Geraniales flowers revisited: evolutionary trends in floral nectaries

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Machine translation, except where credited.

Investigating floral morphology in the order Geraniales, Jeiter et al. present data to demonstrate that even the most disparate floral morphologies are derived from a common origin, sharing a basic pentamerous and pentacyclic organisation with an obdiplostemonous androecium and receptacular nectaries associated with the antesepalous stamens. Floral morphology of the Geraniales shows a high degree […]

Annals of Botany

Investigating floral morphology in the order Geraniales, Jeiter et al. present data to demonstrate that even the most disparate floral morphologies are derived from a common origin, sharing a basic pentamerous and pentacyclic organisation with an obdiplostemonous androecium and receptacular nectaries associated with the antesepalous stamens.

Geraniales

Geraniales

Floral morphology of the Geraniales shows a high degree of similarity, despite divergence in detail. The variations are predominantly lineage specific, with individual apomorphic characteristics such as zygomorphy or a reduced number of nectaries having arisen several times independently.

Florida ghost orchid (Dendrophylax lindenii) plant and flower.
Plastids are responsible for photosynthesis, storage of products like starch and for the synthesis of many classes of molecules such as fatty acids and terpenes which are needed as cellular building blocks and/or for the function of the plant.

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