ligule 4 |
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STRUCTURE |
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The distal, relatively flat portion of the zygomorphic corolla of a ligulate floret, terminating in 5 teeth or lobes; in Asteraceae (Compositae). |
lacrimiform |
= teardrop-shaped |
solid shape |
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Transversely round and broadest just below the middle, broadly rounded to the base and acutely attenuate to the apex. |
abrupt |
= truncate |
apex |
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Having a distal boundary that is generally straight or plane and approximately perpendicular to the central axis. |
oblique 1 |
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base |
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Asymmetric about its longitudinal axis. |
central |
= medial, median |
position |
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At, upon, or closely ranged about the structural or symmetrical midpoint or axis. |
deca… |
= ten-… |
prefix |
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Indicating presence of or constitution by ten entities of the type denoted by the term's stem; as in decandrous, decagynous, decalocular. |
auricle |
= ear |
STRUCTURE |
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A small, rounded, lateral lobe at the base of a laminar structure, lying in more or less the same plane as the remainder of the lamina. |
radical |
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position |
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Upon, arising from, or otherwise directly associated with the root. |
motile |
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habit |
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Able to translocate by intrinsic means, as by flagellar propulsion. |
papillar(y) |
= papilliform |
solid shape |
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Small, conoidal, and protruding from a larger structure; resembling a pimple; esp. trichomes. |
headed 2 |
= capitate |
solid shape |
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Abruptly enlarged distally to a relatively short, terminal portion that is basically round in transverse section. |
glochidiate |
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pubescence |
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Bearing glochids (glochidia). |
nodal |
> interpetiolar |
insertion |
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Upon or associated with the nodes. |
carinate |
= keeled |
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. |
rostrate |
= beaked |
apex |
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Terminating in a relatively long, tapering, more or less rigid point. See also rostellate (small-beaked). |
dot-like |
= punctiform |
plane shape |
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Very small and generally circular in outline. |
cuboid |
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solid shape |
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Generally but not strictly cubic; more or less equilaterally six-sided, each side basically square. |
integument |
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STRUCTURE |
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A distinct layer of tissue that encloses and serves to protect the other tissues of an organ, especially a seed. |
spur 1 |
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STRUCTURE |
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A hollow protrusion from a calyx or corolla, often nectariferous. |
tufted 2 |
> floccose |
pubescence |
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Of or bearing tufts of soft, fine, capillate trichomes that rub off easily. |
punctate 1 |
= dotted |
coloration |
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Having small, round, clear or colored spots that contrast with the ground color. See also puncticulate (small-dotted). |
ovule |
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STRUCTURE |
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A complex reproductive structure borne by a seed-plant sporophyte, consisting of outer, sporophytic tissues that enclose a haploid, gametogenic tissue usually regarded as a highly reduced megagametophyte. Following fertilization, the entire structure matures to become a seed that contains an embryo, the first stage of the next sporophytic generation. Ovules (and seeds) are borne naked on megasporophylls (in Pinophyta) or within an ovary (in Magnoliophyta). |
trabeculate |
< septate |
architecture |
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Having one or more trabeculae. |
marginal |
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insertion |
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Upon or otherwise directly associated with the margins. |
endosperm |
= albumen |
STRUCTURE / SUBSTANCE |
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A genetically triploid (3n chromosomes) nutritive tissue in a seed; containing stored carbohydrate and/or oil utilized by the embryo prior to and especially upon germination; derived from fusion of the two polar nuclei (n + n chromosomes) of the embryo sac with a sperm nucleus from the pollen tube (n chromosomes). See also perisperm. |