Displaying 1626 - 1650 out of 3058 Object(s)

Term Definition
Lateral vein Same as secondary vein.
Látex Exudado blanco, cremoso o amarillo que usualmente emana a través de alguna herida en las plantas. Las especies de Clusiaceae usualmente emanan látex cuando son cortadas Látex
Latex Opaque, white, creamy, or yellow, free-flowing exudate, usually observed from a wound in a plant; species of Clusiaceae usually exude latex when wounded. Latex
Laticifer A latex-producing cell or series of cells.
Latrorse Directed toward the side, as the dehiscence of an anther; same as lateral. Compare with extrorse and introrse. Latrorse
Latticed Cross-barred; e.g., the trunks of Swartzia polyphylla (Fabaceae), which are sulcate with connections between the ridges.
Lax Loose, not congested, often used to describe the density of flowers in an inflorescence.
Leaf An expanded stucture where photosynthesis takes place and usually consisiting of a petiole and a blade. Leaf
Leaf A green, expanded stucture usually consisiting of a petiole and a blade but sometimes without a petiole in which photosynthesis takes place. When a petiole is absent the leaf is called sessile. Leaf
Leaf apex acuminate Gradually tapering to an acute apex with the sides being concave. Leaf apex acuminate
Leaf apex acute Sharp; usually referring to the apex of a flattened structure (such as a leaf) in which the two sides are straight and, when they meet, form an angle that is always less than 90° Leaf apex acute
Leaf apex attenuate Tapering very gradually to a narrow tip. Leaf apex attenuate
Leaf apex emarginate Markedly notched, such as the apex of a leaf or other structure. Leaf apex emarginate
Leaf apex mucronate A sharp point at the apex of a leaf or a similar structure, e.g., a bract. Leaf apex mucronate
Leaf apex obtuse Blunt, usually referring to the apex of a flattened structure (such as a leaf) in which the two sides are straight and, when they meet, form an angle greater than 90°. Leaf apex obtuse
Leaf apex retuse Notched slightly at the apex. Leaf apex retuse
Leaf apex rounded Referring to a leaf blade base that is curved at the apex with an angle greater than 90 degrees at the point where the two sides meet. Leaf apex rounded
Leaf apex truncate Referring to an apex or base that terminates abruptly in a nearly straight horizontal edge. Leaf apex truncate
Leaf asymmetrical Referring to the form of a leaf in relation to the midrib, if the blade on each side of the midrib is unequal the leaf is asymmetrical. Leaf asymmetrical
Leaf base acute Sharp; referring to the base of a leaf blade in which the two sides are straight and, when they meet, form an angle that is always less than 90°. Leaf base acute
Leaf base asymmetric Referring to a leaf base in which the two sides do not attach to the petiole at the same place, one is attached than the other. Leaf base asymmetric
Leaf base cordate Heart-shaped at the base of a leaf blade. A cordate leaf blade always has a cordate base but a cordate leaf base may not always be associated with a cordate leaf blade. Leaf base cordate
Leaf base cuneate Wedge-shaped; referring to the base of a leaf blade of which the angle formed by the meeting of the margins is less than 90°. Leaf base cuneate
Leaf base decurrent Referring to a leaf blade base that extends down the petiole. Leaf base decurrent
Leaf base lobate (lobed) A rounded projection arising from the base of a leaf blade. Leaf base lobate (lobed)