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epigynous |
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insertion |
perianth, calyx, corolla, androecium |
Having its proximal portion adnate to the full length of the gynoecium, the free portion thus arising from the apex of the gynoecium. See also hypogynous, perigynous. |
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antisepalous |
|
position |
equivalent floral structures |
Each inserted directly above or below a sepal. In place of this term, the phrase "opposite the sepals" is often used, but that contradicts the sense of opposite as otherwise employed (arrangement of lateral structures along an axis) and should be avoided. |
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muriculate |
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relief |
|
Finely muricate. |
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retuse |
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apex |
|
Round overall with an obtuse terminal sinus. |
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syncolpate |
|
architecture |
pollen grain |
Having two or more fused or confluent surficial grooves (colpi). |
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laminar 1 |
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insertion |
|
Upon or otherwise directly associated with the lamina (blade) of a foliaceous structure. |
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spinulose |
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margin |
|
Finely spinose. |
|
habit |
|
CHARACTER |
|
General appearance and/or function, usually including explicit or implicit reference to one or more aspects of habitat or other features of the external environment; a logically imprecise traditional category of terms that overlaps conceptually with architecture, arrangement, duration, insertion, location, orientation, position, shape, and texture. |
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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. |
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tertiary vein |
|
STRUCTURE |
|
A strand belonging to the third order of vasculature in a leaf or other basically laminar structure, except when that is the ultimate order (consisting of veinlets); branching from a primary or secondary vein. See also costa, lateral vein, primary vein, rib, secondary vein, veinlet. |
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cuniculate |
|
solid shape |
elongate structure |
Hollow over a significant part of its length, the interior open at the end of the hollow portion. |
|
chaff 2 |
|
STRUCTURE |
|
Collectively, the glumes, lemmata, and paleae of mature spikelets; in Poaceae (Gramineae). |
|
pollen |
|
STRUCTURE |
|
Collectively, the spores or grains produced within the thecae of anthers, each containing a very small microgametophyte (or its evolutionary homologue); serving as disseminules from which microgametes are released after transport to a receptive micropylar pollen droplet (in Pinophyta) or stigma (in Magnoliophyta) by a variety of vectors, notably wind, water, insects, bats, and birds. |
|
obovate |
|
plane shape |
|
Inversely ovate (egg-shaped). |
|
decussate |
|
arrangement |
|
Opposite with successive pairs radially oriented at right angles to one another, thus polystichous with four equidistant ranks. |
|
linear 2 |
|
plane shape |
|
Elongate and narrow with the sides more or less straight and parallel over most of its length. |
|
stephanocolporate |
|
architecture |
pollen grain |
Stephanocolpate, each groove containing a pore. |
|
fissure |
|
FEATURE |
|
A relatively narrow, split or crack in the outer tissue(s) of a structure. |
|
trilete |
|
architecture |
spore |
Having a triradiate tetrad scar. |
|
dichotomous |
|
architecture |
axis |
Branching by division of the apical meristem producing two coordinate but not necessarily equal derivatives from each division. |
|
hypocotyl |
|
STRUCTURE |
|
That portion of an embryo axis between the level of cotyledon insertion above and the root meristem (or radicle, if present) below. |
|
actinocytic |
|
architecture |
stomate |
Having several subsidiary cells oriented radially to its center. |
|
flower |
|
STRUCTURE |
|
A functionally integrated, complex structure comprising sets of sporophytic and/or associated sterile structures disposed in standard sequence along a common axis; consisting of one or more constituent members each of, in ascending (proximal to distal) order of insertion, perianth (tepals, or else sepals and/or petals), androecium (stamens, staminodes and/or other associated structures), and/or gynoecium (pistils and/or other associated structures), the foregoing all borne laterally from the distal portion (receptacle) of the axis; depending upon the combination of structures present, may be bisexual, staminate only, pistillate only, or sterile; characteristic of and unique to the Magnoliophyta (Angiospermae). When a fertile androecium and gynoecium are both present a flower is termed perfect. When perfect and also with calyx and corolla both present, a flower is termed complete. Both terms are somewhat archaic and of limited descriptive value. |
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puberulent |
|
pubescence |
|
Finely pubescent in the restricted sense of that term. |
|
strict |
|
course |
|
Lacking any curve or bend. |
