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leptosporangiate |
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reproduction |
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Having relatively small sporangia each of which develops from a single initial cell that, by periclinal division, gives rise to an outer and an inner cell, the former then giving rise to the entire sporangium, including contents and sporangiophore, the latter contributing nothing to it; in some Polypodiophyta. |
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herbaceous 2 |
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texture |
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Composed entirely of relatively soft, non-woody (unlignified) tissues derived from primary growth. |
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sawtooth |
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STRUCTURE |
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One of a series of regularly spaced, angular, marginal convexities oriented at an acute angle to the generalized perimeter of a laminar structure. See also sawtoothlet, scallop (crena), scalloplet (crenule), tooth, toothlet. |
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basicaulous |
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position |
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At or very near the stem base. |
|
orientation |
|
CHARACTER |
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Attitude or direction with respect to some explicit or implicit structure(s) or context. The lexicon relating to orientation includes some conceptually complex terms whose meanings also embrace aspects of structural composition or shape. Overlaps conceptually with arrangement, habit, insertion, position, and shape. |
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dimidiate |
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plane shape |
|
Halved, figuratively; bilaterally asymmetric, nearly or wholly lacking one side as implicitly compared with some corresponding bilaterally symmetric structure, real or imagined. |
|
flesh |
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STRUCTURE |
|
Tissue that is fairly firm and dense, juicy or at least moist, and easily cut. |
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location |
|
CHARACTER |
|
Position with respect to aspects of environmental context. |
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adnate |
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fusion |
dissimilar structure(s) |
Intimately fused with or to one or more other dissimilar structures, the connection(s) with strong histological continuity. See also connate. |
|
follicetum pl. folliceta |
|
STRUCTURE |
|
An aggregate of follicles produced from a single flower with multiple simple pistils. |
|
sub-basifixed |
|
fixation |
|
Attached just above its base. |
|
complete |
|
architecture |
flower |
Having all sets of basic floral structures (calyx and corolla, or else undifferentiated perianth; androecium; and gynoecium) present and functionally normal. |
|
inframedial |
|
insertion |
|
Slightly below the middle of the structure in point. |
|
sheath (leaf) |
|
STRUCTURE |
|
The lower (basal or proximal), fundamentally laminar but strongly involute portion of one of the non-petiolate leaves characteristic of most monocotyledons (Liliidae); distinct from the leaf blade, which, when present, is borne distally upon it; analogous, though not necessarily homologous, with a petiole; usually more or less completely enclosing a portion of the stem above the node from which the leaf is borne. |
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involucre 2 |
|
STRUCTURE |
|
One or more closely proximate whorls, or a compact spiral, of bracts (phyllaries) surrounding (proximal to) the compound receptacle (torus) and florets of a capitulum (head); in Asteraceae (Compositae). |
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periclinal |
|
orientation |
|
Parallel to some given plane of reference; applied especially to the plane of cell division when it is oriented parallel to the generalized plane of the structural surface. |
|
size |
|
CHARACTER |
|
Nature as to absolute or comparative extent in any one dimension or in area or volume. |
|
ventrifixed |
|
fixation |
|
Attached on the adaxial side well above the base. |
|
annual 1 |
|
duration |
plant, stem |
Normally living one year or less; growing, reproducing, and dying within one cycle of seasons. |
|
monopodial |
|
architecture |
axes |
Branching laterally, each axis of each order of branches produced by a single, persistently dominant, apical meristem. See also sympodial. |
|
costal |
|
insertion |
|
Upon or otherwise directly associated with the costa(e) of a laminar structure. |
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pilosulous |
|
pubescence |
|
Finely pilose. |
|
watery |
|
texture |
|
Liquid and weakly cohesive, flowing freely; like water. This term often implies also transparency. |
|
epulvinate |
|
architecture |
inflorescence axis, petiole |
Lacking a pulvinus. |
|
nectar |
|
SUBSTANCE |
|
An aqueous exudate of high sugar content. |
