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symmetric(al) 1 |
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architecture |
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Divisible into essentially equal halves along one or more lines or planes. |
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cotyloid |
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architecture |
flower |
Having general adnation among the different sets of floral structures, thus having the ovary inferior and/or having a floral tube. |
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lacuna pl. lacunae |
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FEATURE |
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A hole or cavity; an empty space surrounded by tissue in two or three dimensions. |
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tendril |
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STRUCTURE |
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A slender stem branch, modified leaf, or portion of a leaf that twines about a supporting structure. |
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centralium pl. centralia |
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FEATURE |
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A central longitudinal cavity within the seed; esp. in Arecaceae (Palmae). |
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rugulose |
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relief |
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Slightly or finely rugose (corrugate, wrinkled). |
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throat 1 |
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STRUCTURE |
|
The far distal portion of a perianth, calyx, or corolla tube, or of a leaf sheath, surrounding the orifice of the tube or sheath, sometimes constricted relative to the diameter of the main body of the tube or sheath; except in disc florets of Asteraceae (Compositae). |
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cymulose |
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architecture |
inflorescence |
Comprising one or more cymules. |
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circinate 1 |
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solid shape |
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Terete and rolled downward from the apex in a tight coil. |
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ligulate 2 |
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architecture |
floret |
Bisexual with a zygomorphic corolla; in Asteraceae (Compositae). |
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staminodial |
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position |
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Upon or otherwise directly associated with the staminodes. |
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odorless |
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odor |
|
Lacking a distinct odor. |
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tree |
|
nominative |
plant |
Perennial, woody, more or less erect, relatively tall, with one or more distinct aboveground portions each with a single, relatively stout, columnar, main stem (trunk or bole) that bears branches. See also bush, frutex, shrub, subshrub, suffrutex, undershrub, woody clump. |
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secondary root |
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STRUCTURE |
|
Any root branch that originates directly or indirectly from a primary root. |
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disc floret |
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STRUCTURE |
|
A floret that has an actinomorphic corolla, is bisexual, functionally staminate, or functionally pistillate, and is borne in a radiate, discoid, disciform, or radiant capitulum (head) interior (distal) to any peripheral series of differing florets that may be present; in Asteraceae (Compositae). |
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aciculate |
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coloration |
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Having fine, irregularly oriented, straight streaks of contrasting hue and/or intensity. |
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floating 2 |
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location |
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At or upon the surface of water. |
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longitudinal 2 |
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orientation |
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Parallel to the long axis of the context of reference. |
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pseudobulb |
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STRUCTURE |
|
An enlarged internode of an aboveground stem, storing water and photosynthate, resembling a bulb; esp. in Orchidaceae. |
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coetaneous |
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maturation |
dissimilar structures |
Maturing concurrently. This adjective is frequently used to mean contemporary maturation of leaves and flowers, but without actually stipulating that those are the structures involved. Such usage is erroneous according to the construction and literal meaning of the term, which properly applies to structures, not to the taxon or plant. See also synanthous. |
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marginal |
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position |
|
Upon or otherwise directly associated with the margins. |
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concentric |
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position |
|
Having a center or axis of symmetry coincident with that of the context of reference. |
|
bud |
|
STRUCTURE |
|
A rudimentary, unexpanded stem, stem branch, inflorescence, inflorescence branch, or flower, or a combination thereof, in a resting state; enveloped or not by subtending protective scales. |
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vallecular |
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position |
|
In or otherwise directly associated with the valleculae; esp. in fruits of Apiaceae (Umbelliferae). |
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elaminate |
|
architecture |
foliaceous structure |
Lacking an expanded, more or less planate, distal portion (lamina or blade). |
