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microphyll |
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STRUCTURE |
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A small, lateral, leaf-like enation that, evolutionarily, is not a true leaf, i.e., whose vasculature, if any, consists of only a single median strand not ontogenetically integral with the vasculature of the bearing stem and not associated with leaf gaps in the stele of the stem; in Bryophyta, Psilotophyta, Lycopodiophyta, Equisetophyta. |
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ramentaceous |
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pubescence |
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Of small, fragile, scarious, planate trichomes. |
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calyculate 2 |
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architecture |
flower |
Subtended by a calyculus (epicalyx). |
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isodiametric |
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architecture |
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Of approximately constant breadth in all median planes. |
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peripheral |
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insertion |
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Upon or otherwise directly associated with the outer surfaces or regions of a three-dimensional structure. Although use of this term in two-dimensional contexts is technically correct, traditionally the term marginal is preferred in such cases. |
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anthela pl. anthelae |
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nominative |
inflorescence |
A cyme with the main axis markedly shorter than the lateral axes, appearing generally paniculate when compound; esp. in Juncaceae. |
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replicate |
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vernation |
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Each with the distal portion of its blade recurved, paralleling and contiguous with the proximal portion. |
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symbiotic |
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nutrition |
plant |
Partially dependent for essential nourishment upon other living organisms that derive some reciprocal benefit from the relationship. |
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cotyliform |
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solid shape |
perianth, calyx, corolla |
Having a short, relatively broad, cupulate tube and a well differentiated, erect limb. See also cyathiform, urceolate (urn-shaped). |
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spike |
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nominative |
inflorescence |
An elongate, determinate or usually indeterminate axis bearing sessile flowers inserted singly along it, unbranched or sometimes bearing lateral branches of the same nature. |
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weak |
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texture |
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Very pliable and unresilient. |
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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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appressed |
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orientation |
lateral structure |
Angled at or near the base and closely flattened against the surface of the bearing structure, thus more or less parallel to it. |
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gynaecium |
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STRUCTURE |
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See gynoecium. |
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ridged |
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solid shape |
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Having one or more ridges; esp. fruits of Apiaceae (Umbelliferae). |
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zygomorphic |
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architecture |
perianth, calyx, corolla |
Bilaterally symmetric; divisible into two essentially equal portions along only one median logitudinal plane. |
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faceted |
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solid shape |
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Having numerous, relatively small, flat or shallowly curved portions of the external surface that are bounded by more or less distinct angular discontinuities in that surface. |
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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 |
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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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odor |
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CHARACTER |
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Olfactory stimulation. |
