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lanciform |
= lancehead-shaped, lanceoloid |
solid shape |
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Considerably longer than broad, compressed or not, broadest near the base and somewhat concavely attenuate to the apex, the attenuation in all median longitudinal planes or else largely confined to one, depending upon the extent of compression, if any. See also oblanciform (oblanceoloid). |
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twig |
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STRUCTURE |
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The terminal portion of an ultimate branch of a woody stem, representing the most recent increment of growth and bearing or having borne the current or most recent increment of leaves. See also branchlet. |
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wood |
= xylem |
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. As commonly used, the term wood generally refers only to secondary xylem, which constitutes the bulk of a mature woody stem, but it properly refers also to primary xylem, wherever found. See also sapwood, heartwood. |
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beak 1 |
= rostrum |
STRUCTURE |
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A relatively long, tapering, more or less rigid and pointed enation or termination. |
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mottled |
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coloration |
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Having one or more indistinctly delineated, irregularly shaped, areas of varying size and contrasting hue and/or intensity. |
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carinal |
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aestivation |
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Having the petals of the keel (carina) enclosing the others. |
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oval |
= elliptic(al) |
plane shape |
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Elongate, widest at the middle, and symmetrically convex-attenuate to rounded ends. See also oblong. |
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complex |
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architecture |
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Comprising two or more basic structural entities, at least two of which are dissimilar. |
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pinnatifid |
> pinnatisect; < pinnate |
plane shape |
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Pinnately divided. |
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cymbiform |
= boat-shaped, navicular |
solid shape |
|
Like the generalized form of a boat hull, the walls relatively thin to moderately thick, the interior essentially empty and open along one side. |
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punctate 2 |
= dotted |
relief |
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Having small, round, shallow depressions or low protrusions. See also puncticulate (small-dotted). |
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eccentric |
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position |
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Having a center or axis of symmetry not coincident with that of the context of reference. |
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rough 1 |
= scabrous |
pubescence |
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Of or bearing coarse, stiff, ascending, trichomes and markedly rough to the touch. |
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fibrous |
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texture |
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Having tough, woody or sclerotic strands distributed through a softer matrix. |
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sharp |
= acute |
apex |
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Acutely angular; regularly and more or less straightly attenuate to an angular tip, the sides intersecting at an angle of less than 90°. |
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glabrate |
= near-bald |
pubescence |
|
Nearly glabrous, with only a very sparse covering of trichomes. |
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stalkless |
= exstipitate, sessile, unstalked |
architecture |
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Lacking a stalk, thus inserted ("sitting") directly upon the bearing structure. |
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suprafoliar |
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insertion |
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Upon the stems, each directly above (distal to) and very near a point of leaf insertion. |
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knobby |
= knotty, nodose |
solid shape |
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Having knob-shaped (gongylodate, gongyloid, knot-shaped, nodiform) protrusions. See also nodulose. |
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viviparous |
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reproduction |
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Producing sexually or asexually generated offspring that begin growth and development while borne upon the parent plant. |
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anadromous |
|
venation |
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Having the first lateral vein in each pinna or primary segment of the frond arise from its midvein on the side toward the apex of the frond, the pinnule or secondary segment that it leads to often disproportionately larger than the next distal ones. |
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axis pl. axes |
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STRUCTURE |
|
Any unitary and longitudinally continuous structure that bears laterally the subordinate portion(s), if any, of a plant root or shoot or any subdivision thereof and that represents the main line of structural development and/or symmetry distal to its origin, irrespective of the particular ontogenetic growth pattern involved. See also primary axis. |
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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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ocrea pl. ocreae var. ochrea |
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STRUCTURE |
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A tubular sheath that encircles a stem at a node, subtending a petiole; thought to have arisen evolutionarily by lateral fusion of two stipules; in Polygonaceae. |
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perigynium 2 pl. perigynia |
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STRUCTURE |
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A phyllary (involucral bract) or palea (pale, palet) that fully encloses a cypsela; in Asteraceae (Compositae). |
