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tetrad |
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STRUCTURE |
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A group of four pollen grains originating from a single pollen mother cell. |
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ampulliform |
= flask-shaped, lageniform |
solid shape |
|
Generally circular in cross-section, broadest at or below the middle, approximately globose below that and constricted above to a relatively narrow neck; like a flask. |
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one-sided 3 |
= unilateral |
position |
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Upon or arising from one side only of the bearing structure. |
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squamella 1 pl. squamellae |
= squamule; < scale, trichome |
STRUCTURE |
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A diminutive squama (lepis). |
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praemorse |
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apex |
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Truncate with the distal margin irregular or ragged, as if chewed. |
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fine-pitted |
= foveolate, scrobiculate |
relief |
|
Finely pitted (foveate). |
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turgid |
= swollen, tumid |
solid shape |
|
Engorged in appearance, convex overall with the surface appearing taut, as though from internal pressure. See also inflated, which is not clearly distinct in its application. |
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cauline |
|
insertion |
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Upon, arising from, or otherwise directly associated with the stem. |
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subcircular |
= subround; suborbicular misapplied, subrotund misapplied |
plane shape |
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Compressed circular or very broadly elliptic, only slightly longer than wide. |
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embryo |
|
STRUCTURE |
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The rudimentary spermatophyte contained within a viable seed. |
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jointed |
= articulate(d) |
architecture |
|
Elongate with one or more distinct, relatively narrow zones of demarcation between adjacent main portions of the whole, these joints (articulations) often thicker and sometimes sites of eventual abscission. |
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aerial root |
> climbing root |
STRUCTURE |
|
A root, adventitious or not, that originates and functions entirely above ground during the normal life cycle of the plant. |
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radicle |
|
STRUCTURE |
|
The primary root, or its primordium, in an embryo; the portion of an embryo axis that develops into the root. |
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…furrowed |
= …colpate, …fossulate, …grooved, …sulcate, …valleculate |
architecture |
|
Having the number of furrows indicated by the prefix; as in five-furrowed, 3-furrowed. |
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vexillum pl. vexilla |
= banner, standard |
STRUCTURE |
|
The relatively large, erect adaxial (upper) petal in a papilionaceous corolla. |
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fusiform |
= spindle-shaped |
solid shape |
|
Elongate, transversely round, broadest at the middle and regularly attenuate to either end. |
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villose |
= shaggy, villous |
pubescence |
|
Bearing sparse, long, slender, soft, capillate trichomes that are not intertwined. See also villosulous. |
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greasy 2 |
= oily, oleaginous, unctuous |
texture |
|
Liquid or deformably solid, cohesive, and slippery to the touch. |
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spinose 2 |
= echinate, spiny |
architecture |
|
Bearing spines. See also spinulose. |
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basicaulous |
|
insertion |
|
At or very near the stem base. |
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columella 2 pl. columellae, columellas |
= carpophore; < stalk |
STRUCTURE |
|
The stalk supporting a mericarp after dehiscence of a schizocarpic fruit, the central axis of the fruit having split longitudinally to yield two or four such stalks; composed of receptacular and (primarily) gynoecial tissues; esp. in Apiaceae (Umbelliferae). |
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tapeworm-shaped |
= taeniate |
solid shape |
|
Slender, elongate, basically cylindric or compressed-cylindric with shallow, narrow, more or less regular constrictions along its length, the whole apparently segmented and straight or variously curved. |
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ligule 3 |
|
STRUCTURE |
|
A relatively small, attenuate, membranous, laminar enation from the adaxial surface of a leaf near its base; in Selaginella, Isoetes. |
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obtrulliform |
= obtrullate |
plane shape |
|
Inversely trulliform (trowel-shaped, trullate). |
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denticulate |
= small-toothed |
margin |
|
Finely dentate (toothed). See also crenate (scalloped), crenulate (small-scalloped), serrate (sawtoothed), serrulate (small-sawtoothed). |
