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filament |
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STRUCTURE |
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The stalk, when present, of a stamen, clearly differentiated from and bearing at its summit an anther. |
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shoot 2 |
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STRUCTURE |
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A vascularized axis that is differentiated into nodes and internodes and that branches exogenously from the former, together with any non-axial structures borne from it. |
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tuber |
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STRUCTURE |
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An enlarged, basically subterranean stem segment or thallus outgrowth containing a high proportion of storage tissue and functioning as a perennating and often vegetatively propagative structure. |
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androgynophore |
< stalk |
STRUCTURE |
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A stalk that rises above the level of perianth insertion and bears the free portions of both androecium and gynoecium from its summit; as in Passifloraceae. |
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barb 2 |
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STRUCTURE |
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A trichome terminated by one or two small, relatively short, stiff, sharp, acutely reflexed appendages. |
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microsporophyll |
> cone scale |
STRUCTURE |
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A sporophyll that bears only microsporangia. |
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translator arm |
= caudicle |
STRUCTURE |
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An attenuate end portion by which a pollinium adheres to a pollinating insect, either directly or by means of a terminal viscidium, the latter, when present, sometimes attached by an intervening stipe; esp. in Asclepiadaceae, Orchidaceae. |
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bulblet |
= bulbil |
STRUCTURE |
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A small bulb-like structure produced from a sterile or fertile plant structure other than a bulb, usually within a leaf axil, leaf sinus, or inflorescence, serving as a vegetative propagule. |
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replum pl. repla |
< dissepiment, septum |
STRUCTURE |
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The persistent wall or partition that separates the two locules of a silicle or silique. |
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second glume |
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STRUCTURE |
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The upper (distal) member of a pair of small bracts inserted at the base of a grass (Poaceae) spikelet. |
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infructescence 1 |
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STRUCTURE |
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A mature (fruiting) inflorescence (static sense). |
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bract 1 (broad sense) |
> bracteole, bractlet, phyllary, prophyll(um); >< scale |
STRUCTURE |
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Any lateral structure ontogenetically and anatomically analogous with, and therefore presumably homologous with, but relatively smaller than, a leaf, especially when subtending an inflorescence, other reproductive structure, or portion thereof; putatively, an evolutionarily reduced leaf. |
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epicalyx pl. epicalyces |
= calyculus |
STRUCTURE |
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A whorl of bracts immediately subtending (beneath or outside) a calyx. |
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xylem |
= wood |
STRUCTURE |
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The water-conducting and usually main supporting tissue of a plant or portion thereof, characterized by the presence of tracheary elements (tracheids and sometimes vessel elements); the lignified tissue of a plant or component structure, composed almost entirely of secondary tissue, i.e., that derived by secondary or lateral growth from a cambium in structures a season or more old. See also sapwood, heartwood. |
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carpophore 2 |
= columella; < stalk |
STRUCTURE |
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Any pedestal-like prolongation of a floral receptacle extending beyond the distalmost level of perianth insertion and bearing the gynoecium. |
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pistillode |
= pistillodium |
STRUCTURE |
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Any sterile structure deemed to represent a modified pistil, homology being inferred on the basis of structural similarity, ontogeny, and/or position; sometimes nectariferous, sometimes connate with others or adnate to other floral structures. |
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short-shoot |
= spur |
STRUCTURE |
|
A first- or higher-order woody stem branch having relatively unelongated internodes, thus proximate nodes, and limited duration of growth, usually branching little if at all; often a main locus of flower production; usually more or less perpendicular to the axis that bears it and resembling a spur projecting from it; sometimes becoming more or less spinose after elongation ceases; esp. in Rosaceae. |
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staminodium pl. staminodia |
= staminode |
STRUCTURE |
|
Any sterile structure deemed to represent a modified stamen, homology being inferred on the basis of structural similarity, ontogeny, and/or position; sometimes petaloid, sometimes nectariferous, sometimes connate with others or adnate to other floral structures. |
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horn |
= corniculum |
STRUCTURE |
|
A straight or curved, slenderly conic or conoidal protrusion or terminal portion that resembles an animal horn. |
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microstrobilus |
= male cone |
STRUCTURE |
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A strobilus (cone) whose fertile organs are all microsporophylls. |
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coleorhiza |
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STRUCTURE |
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A sheath-like structure enclosing the radicle (embryonic root) in an embryo; esp. in Poaceae (Gramineae). |
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petal |
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STRUCTURE |
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One of the one or more constituent members of a corolla; colored and showy in many taxa, inconspicuous in size and/or color in others; may be distinct or else connate with one or more others, and/or may be free or else adnate to one or more other floral structures. |
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pseudobulb |
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STRUCTURE |
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An enlarged internode of an aboveground stem, storing water and photosynthate, resembling a bulb; esp. in Orchidaceae. |
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spur 1 |
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STRUCTURE |
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A hollow protrusion from a calyx or corolla, often nectariferous. |
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cladode |
= cladophyll, phylloclade |
STRUCTURE |
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A stem segment that functions as a leaf; often more or less compressed. |
