Displaying 201 - 240 out of 621 Object(s)
| Term | Definition | |
|---|---|---|
| Distinct | Referring to parts of the same organ not fused with one another; e.g., separate petals are said to be distinct. Compare with free. | |
| Divaricate | Widely diverging or spreading. | |
| Divergent | Referring to an organ, such as a flower or the thecae of an anther, that spreads away from the axis to which it is attached. |  |
| Dolabriform | Pick-shaped; e.g., the trichomes of some species of Boraginaceae. | |
| Dorsal | Referring to the back or outward surface of an organ in relation to the axis. Same as abaxial and opposite of ventral (adaxial). | |
| Dorsifixed | Attached at the back; e.g., as in some anthers. | |
| Dorsiventral | Having an upper and lower surface. | |
| E- | A prefix meaning “without.” | |
| Ecarinate | Lacking a keel. See carinate. | |
| Echinate | Covered with prickles. | |
| Effuse | Widely spreading. | |
| Ellipsoid | A solid (three-dimensional) structure or organ with an elliptical outline in longitudinal section. | |
| Elliptic | Referring to the outline of essentially two-dimensional structures, such as leaves, bracts, petals, and sepals, which are widest at or near the middle. Elliptic shapes are divided based on their length/width ratios. An elliptic shape has a length to width ration from 2:1 to less than 3:1. |  |
| Emarginate | Markedly notched, such as the apex of a leaf or other structure. |  |
| Enation | A projection or outgrowth from the surface of an organ. | |
| Ensiform | Sword-shaped. | |
| Entire | Referring to a margin of a leaf, sepal, or petal that is not interrupted by teeth or lobes. |  |
| Epi- | A prefix meaning “upon.” | |
| Epigeous | Referring to the above-ground parts of a plant. | |
| Equitant | Usually applied to distichous leaves with overlapping leaf blades that are flattened stem axis axis; often appearing fan-shaped; e.g.; in many Iridaceae and some Orchidaceae. |  |
| Erose (diminutive = erosulose) | Referring to margins that are jagged, i.e., uneven but not with well-defined teeth. |  |
| Erostrate | Without a beak. | |
| Ethereal oils | Aromatic compounds especially common in the vegetative tissue of dicotyledons such as Annonaceae, Myristicaceae, Canellaceae, Lauraceae, and Piperaceae. | |
| Ex- | A prefix meaning lacking (e.g., exstipulate), outside of (e.g., exocarp), or away from (e.g., exmedial). |  |
| Exfoliate | Referring to layers that peel off another structure, for example bark that peels off a tree trunk. |  |
| Exserted | Extending beyond, as stamens beyond the corolla. Opposite of included. |  |
| Extra- | A prefix meaning outside of, beyond, apart from, besides, in addition to. | |
| Extrorse | Directed outward (abaxially), as the dehiscence of an anther. Compare with introrse and latrorse. | |
| Falcate | Sickle-shaped. | |
| Farinaceous | Containing starch or starchlike substances. | |
| Farinose | With a mealy appearance. | |
| Fasciation (adj. = fasciated) | A growth form in which parts of stems, rachises, or flowers of a plant fuse together to form flattened, anomolous forms. |  |
| Fascicle (fasciculate) | A tight cluster or bundle of roots, stems, leaves, flowers, or other structures arising from the same point; for example, the inflorescences of Grias cauliflora are fasiculate. |  |
| Fenestrate | Pierced with holes; e.g., the trunk of Minquartia guianensis (Olacaceae) or leaves of Monstera spp. (Araceae). |  |
| Ferruginous | Rust-colored, often referring to the color of the pubescence. |  |
| Fetid (foetid) | Bad smelling. | |
| Few | In botanical descriptions, meaning 10 or fewer in number. | |
| Filiform | Threadlike or very slender. | |
| Fimbriate | Fringed on the margin with trichomes coarser than those of a ciliate margin. |  |
| Flabellate (flabelliform) | Fan-shaped; i.e., broadly wedge-shaped. |  |