A Geographical Analysis of the Family Ranunculaceae

Ziman, Svetlana N.; Keener, Carl S.

doi:10.2307/2399690

Cited by 39 publications

(21 citation statements)

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“…We postulate that Ranunculaceae was relatively unaffected by the K-Pg mass extinction. Given that Ranunculaceae is a herbaceous angiosperm family mainly restricted to the northern extratropical zone3031, we suggest that the K-Pg mass extinction had little effect on ADHFs, at least in the Northern Hemisphere, contradicting the viewpoint that terrestrial plant communities underwent a global deforestation at the K-Pg boundary2326. In fact, the K-Pg mass extinction resulted from a rapid short-term global cooling54 could not kill all plant species, and instead selected against evergreen species5556.…”

Section: Resultsmentioning

confidence: 80%

The rise of angiosperm-dominated herbaceous floras: Insights from Ranunculaceae

Wang

Xiang

et al. 2016

Sci Rep

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The rise of angiosperms has been regarded as a trigger for the Cretaceous revolution of terrestrial ecosystems. However, the timeframe of the rise angiosperm-dominated herbaceous floras (ADHFs) is lacking. Here, we used the buttercup family (Ranunculaceae) as a proxy to provide insights into the rise of ADHFs. An integration of phylogenetic, molecular dating, ancestral state inferring, and diversification analytical methods was used to infer the early evolutionary history of Ranunculaceae. We found that Ranunculaceae became differentiated in forests between about 108–90 Ma. Diversification rates markedly elevated during the Campanian, mainly resulted from the rapid divergence of the non-forest lineages, but did not change across the Cretaceous-Paleogene boundary. Our data for Ranunculaceae indicate that forest-dwelling ADHFs may have appeared almost simultaneously with angiosperm-dominated forests during the mid-Cretaceous, whereas non-forest ADHFs arose later, by the end of the Cretaceous terrestrial revolution. Furthermore, ADHFs were relatively unaffected by the Cretaceous-Paleogene mass extinction.

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Section: Resultsmentioning

confidence: 80%

The rise of angiosperm-dominated herbaceous floras: Insights from Ranunculaceae

Wang

Xiang

et al. 2016

Sci Rep

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“…Members of Ranunculaceae are cosmopolitan in distribution present throughout the world but mainly present in cold and temperate regions of North and South hemisphere. Except in Montane region very few representative members are also found in tropical and subtropical regions (Wiegleb, Bobrov, & Zalewska‐Gałosz, ; Ziman & Keener, ). Floral parts are arranged in spiral manner, follicles, imperfect carpel closure, and apocarpy are some of the primitive characters of this family.…”

Section: Introductionmentioning

confidence: 99%

Identification of green energy ranunculaceous flora of district Chitral, Northern Pakistan using pollen features through scanning electron microscopy

Ahmad

Zafar

Sultana

et al. 2018

Microscopy Res & Technique

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Pollen micro‐morphological features have proven to be helpful for the plant taxonomists in the identification and classification of plants. The utilization of this plantmayhelpfulin the areas of lignocellulosic conversion to biofuels and diversify application toward biomass. The current study was planned with the aim to evaluate the pollen features of complex Ranunculaceous flora of District Chitral, Northern Pakistan using both scanning electron microscopy (SEM) and Light Microscope (LM) for their taxonomic importance. Pollens of 18 Ranunculaceous species belonging to 6 genera were collected from different localities of the research area. SEM and LM were used to examine both qualitative and quantitative micro‐morphological features. Sculptring of the sexine include; Scabrate, psilate, echinate, verrucate, perforate gemmate, and reticulate and so forth. Shape of the pollens was sub‐spheroidal, spheroidal, prolate, subprolate and oblate and so forth. Type of pollen was ranged from mono to tricolpate and tricolporate. Quantitative characters include length/width of the pollen, colpus, exine thickness, and P/E ratio. Based on these micro‐morphological features a taxonomic key was prepared for the fast and correct identification. Research highlight Study of the pollen micro‐morphological features of Ranunculaceous species by SEM and LM. Analysing both qualitative and quantitative characters of the pollens. Preparation of taxonomic key based on micro‐morphological features for the correct and fast identification.

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“…Members of the family are distributed throughout the world, but are centered in the temperate and cold regions of both hemispheres; representatives are uncommon in tropical and subtropical zones except in montane regions (Ziman and Keener 1989).…”

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confidence: 99%

Phylogeny of the Ranunculaceae Based on Epidermal Microcharacters and Macromorphology

Hoot¹

1991

Systematic Botany

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JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact support@jstor.org. This content downloaded from 150.135.239.97 on Mon,ABSTRACT. The epidermal microcharacters of 20 genera in the Ranunculaceae and 10 outgroup genera from the families Glaucidiaceae, Circaeasteraceae, Berberidaceae, Menispermaceae, and Lardizabalaceae were studied employing scanning electron and light microscopy. Characters such as type of trichome and stomatal length are valuable tools in assessing phylogeny in the Ranunculaceae. Using cladistic analyses, the basic division of the family into two major groups according to chromosome size (R-and T-types) was confirmed. By outgroup polarization, the T-type chromosome group is considered most primitive. Two major clades are recognized in the T-type taxa: the Aquilegia and Thalictrum group including closely related genera and a group consisting of Coptis and Xanthorhiza. Hydrastis is not consjdered a member of the Ranunculaceae. Further cladistic analyses of the R-type taxa using macrocharacters derived mainly from floral and fruit morphology resulted in the following subdivisions: the Anemone and Ranunculus group including Pulsatilla, Hepatica, and Clematis; the Cimicifuga and Actaea group; and the Helleborus group including Eranthis, Trollius, and Caltha.

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A Geographical Analysis of the Family Ranunculaceae

Cited by 39 publications

References 0 publications

The rise of angiosperm-dominated herbaceous floras: Insights from Ranunculaceae

The rise of angiosperm-dominated herbaceous floras: Insights from Ranunculaceae

Identification of green energy ranunculaceous flora of district Chitral, Northern Pakistan using pollen features through scanning electron microscopy

Phylogeny of the Ranunculaceae Based on Epidermal Microcharacters and Macromorphology

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