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adventitious bud |
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STRUCTURE |
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A vegetative or floral bud that arises directly from a root or from some site on a shoot other than a leaf axil or stem apex. |
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tetradal |
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arrangement |
pollen |
Shed in groups of four, each an intact tetrad with original configuration unchanged; geometric arrangement of the grains may be tetrahedral, tetragonal, or linear, depending upon mode of pollen mother cell division. |
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palate |
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STRUCTURE |
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The lower, prominent labium (lip) of a personate (gaping, ringent) corolla. |
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enzymatic |
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exudation |
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Secreting a digestive exoenzyme; in carnivorous plants. |
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anisophyllous |
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architecture |
plant, axis |
Heterophyllous and bearing leaves of two or more distinct sizes or shapes on the same plants. |
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tortuous |
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course |
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Strongly irregular with sharp bends and/or curves. |
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extravaginal |
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position |
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Distal to or outside the leaf sheath. |
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pappus scale |
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STRUCTURE |
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A pappus element that is more or less planate and relatively thin and broad; may terminate in one or more awn- or bristle-like appendages. |
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unequal |
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size |
equivalent structures |
Distinctly differing in extent. See also equal, subequal. |
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erect |
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orientation |
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Perpendicular to the horizon or to the general plane of a bearing structure. |
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flaccid |
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texture |
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Limp, sometimes appearing withered or shrunken. See also tumid (swollen, turgid). |
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perulate |
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architecture |
bud |
Having outer scales that enclose and protect the embryonic components, from which they differ significantly in texture, shape, size, relief and/or vestiture. See also naked. |
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fibrous |
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texture |
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Having tough, woody or sclerotic strands distributed through a softer matrix. |
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…porate |
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architecture |
pollen grain |
Having the number of pores indicated by the prefix; as in monoporate, polyporate, triporate. |
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vascular bundle |
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STRUCTURE |
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A discrete strand of conducting tissues (xylem, phloem) and associated cells (e.g., cambium) within a stem or other axial structure. |
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racemose |
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architecture |
inflorescence |
Comprising one or more racemes. |
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gynandrous |
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architecture |
flower |
Having the androecium adnate to the gynoecium. |
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runcinate |
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plane shape |
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Basically obovate with a series of retrorse, acute lobes on either side, these diminishing in size toward the base. |
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root 1 |
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STRUCTURE |
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Collectively, all those portions of a plant body that are anatomically distinct from the shoot, the component axes not differentiated into nodes and internodes, and branching endogenously. |
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branchlet |
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STRUCTURE |
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A branch of the highest or ultimate order. |
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collar 2 |
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FEATURE |
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The junction between the sheath and blade of a leaf; esp. in Poaceae (Gramineae). |
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intruded |
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placentation |
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Upon partial septa excrescent from the wall of a compound, unilocular ovary. |
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cap cell |
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STRUCTURE |
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The single cell, or one of the several cells, forming the uppermost (distal) portion of an antheridial wall. |
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infrafoliar |
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insertion |
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Upon the stem directly below a leaf insertion. |
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laminar 2 |
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solid shape |
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Relatively very thin with parallel opposite broad faces, the whole plane or variously curved. Structures to which this term, along with any other three-dimensional ones, is applicable are often also described as though only two-dimensional, using terms that are implicitly understood to refer only to the outline of the broad faces. |
