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terminal |
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insertion |
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Apical and with the same developmental axis as the whole, of which it is the distalmost portion or appendage. |
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leaflet |
> pinna, pinnule |
STRUCTURE |
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One of the one or more distinct, leaf-like, first- or higher-order divisions of a compound leaf blade; stalked (petiolulate) or sessile; borne upon a rachis or rachilla. |
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unctuous 1 |
= greasy, oily, oleaginous |
coating |
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Of a grease- or oil-like film. |
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apiculate |
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apex |
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Terminating abruptly in a short, slender, angular tip that is not notably harder or stiffer than the main body of the structure. See also mucronate, mucronulate. |
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lobate |
? cleft, dissected, divided, lobed, parted, partite, segmented |
plane shape |
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Having one or more component sectors or peripheral protrusions that is/are delimited by concavities in the surface or margin and that is/are not proximally distinct from the remainder of the whole. The meanings of this term and its approximate synonyms sometimes have been supposed to differ according to the depth of the delimiting concavities relative to the midline or midpoint of the overall structure, and/or to the shape or proportions of the protusions or sectors; however, there has been little consistency in the applications of the various terms according to such distinctions, which are ones only of degree and are necessarily arbitrary in any case. In general usage, these terms differ only indistinctly and connotatively: cleft, lobed (or lobate), parted (or partite) and segmented tend to connote fewer protrusions or sectors; lobate usually connotes as well a generally rounded shape; dissected tends to connote more numerous sectors that are elongate and angular. See also cut (incised, lacerate, torn), laciniate (slashed). |
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bifurcate |
< forked, furcate |
plane shape |
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Having two terminal, antrorse branches or divisions arising from a common point or level, like the prongs of a fork. |
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naked 1 |
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architecture |
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Lacking a covering that might have been expected. |
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palet 1 |
= pale, palea, receptacular bract |
STRUCTURE |
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A small papery (chartaceous) to membranous bract borne on the compound receptacle (torus) of a capitulum (head) in Asteraceae (Compositae). |
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pitted |
= foveate |
relief |
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Having numerous, small, rounded depressions. See also fine-pitted (foveolate, scrobiculate). |
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deflexed |
= reflexed |
orientation |
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Abruptly bent outward (abaxially), downward, or backward at some point along its length. |
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emargination |
= notch |
FEATURE |
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A relatively small, acute sinus at the distal end of a laminar structure. |
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hypanthium 1 (broad sense) pl. hypanthia |
= floral cup (broad sense), floral tube |
STRUCTURE |
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A complex structure comprising fused portions of the perianth and/or androecium of a flower, sometimes also including receptacular tissue; surrounding and wholly, partly, or not at all adnate to the gynoecium; subdivided morphologically into casing, collar and/or neck; sometimes bearing free distal portions of the constituent structures. |
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tuft |
> coma |
STRUCTURE |
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A distinct, compact, relatively dense, homogeneous aggregation of plants or constituent structures such as stems, branches, leaves, bracts or trichomes. |
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whorled |
= cyclic, seriate, verticillate |
arrangement |
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Disposed along the axis in groups of three or more, the members of each group (cycle, series, verticil, whorl) inserted around the axis at the same level. |
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…whorled |
= …cyclic, …seriate, …verticillate |
arrangement |
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Disposed in the number of whorls (cycles, series, verticils) indicated by the prefix; as in three-whorled, 1-whorled. |
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…angular 2 |
= …gonal |
plane shape |
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Having distinct, flat or curved sides of the number indicated by the prefix; as in hexangular, triangular. See also …angled (…gonous), deltate. |
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basal |
< proximal |
position |
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At or very near the developmental origin (base) of a structure. |
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capillus pl. capilli |
= hair; > glochid, glochidium; < cilium, trichome |
STRUCTURE |
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A hair-like trichome. |
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opaque |
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coloration |
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Not transmitting light. |
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columella 1 pl. columellae, columellas |
= carpophore; < 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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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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puberulent |
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pubescence |
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Finely pubescent in the restricted sense of that term. |
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dull |
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reflectance |
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Reflecting only a low proportion of incident light, with no apparent sheen. |
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rootstock |
= rhizome |
STRUCTURE |
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An underground, usually horizontal stem, often superficially resembling a root but easily distinguished by the presence of nodes, from which it branches exogenously to produce the aboveground portion(s) of the shoot. |
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serrate |
= sawtoothed |
margin |
|
Having regularly spaced, angular convexities oriented at an acute angle to the generalized perimeter. See also crenate (scalloped), crenulate (small-scalloped), dentate (toothed), denticulate (small-toothed), serrulate (small-sawtoothed). |
