Displaying 1 - 20 out of 420 Object(s)
| Term | Definition | |
|---|---|---|
| Caducous | Falling off very early. | |
| Abaxial | The lower part of a structure such as a leaf, i.e., that part of a structure that faces away the main axis to which it is attached. For example, if a leaf is pushed upward and against a stem the surface facing away from the stem is the abaxial surface. |  |
| Adaxial | The upper part of a structure such as a leaf, i.e., that part of the structure that faces toward the main axis to which it is attached. For example, if a leaf is pushed upward and against a stem the surface facing toward the stem is the abaxial surface. | |
| Admedial | Toward the axis of any structure, especially used to describe leaf venation. |  |
| Alate | Refers to a band of tissue running the length of a structure; = winged. |  |
| Androecial appendages | In the Lecythidaceae, any prolongation from the surface of the androecium; if there are fertile anthers on the appendage they are called a stamens, if there are normal appearing anthers that produce only fodder pollen they are called staminodes, if there are only rudimentary anthers or no anthers at all the appendages they are called vestigial stamens, and if they produce nectar they are called nectar-producing vestigial stamens. |  |
| Androecial hood | In zygomorphic-flowered Lecythidaceae with ligules, the distal part of the ligule that has become modified either by the outgrowth of appendices (= staminodes, vestigial stamens, or nectar-producing vestigial stamens), by an abrupt change in direction of the ligule, or by both. Androecial hoods are usuallly separated from the staminal ring by an appendage-free part of the ligule (the only known exception is |
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| Androecial hood appendages swept inward | A androecial hood type in which appendages arise from an expanded apical or subapical part of the ligule from where they curve into the flower but do not form a coil (e.g., as in species of |
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| Androecial hood double-coiled | The androecial hood is coiled twice inward. |  |
| Androecial hood flat | The androecial hood is not curved or coiled inward at all | |
| Androecial hood flat, thick | The androecial hood, as seen in medial longitudinal section, is thickened dorsiventrally. |  |
| Androecial hood flat, thin | The androecial hood is not curved or coiled inward and it is not thickened as viewed in a medial longitudinal section. |  |
| Androecial hood horizontally oriented (= hood horizontally oriented) | An androecial hood with the first coil oriented at more-or-less 90 degrees to the main axis of the flower. |  |
| Androecial hood obliquely oriented (= hood obliquely orientated) | An androecial hood that is oriented at an angle less than 90 degrees to the main axis of the flower. |  |
| Androecial hood once-coiled | The androecial hood turns inward once |  |
| Androecial hood split | A separation of the androecial hood into a posterior hood extension and an anterior hood extension. |  |
| Androecial hood triple-coiled | The androecial hood makes three turns inward |  |
| Androecial hood: Bertholletia-type | The Bertholletia-type of androecial hood has appendages that are swept back into the interior of the hood which are called vestigial stamens; these appendages do not have anthers. | |
| Androecial hood: Corythophora alta-type | A thickened hood, bearing staminodes. |  |
| Androecial hood: Couratari-type | The androecial hood has an extra external flap found only in species of |
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