What Is inside a Papilionoid Flower? II. Insights into the Vascular Anatomy of Faboideae

Zalko, Julie; Deroin, Thierry; Sarthou, Corinne; Jabbour, Florian

doi:10.1086/721775

Cited by 5 publications

(2 citation statements)

References 40 publications

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“…In some of the Milletieae, the FN comprises ten free finger-like glands (Sirichamorn et al, 2014). These FN lobes are supplied with conductive bundles connecting them with the vasculature of stamens (Moore, 1936;Al-Nowaihi et al, 2001;Zalko et al, 2022). Interestingly, prominent lobes are found in annular FNs of some Acacia having a polymerous androecium (Gómez-Acevedo et al, 2007).…”

Section: Figurementioning

confidence: 99%

“…Considering the exceptional plasticity of angiosperm FNs in terms of their structure and position within a flower (Smets, 1986), the exact origin of the leguminous FNs has been a matter of debates and (re)interpretations for almost two centuries. A detailed review of existing literature on the issue was made by Moore (1936) and in a recent paper by Zalko et al (2022). Generally, there are two opposing views on the origin and identity of the leguminous FN.…”

Section: Origin Evolution and Possible Taxonomic Implications Of Flor...mentioning

confidence: 99%

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Floral nectaries in Leguminosae: structure, diversity, and possible evolution

Sinjushin

2024

Preprint

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Floral nectar is a key reward in Leguminosae despite the exceptional diversity of flowers in this family. The paper aims to summarize the available data on structure, ontogeny, regulation, and possible evolution of the leguminous floral nectaries. To date, detailed characterization of ultrastructure and mode of secretion is available only for a few representative of the family whereas the majority remains understudied from this perspective. In most cases, regardless of flower symmetry, nectaries are localized between stamens and a carpel. The nectar is usually exuded from modified stomata although the exact mode of secretion by specialized parenchyma may differ between taxa. The leguminous floral nectaries often have certain features of monosymmetry with preferentially abaxial development. Nectaries were independently lost in several lineages, and equally recurrent is the emergence of substitutive, i.e. evolutionary innovative, nectar-producing structures. Floral nectaries possess a certain degree of evolutionary inertia, i.e. they remain stable even in lineages in which flower morphology underwent significant changes compared with an ancestral plan, such as shifts in merism, symmetry, organ number and alike. Due to their evolutionary stability, floral nectaries are rarely used in taxonomy of Leguminosae.

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