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perigynium 1 pl. perigynia |
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STRUCTURE |
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Two whorls of bracts, scales or setae immediately subtending the ovary, sometimes cupulate (cup-shaped) or ampulliform (flask-shaped, lageniform) and investing the fruit (achene); in Cyperaceae. |
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receptacle 2 |
= torus |
STRUCTURE |
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The short, expanded, compound axial structure surmounting a peduncle and basal to two or more flowers, or to the florets of a capitulum (head) in Asteraceae (Compositae), where it may bear paleae (receptacular bracts), scales, bristles, trichomes, or subulate enations, and may be smooth or variously pitted (alveolate, foveolate). |
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muriculate |
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relief |
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Finely muricate. |
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aril 2 (strict sense) |
= arillus |
STRUCTURE |
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An appendicular structure that wholly or partly envelops a seed and is an outgrowth from the funicle or raphe, and thus is ontogenetically derived from the placenta; usually fleshy or pulpy, sometimes spongy or tufted-capillate, often brightly colored. |
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waxen 1 |
= ceraceous, cereous, waxen; > caesious, glaucescent, glaucous, pruinose |
coating |
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Covered with wax or a wax-like substance. |
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basifixed |
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fixation |
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Attached at its base. |
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spore case |
= sporangium |
STRUCTURE |
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A spore-producing organ; basically capsular, often supported by a slender stalk (sporangiophore), often lidded (operculate). In Bryophyta and Polypodiophyta, a distinct portion of the sporangial wall effects regular dehiscence at maturity. Spore cases or their equivalents are also present, but of little or no descriptive significance, in seed plants. |
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columella 2 pl. columellae, columellas |
= carpophore; < stalk |
STRUCTURE |
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The stalk supporting a mericarp after dehiscence of a schizocarpic fruit, the central axis of the fruit having split longitudinally to yield two or four such stalks; composed of receptacular and (primarily) gynoecial tissues; esp. in Apiaceae (Umbelliferae). |
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foveolate |
= fine-pitted, scrobiculate |
relief |
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Finely foveate (pitted). |
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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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tuberculose 2 |
= tubercular |
solid shape |
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Comprising small knot-like segments. |
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oleaginous 2 |
= greasy, oily, unctuous |
texture |
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Liquid or deformably solid, cohesive, and slippery to the touch. |
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strigulose |
= strigillose |
pubescence |
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Finely strigose. |
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crenulate |
= small-scalloped |
margin |
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Finely crenate (scalloped). See also dentate (toothed), denticulate (small-toothed), serrate (sawtoothed), serrulate (small-sawtoothed). |
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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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gynaecium |
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STRUCTURE |
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See gynoecium. |
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mitriform |
= mitre-shaped |
solid shape |
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Broadest and transversely round to oval proximally, tapering bilaterally above the middle to a central peak; like a peaked hat or cap. |
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apical |
< distal |
insertion |
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At or very near the developmental end or tip (apex) of a structure. |
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vernation |
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CHARACTER |
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Disposition of leaves in the bud. |
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axe-shaped |
= dolabriform |
solid shape |
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Elongate, basally terete, becoming strongly compressed toward an abruptly and unilaterally broader apex; like an axe (handle plus head). |
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spheroid(al) |
= globose, globular, orbicular, rotund, spheric(al) |
solid shape |
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Uniformly convex, circular in any median section and in outline when viewed from any angle; like a sphere or globe. |
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…cleft |
? …fid, …lobate, …lobed, …parted, …partite, …segmented |
solid shape |
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Having the number of lobes, divisions or segments indicated by the prefix; as in three-cleft. |
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plane shape |
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CHARACTER |
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Overall two-dimensional form or aspect(s) thereof. Overlaps conceptually with architecture, arrangement, habit, insertion, orientation, and position. |
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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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floral |
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insertion |
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Upon, within, or associated with the flowers. |
