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hair |
= capillus; > glochid, glochidium; < cilium, trichome |
STRUCTURE |
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A hair-like trichome. |
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sporophyte |
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PLANT |
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The main, ultimate, spore-bearing stage in the diploid (2n chromosomes) phase of a taxon's life cycle. Two morphologically and genetically distinct and alternate phases together constitute the complete life cycle in sexually reproducing taxa, the other phase (gametophytic) being haploid (n chromosomes). Any taxon whose life cycle is confined to one or the other phase is limited to asexual means of reproduction, since sexual reproduction with consequent genetic recombination is impossible without alternation between haploid and diploid states via meiosis and fertilization. The term sporophytic applies to any part of the diploid phase, including all unicellular to multicellular entities belonging to it, whereas sporophyte is reserved for the principal and directly spore-producing stage of that phase. |
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lobe |
? division, segment |
STRUCTURE |
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Any generally convex, major peripheral protrusion or component sector that is delimited by concavities in the surface or margin and that is not proximally distinct from the remainder of the whole. |
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tubiform |
= trumpet-shaped |
solid shape |
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Obteretely tubular with a relatively short distal flare (the limb if a perianth, calyx, or corolla). |
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foliar |
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insertion |
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Upon or otherwise directly associated with the leaves. |
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collar 2 |
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FEATURE |
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The junction between the sheath and blade of a leaf; esp. in Poaceae (Gramineae). |
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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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strombuliform |
= spire-shaped |
solid shape |
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Attenuate-spiral in three dimensions, the coils contiguous or not. |
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radial |
= radiant, radiate, stellate |
arrangement |
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Disposed about and mutually divergent from a common geometric center in two or three dimensions, thus collectively actinomorphic. |
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mono… |
= one-…, single-…, uni… |
prefix |
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Indicating presence of or constitution by one entity of the type denoted by the term's stem; as in monandrous, monocolpate, monocyclic. See also entries for particular terms with this prefix whose meanings, at least in some applications, are more specific than usually indicated by such combination. |
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verticillate |
= cyclic, seriate, whorled |
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 regularly around the axis at the same level. |
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…verticillate |
= …cyclic, …seriate, …whorled |
arrangement |
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Disposed in the number of verticils (cycles, series, whorls) indicated by the prefix; as in five-whorled, 3-whorled. |
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gongylodate |
= gongyloid, knob-shaped, knot-shaped, nodiform |
solid shape |
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Approximately globose, the surface convoluted or not, like a knob or knot; usually applied only to structures or components that are relatively small. |
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spicy |
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odor |
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Pleasantly pungent, reminiscent of spices. |
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course |
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CHARACTER |
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Linear pattern of the centerline through the length of an axis or vein. |
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platter-shaped |
= scutellate, scutelliform |
solid shape |
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Relatively thin with opposite broad oval faces, shallowly concave-convex; like a serving platter. See also buckler-shaped (scutate, scutiform), which is not clearly distinct in its application. |
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rosette |
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STRUCTURE |
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A set of leaves that are strongly congested and disposed in radial symmetry about the main stem at or very near its base, seeming to arise at the same level and often overlapping laterally; esp. the overwintering leaves of perennial herbs. |
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annular |
= ring-shaped |
solid shape |
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More or less evenly tubular in a closed circle; like a ring or doughnut. |
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oblong 2 |
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solid shape |
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Compressed-ellipsoid, the sides approximately parallel from near one end to near the other. See also ellipsoid(al). |
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hippocrepiform |
= horseshoe-shaped |
solid shape |
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Relatively slender and strongly compressed, the whole strongly curved over its length in a plane perpendicular to the direction of compression and forming an incomplete circle, the ends somewhat straighter than the rest and parallel or nearly so; like a horseshoe. |
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stipe 2 (broad sense, not recommended) |
< stalk; > gynophore, hypogynium, peduncle, petiole |
STRUCTURE |
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A stalk of or supporting a frond, inflorescence, or gynoecium. |
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branchlet |
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STRUCTURE |
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A branch of the highest or ultimate order. |
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pulverulent |
= granuliferous, powdery |
coating |
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Covered with a more or less even deposit of fine, dry particles. See also lentiginous (dusty, lentiginose), which is not clearly distinct in its application. |
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megasporangium pl. megasporangia |
= macrosporangium (not recommended) |
STRUCTURE |
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A sporangium that produces megaspores. |
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seed leaf |
= cotyledon |
STRUCTURE |
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Any of the one or more primary foliar structures of an embryonic seed plant, proximal to all succeeding leaf primordia; sometimes serving as a storage organ for food reserves in the seed, as in peas and beans. |
