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macrophyll (not recommended) |
= leaf, megaphyll; > frond, needle |
STRUCTURE |
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A principal, vegetative shoot organ borne laterally from a stem node; its vascular tissues, if any, continuous with those of the stem; undergoing no significant secondary growth; usually more or less bilaterally symmetrical; comprising a distal, usually laminar blade and/or a proximal stalk (petiole) or sheath; usually a primary site of photosynthesis. |
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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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curly |
= crispate, crisped |
margin |
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Having closely and irregularly spaced, irregularly shaped, often compound convexities that curve irregularly through three dimensions. |
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papyraceous |
= chartaceous, papery |
texture |
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Very thin, flexible, and readily torn; like paper. See also membranaceous (membranous), pergamentaceous (parchment-like). |
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polished |
= glossy, laevigate, lustrous, shining, shiny |
reflectance |
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Uniformly reflecting a high proportion of incident light at all angles. |
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fatiscent |
= crumbling; > farinaceous, mealy |
texture |
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Easily disintegrating in relatively small pieces, either spontaneously or under pressure. |
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scale-like |
= squamiform |
solid shape |
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Isodiametric to elongate in broad outline, relatively very thin, and planate to moderately concave-convex. |
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scallop |
= crena |
FEATURE |
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A rounded, marginal convexity or concavity in a series of such that alternate regularly and are oriented more or less perpendicular to the generalized perimeter of a laminar structure. See also sawtooth, sawtoothlet, scalloplet (crenule), tooth (dens), toothlet. |
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hirtellous |
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pubescence |
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Finely hirsute. |
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keeled |
= carinate |
solid shape |
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Having an elongate median longitudinal ridge that is basically triangular in transverse section, resembling the keel of a boat; esp. a leaf blade or sheath, glume, lemma, palea, sepal or petal. |
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stomate-bearing |
= stomatiferous |
architecture |
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Having stomates present in the epidermis. |
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tepal |
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STRUCTURE |
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Any member of an undifferentiated perianth; may be green and foliaceous or colored and petaloid, distinct or else connate with one or more others, and/or free or else adnate with one or more other floral structures. |
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umbrella-shaped |
= umbraculiform |
solid shape |
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Having a slender, elongate proximal axis and a very broad, meniscoid distal portion, the latter oriented with its convex face distal; like an umbrella. |
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scabrellous |
= scabrellate, scabridulous |
relief |
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Minutely scabrous (rough, scabrate, scabrid, scabridous). See also spiculate, which is not clearly distinct in its application. |
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awl-shaped 1 |
= subulate |
plane shape |
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Narrowly triangular or truncate-triangular and broadest at the base; like the outline of the lateral face of an awl. |
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muriculate |
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relief |
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Finely muricate. |
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crisped |
= crispate, curly |
margin |
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Having closely and irregularly spaced, irregularly shaped, often compound convexities that curve irregularly through three dimensions. |
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pale 2 |
= palea, palet |
STRUCTURE |
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The upper or distal of the (usually) two distinctive bracts immediately subtending the flower in a grass (Poaceae) spikelet. |
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distant |
= remote |
arrangement |
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Disposed relatively far from one another along the axis. |
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frond |
< leaf, macrophyll (not recommended), megaphyll |
STRUCTURE |
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A leaf in Polypodiophyta or Palmae (Arecaceae), usually relatively large and often highly dissected. Use of this term in preference to "leaf" in descriptions of ferns and palms is a matter of tradition only, not of morphological or evolutionary distinction. |
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S-shaped 2 |
= sigmoid |
solid shape |
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Elongate with more or less constant width or diameter and curved more or less regularly first in one direction and then in the opposite direction, like the letter S. |
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helical 1 |
= acyclic, spiral |
arrangement |
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Disposed helically about and along the axis, each on a different radius than the one(s) vertically adjacent. |
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sickle-shaped 2 |
= falcate |
solid shape |
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Elongate, strongly compressed, and arcuate in the plane of compression, the two faces more or less plane and parallel, the degree of curvature decreasing distally or not; like a sickle blade. |
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interpetiolar |
< nodal |
position |
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Upon the stem between the bases of opposite leaves. |
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stellate 2 |
= star-shaped |
plane shape |
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Having four or more intersecting radiate lobes or portions, each distally slender; like the stylized outline of a star. |
