for particular terms beginning with this prefix whose meanings, at least in some applications, are more specific than usually indicated by such combination. |
median |
= central, medial |
position |
|
At, upon, or closely ranged about the structural or symmetrical midpoint or axis. |
cyclic |
= seriate, verticillate, whorled |
arrangement |
|
Disposed along the axis in groups of three or more, the members of each group (cycle, series, verticil, whorl) inserted around the axis at the same level. |
flange |
|
STRUCTURE |
|
A relatively broad, circumferential rim or ridge that protrudes laterally. |