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drupelet |
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nominative |
fruit |
Diminutively drupe-like but derived from one of the simple, superior ovaries of an apocarpous flower, having a fleshy fruit wall and a hard seed (pyrene) within, a distinct constituent in an aggregate fruit; esp. in Rosaceae. |
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fruity |
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odor |
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Sweetly to pungently fragrant and reminiscent of fruit. |
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rachilla 1 var. rhachilla |
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STRUCTURE |
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A second- or higher-order axis of a compound leaf blade, bearing higher-order rachillae, leaflets, pinnules and/or tendrils. |
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subsidiary cell |
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STRUCTURE |
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One of the cytologically distinctive epidermal cells that are sometimes present in a stomate and that surround and are regularly oriented in relation to the guard cells. |
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connate |
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fusion |
equivalent structures |
Intimately fused, with strong histological continuity. |
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interrupted 2 |
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architecture |
inflorescence |
Having one or more gaps in an otherwise uniform distribution of flowers or branch units along the main axis. |
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percurrent 1 |
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architecture |
primary or secondary laminar veins |
Running through the entire length of the lamina (blade), or all the way to its margin. |
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simple 1 |
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architecture |
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Externally unitary and comprising only one basic morphological unit; not compound in either sense of that term. |
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monadal |
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arrangement |
pollen |
Shed singly, or essentially so, only loosely and irregularly, if at all, coherent, each original tetrad having separated fully. |
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spadix pl. spadices |
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STRUCTURE |
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A thick, fleshy, primary inflorescence axis bearing sessile flowers more or less sunken into its surface, the whole subtended and sometimes partially enclosed by a specialized bract, the spathe; esp. in Araceae. |
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coronal |
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insertion |
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Upon or otherwise directly associated with the corona. |
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knee 1 |
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STRUCTURE |
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An abrupt bend in an axial or other elongate structure. |
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spathaceous 1 |
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architecture |
plant, inflorescence |
Bearing a spathe or spathes. |
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epipetalous |
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position |
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Upon the petals, or partially adnate thereto and apparently arising therefrom. |
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apex pl. apices |
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CHARACTER |
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Configuration of the uppermost, distal, or terminal portion of a structure, its extent determined somewhat subjectively in relation to the shape of the structure as a whole. The concept of apex varies from one descriptive context to another, since the apex is not a clearly delimited, morphologically distinct entity. The terms for describing apical condition are not strictly coordinate logically — some are more inclusive than others, some describe conditions involving what can be regarded as appendages, and some refer to the apex in a developmental as well as a strictly topological sense — and precise characterization may require using more than one descriptor. The semantic antecedent of some descriptors is "apex," whereas the antecedent of others is the structure as a whole (e.g., leaf ). |
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rhachilla |
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STRUCTURE |
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See rachilla. |
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syngenesious |
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fusion |
flower, androecium |
Having the anthers connate or coherent and forming a ring. |
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laminate |
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architecture |
foliaceous structure |
Having an expanded, more or less planate, distal portion (lamina or blade). |
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pith |
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STRUCTURE |
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The central ground tissue of a stem or, when present, of a root, consisting of thin-walled parenchyma cells; distinct and more or less soft and spongy relative to the other tissues of the axis; sometimes partly or wholly degenerating after secondary growth has begun. |
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exindusiate |
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architecture |
sorus |
Lacking an indusium. |
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nodule |
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STRUCTURE |
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A small nodiform (gongylodate, gongyloid, knob-shaped, knot-shaped) segment or protrusion; esp. in roots of Fabaceae (Leguminosae) and harboring nitrogen-fixing bacteria. |
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cupule |
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STRUCTURE |
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A cup-like structure inserted at the base of a fruit, partially enclosing it or not; composed of a persistent, usually dried, sometimes hardened involucre, perianth, or portion thereof, the constituent parts often coalescent, yielding a unitary structure. |
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chalaza pl. chalazae, chalazas |
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STRUCTURE |
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The basal (proximal) portion of an ovule, adjacent to its junction with the funiculus. |
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lemma pl. lemmata, lemmas |
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STRUCTURE |
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The proximal bract of the (usually) two that immediately subtend the flower in a grass (Poaceae) floret; the other is the palea. |
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pollinial |
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arrangement |
pollen |
Polyadal with the grains of individual thecae (pollen sacs), or of fused thecae, compacted and forming tightly coherent masses (pollinia) that constitute the basic dispersal units, these sometimes distally attenuate to a sterile caudicle (translator arm), sometimes united by caudicles in groups of two or more, the caudicle(s) sometimes attached to a viscidium, either directly or through an intervening stipe; esp. in Asclepiadaceae, Orchidaceae. |
