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ligule 4 |
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STRUCTURE |
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The distal, relatively flat portion of the zygomorphic corolla of a ligulate floret, terminating in 5 teeth or lobes; in Asteraceae (Compositae). |
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ray 2 |
= lamina |
STRUCTURE |
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The distal, relatively flat portion of the corolla of a ray floret, terminating in 0--4 teeth or lobes; in Asteraceae (Compositae). |
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epichilium |
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STRUCTURE |
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The distal portion of a labellum (lip) that has distinct proximal, distal, and sometimes also central parts; in Orchidaceae. See also hypochilium, mesochilium. |
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neck (archegonial) |
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STRUCTURE |
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The distal narrowed portion of an archegonium above its bulbous base. |
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palea 2 pl. paleae, paleas |
= pale, palet |
STRUCTURE |
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The distal bract of the (usually) two that immediately subtend the flower in a grass (Poaceae) spikelet; the other is the lemma. |
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ostiole |
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STRUCTURE |
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The distal aperture of a syconium (fig); in Ficus (Moraceae). |
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peduncle |
<stalk, stipe (broad sense, not recommended) |
STRUCTURE |
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The common stalk, when present, of a compound inflorescence or first-order subunit thereof, or of a solitary flower that is deemed to represent an evolutionarily reduced compound inflorescence. |
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mesochilium |
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STRUCTURE |
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The central portion of a labellum (lip) that has distinct proximal, distal, and central parts; in Orchidaceae. See also epichilium, hypochilium. |
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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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clinandrium pl. clinandria |
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FEATURE |
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The cavity in a floral column (gynostemium) within which the anthers are borne. |
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inflorescence 2 |
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STRUCTURE |
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The basic architectural unit of the flower-producing portion of a plant; comprising one or more flowers, their associated supporting axes (peduncles, main axes, branches and pedicels), if any, and the appendages thereto (bracts, bractlets or bracteoles or prophylls, involucres, involucels, and glumes), if any; delimited by the insertion or gradation of a single peduncle, peduncle cluster, pedicel, pedicel cluster, or sessile flower, as the case may be, directly upon or into some proximal vegetative structure not of one of these types; depending upon the type(s) of flowers included, may be bisexual (all flowers bisexual), staminate (all flowers staminate), pistillate (all flowers pistillate), sterile (all flowers sterile), or mixed (two or more types of flowers present); most appropriately described using nominative terms. |
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hypogynium pl. hypogynia |
= gynophore; < stalk, stipe (broad sense, not recommended) |
STRUCTURE |
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The basal portion of an ovary when constricted and stalk-like above the level of perianth insertion, bearing the main body of the pistil at its summit; in Cyperaceae. |
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gynophore |
= hypogynium; < stalk, stipe (broad sense, not recommended) |
STRUCTURE |
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The basal portion of an ovary when constricted and stalk-like above the level of perianth insertion, bearing the main body of the pistil at its summit. |
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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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apiculum 2 pl. apicula |
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STRUCTURE |
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The apex of a connective, when prolonged above the union of the anthers. |
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stoma 2 (strict sense) pl. stomata |
= stomatal pore |
FEATURE |
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The aperture between and regulated by the two guard cells of a stomate (stomatal apparatus). |
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epidermis pl. epidermides, epidermises |
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STRUCTURE |
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The anatomically distinct, outermost, living tissue that encloses and protects the other tissues of a plant organ or part, usually overlaid by an exuded waxy cuticle; resulting from primary growth, disrupted and shed as a consequence of secondary growth if that occurs; consisting mainly of cells not further specialized, otherwise including various types of more specialized cells associated with trichomes and stomates. |
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caryopsis pl. caryopsides |
= grain (not recommended); < achene |
nominative |
fruit |
The achene of a grass [Poaceae (Gramineae)]. Although in traditional use caryopsis (or grain) has been treated as a type separate from achene, they do not differ in basic morphology. |
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grain (not recommended) |
= caryopsis; < achene |
nominative |
fruit |
The achene of a grass [Poaceae (Gramineae)] Although in traditional use grain (or caryopsis) has been treated as a type separate from achene, they do not differ in basic morphology. |
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claw |
= unguis |
STRUCTURE |
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The abruptly much narrower proximal portion, when present, of a laminar structure, esp. a petal; of variable shape itself, but usually attenuate toward the base. |
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unguis pl. ungues |
= claw |
STRUCTURE |
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The abruptly much narrower proximal portion, when present, of a laminar structure, esp. a petal; of variable shape itself, but usually attenuate toward the base. |
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sapwood |
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STRUCTURE |
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That portion of the wood (xylem) of a stem or root whose cells are still living and functional; concentric about the heartwood once the latter has begun to form. |
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raphe |
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STRUCTURE |
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That portion of the funicle adnate to the integument of an anatropous ovule; represented by a longitudinal ridge or other discontinuity in the surface and/or color of the testa on one side of the mature seed. |
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hypocotyl |
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STRUCTURE |
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That portion of an embryo axis between the level of cotyledon insertion above and the root meristem (or radicle, if present) below. |
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aristate 2 |
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apex |
pappus scale |
Terminating in one or more awn- or bristle-like appendages. |
