American Heritage® Dictionary of the English Language, Fourth Edition
- n. A straplike structure, such as the corolla of a ray flower or a membranous or hairy appendage between the sheaf and blade of a grass leaf.
Century Dictionary and Cyclopedia
- n. In botany, one of several strap-shaped organs or parts. The blade formed by the corolla in some or all the florets of numerous composite plants. See
- n. A strap-shaped structure.
- n. botany A portion of a leaf found at the base of the petiole, when present.
- n. botany In many grasses (Poaceae) and some sedges (Cyperaceae), the membranous appendage or ring of hairs projecting from the inner side of a leaf at the junction between the blade and the sheath.
GNU Webster's 1913
- n. The thin and scarious projection from the upper end of the sheath of a leaf of grass.
- n. A strap-shaped corolla of flowers of Compositæ.
- n. (Anat.) A band of white matter in the wall of fourth ventricle of the brain.
- n. (botany) any appendage to a plant that is shaped like a strap
- From Latin ligula, diminutive of liga (Wiktionary)
- Latin ligula, diminutive of lingua, tongue; see dn̥ghū- in Indo-European roots. (American Heritage® Dictionary of the English Language, Fourth Edition)
“The _ligule_ consists of only a thin ridge of short hairs densely arranged.”
“The _ligule_ is only a smooth semilunar line without hairs.”
“The _ligule_ consists of a fringe of minute hairs.”
“Just above the ligule and at the base of the leaf-blade there is a colourless narrow zone.”
“The _ligule_ is merely a dense fringe of long hairs.”
“The = ligule = is a structure peculiar to grasses and it varies very much.”
“Sometimes, in addition to the ligule, other appendages may be present in grass leaves as in _Oryza sativa_.”
“The _ligule_ is membranous truncate, glabrous, about 1/16 inch in height.”
“Margin of glume 1 of the pedicelled spikelet unequally winged; ligule is a broad truncate membrane.”
“Pedicel 1/2 as long as the sessile spikelets; nodes bearded; ligule large and membranous.”
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