Displaying 1 - 20 out of 69 Object(s)
| Term | Definition | |
|---|---|---|
| Compound leaf | Referring to a leaf which is divided into smaller units; i.e., leaflets. Opposite of simple. |  |
| Cotyledons foliaceous (=cotyledons leaf-like) | Referring to cotyledons that are not carnose but instead are thin and leaf-like. In the Sapotaceae, species with foliaceous cotyledons generall have endosperm. |  |
| Cotyledons leaf-like | Cotyledons that look like leaves. |  |
| Even-pinnate leaf | Pinnately compound leaf with an even number of leaflets; i.e., without a terminal leaflet. Same as parapinnate. |  |
| Imparipinnate leaf | Pinnate with an uneven number of leaflets, i.e., with a terminal leaflet. Same as odd pinnate. | |
| 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 apex acuminate | Gradually tapering to an acute apex with the sides being concave. |  |
| 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 attenuate | Tapering very gradually to a narrow tip. | |
| Leaf apex emarginate | Markedly notched, such as the apex of a leaf or other structure. | |
| Leaf apex mucronate | A sharp point at the apex of a leaf or a similar structure, e.g., a bract. | |
| 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 retuse | Notched slightly at the apex. | |
| 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 truncate | Referring to an apex or base that terminates abruptly in a nearly straight horizontal edge. | |
| 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 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 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 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 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°. | |