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| Term | Definition | |
|---|---|---|
| Differentiated anthers | Referring to anthers that bear two types of pollen: 1) fertile pollen that is transferred to other flowers to effect fertilization and 2) sterile (= fodder) pollen that serves as a pollinator reward. The two types of pollen may differ in their ability to germinate, in their color (fodder pollen is often yellow), and in their morphology (e.g., the fertile anthers of Couroupita guianensis are in monads and the sterile ones are in tetrads), and their location (e. g., the fertile anthers are near the stigma and the sterile ones are in a group separate from the stigma in many species of Swartzia. |  |