Cryptic dioecy is widespread in South American species of Symplocos section Barberina (Symplocaceae)

Filho, João Luiz M. Aranha; Fritsch, Peter W.; Almeda, Frank; Martins, Angela Borges

doi:10.1007/s00606-008-0109-9

Cited by 8 publications

(5 citation statements)

References 33 publications

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“…For pollen foragers, pistillate flowers are usually rewardless, although in some species they may produce inviable pollen (reviewed by Mayer and Charlesworth 1991 ; see also, e.g. Aranha Filho et al 2009 ; Anderson et al 2015 ; and papers cited within).…”

Section: Connections Between Floral Signals and Rewardsmentioning

confidence: 99%

Intraspecific relationships between floral signals and rewards with implications for plant fitness

Essenberg

2021

AoB PLANTS

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Within-species variation in traits such as petal size or color often provides reliable information to pollinators about the rewards offered to them by flowers. In spite of potential disadvantages of allowing pollinators to discriminate against less-rewarding flowers, examples of informative floral signals are diverse in form and widely distributed across plant taxa, apparently having evolved repeatedly in different lineages. Although hypotheses about the adaptive value of providing reward information have been proposed and tested in a few cases, a unified effort to understand the evolutionary mechanisms favoring informative floral signals has yet to emerge. This review describes the diversity of ways in which floral signals can be linked with floral rewards within plant species and discusses the constraints and selective pressures on floral signal-reward relationships. It focuses particularly on how information about floral rewards can influence pollinator behavior and how those behavioral changes may, in turn, affect plant fitness, selecting either for providing or withholding reward information. Most of the hypotheses about the evolution of floral signal-reward relationships are, as yet, untested, and the review identifies promising research directions for addressing these considerable gaps in knowledge. The advantages and disadvantages of sharing floral reward information with pollinators likely play an important role in floral trait evolution, and opportunities abound to further our understanding of this neglected aspect of floral signaling.

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Section: Connections Between Floral Signals and Rewardsmentioning

confidence: 99%

Intraspecific relationships between floral signals and rewards with implications for plant fitness

Essenberg

2021

AoB PLANTS

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“…1 (Figure 21G-I Remarks. -The pollen morphology (LM, SEM) and ultrastructure (TEM) of Symplocos has been studied by Erdtman (1952), van der Meijden (1970), Huang (1972), Barth (1979Barth ( , 1982, Lieux (1982), Mai (1986), Nagamasu (1989aNagamasu ( , 1989b, Premathilake et al (1999), Aranha Filho et al (2009), Li et al (2011), Miyoshi et al (2011, and Liu and Qin (2013). These studies show a considerable variation in pollen morphology, especially in sculpture observed with SEM.…”

mentioning

confidence: 98%

“…Symplocos (sections Lodhra and Hopea: e.g. Nagamasu 1989b; Aranha Filho et al 2009;Li et al 2011;Miyoshi et al 2011). Verrucate pollen occurs in other species of sect.…”

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confidence: 99%

“…Lodhra, Hopea and Symplocos (e.g. van der Meijden 1970; Barth 1979Barth , 1983Lieux 1982;Nagamasu 1989b;Aranha Filho et al 2009;Li et al 2011;Miyoshi et al 2011;Liu & Qin 2013). Only the unique pollen types appear to be lineage-diagnostic, like that of S. tinctoria (see Lieux 1982;Nagamasu 1989a) or the latest diverged species of tropical America (see Bart 1982).…”

mentioning

confidence: 99%

“…Hopea (or Barberina) comprises 24 species in the Americas and one in eastern Asia, and Symplocos sect. Symplocos comprises 150 species in tropical America(Fritsch et al 2008;Aranha Filho et al 2009). Extant taxa producing pollen similar to the fossil Symplocos sp.…”

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confidence: 99%

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Combined LM and SEM study of the middle Miocene (Sarmatian) palynoflora from the Lavanttal Basin, Austria: Part V. Magnoliophyta 3 – Myrtales to Ericales

Grímsson

Bouchal

Xafis

et al. 2020

Grana

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The continued investigation of the middle Miocene palynoflora from the Lavanttal Basin reveals numerous additional angiosperm taxa. The Myrtales to Ericales pollen record documented here comprises 46 different taxa belonging to (Rehderodendron) and Symplocaceae (Symplocos). Köppen signatures of potential modern analogues of the additional fossil woody elements confirm the hypothesis of a subtropical (Cfa, Cwa) climate at lower elevations and subsequent transition into a temperate climate with altitudinal succession (Cfa → Cfb/Dfa → Dfb; Cwa → Cwb → Dwbclimate). The fossil plants represent different vegetation units, from wetland lowlands to well-drained montane forests. Many of the fossil taxa have potential modern analogues that can be classified as nemoral and/or meridio-nemoral and/or semihumid-meridional vegetation elements. New is the recognition of oreotropical elements, which are direct indicators for a substantial altitudinal gradient.

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A comprehensive analysis on Symplocos racemosa Roxb.: Traditional uses, botany, phytochemistry and pharmacological activities

Acharya

Shah³

et al. 2016

Journal of Ethnopharmacology

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Cryptic dioecy is widespread in South American species of Symplocos section Barberina (Symplocaceae)

Cited by 8 publications

References 33 publications

Intraspecific relationships between floral signals and rewards with implications for plant fitness

Intraspecific relationships between floral signals and rewards with implications for plant fitness

Combined LM and SEM study of the middle Miocene (Sarmatian) palynoflora from the Lavanttal Basin, Austria: Part V. Magnoliophyta 3 – Myrtales to Ericales

A comprehensive analysis on Symplocos racemosa Roxb.: Traditional uses, botany, phytochemistry and pharmacological activities

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