Uma nova espécie de Croton sect. Geiseleria (Euphorbiaceae) da Amazônia Oriental brasileira

Secco, Ricardo de S.

doi:10.1590/s0100-84042009000200005

Cited by 6 publications

(4 citation statements)

References 4 publications

(3 reference statements)

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“…Finally, Croton, the second largest genus of Euphorbiaceae, is also the most diverse genus of that family in the Brazilian flora (BFG 2015). Research on Brazilian Euphorbiaceae has been very active recently thanks to the Flora of Brazil initiative and other regional floristic projects (e.g., Caruzo and Cordeiro 2007;Secco et al 2012a, b;Santos and Caruzo 2015;Silva et al 2014a;Crepaldi et al 2016;Medeiros et al 2016;Viana et al 2016), and recognition of new Euphorbiaceae species continues, with around 70 new species occurring in Brazil having been described in the last decade (e.g., Caruzo et al 2008Caruzo et al , 2010Caruzo et al , 2016Cordeiro et al 2008;Lima and Pirani 2008;Secco 2009;Secco and Berry 2010;Carneiro-Torres et al 2011;Secco et al 2012a, b;Silva et al 2014b).…”

Section: Introductionmentioning

confidence: 99%

Diversity of arborescent lineages of Crotoneae (Euphorbiaceae) in the Brazilian Atlantic Rain Forest

2017

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Section: Introductionmentioning

confidence: 99%

Diversity of arborescent lineages of Crotoneae (Euphorbiaceae) in the Brazilian Atlantic Rain Forest

2017

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“…Its main centers of diversity in the Neotropics are Brazil, the West Indies, and Mexico (Burger & Huft, 1995). Even with a large number of species already known for the genus, many species have been described for the Neotropical region in the last decade (Secco et al 2001;Secco 2004;Gordillo & Luna 2005;Secco et al 2005;Smith 2006;Riina et al 2007;Caruzo et al 2008;Cordeiro et al 2008;Lima & Pirani 2008;van Ee & Berry 2009;Secco 2009;Caruzo et al in press;Carneiro-Torres et al in press). Brazil has approximately 350 species of Croton, including herbs, shrubs, trees and rarely lianas, occupying all kind of habitats, with the greatest number of species concentrated in the eastern part of the country.…”

Section: Introductionmentioning

confidence: 99%

A new species of <i>Croton</i> section <i>Cleodora</i> (Euphorbiaceae s.s.) from Minas Gerais, Brazil

Caruzo¹,

Cordeiro²,

Berry³

et al. 2013

Phytotaxa

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Croton stellatoferrugineus, a new species from Brazil, is here described and illustrated. This new species is endemic to dry forests at the base of "Pico do Itambé", the highest point of the Espinhaço range, in Minas Gerais State, occurring at 700-900 m elevation. Croton stellatoferrugineus presents morphological features consistent with its inclusion in Croton section Cleodora, due to its shrubby habit, petiolar basilaminar glands, 15 stamens, pistillate flowers with quincuncial aestivation, and multifid styles connate at the base. Resumo Croton stellatoferrugineus, uma nova espécie do Brasil, é aqui descrita e ilustrada. Esta nova espécie é endêmica das florestas secas na base do "Pico do Itambé", o ponto mais alto da cadeia do Espinhaço, no Estado de Minas Gerais, ocorrendo de 700-900 m de altitude. Croton stellatoferrugineus possui características morfológicas que permitem incluílo em Croton seção Cleodora, tais sejam seu habito arbustivo, glândulas do pecíolo basilaminares, 15 estames, flores pistiladas de prefloração quincuncial e estiletes multífidos conados na base.

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“…Taxonomic and floristic studies covering species of C. sect. Geiseleria published within the last decade include Secco (2009), Carneiro-Torres et al (2011), Secco et al (2012), Silva et al (2014), , and Sodré et al ( , 2019aSodré et al ( , 2019b, but considerable work still needs to be done to complete species inventories, understand species distribution ranges and relationships, and better resolve the evolutionary history of the group.…”

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The Neotropical Croton sect. Geiseleria (Euphorbiaceae): Classification Update, Phylogenetic Framework, and Seven New Species from South America

Riina

Caruzo

et al. 2021

annals

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A revised assessment of Croton L. sect. Geiseleria (A. Gray) Baill. is provided. The section as now circumscribed includes 84 species ranging across warm areas of the Americas. A nuclear ITS phylogeny of 150 accessions from 83 species and a chloroplast trnL-F phylogeny of 89 accessions from 65 species were generated to confirm correct phylogenetic placement of the species and to determine if any species previously included in the section should now be excluded. Seven new species are described, and we present a taxonomic synopsis that lists all currently accepted species along with their synonyms, distributions, and pertinent comments. We also recognize four subsections within Croton sect. Geiseleria and list their corresponding species. Based on both morphological and molecular criteria, we now recognize C. lagunillae Croizat as a distinct species, rather than as a variety of C. guildingii Griseb. (now treated as C. suavis Kunth), and we treat C. ramillatus Croizat var. magniglandulifer V. W. Steinm. as a species, C. magniglandulifer (V. W. Steinm.) B. W. van Ee. We also exclude C. tetradenius Baill. from Croton sect. Geiseleria (A. Gray) Baill. along with related species such as C. pulegiodorus Baill. and C. leptobotryus Müll. Arg., which are either members of Croton sect. Adenophylli Griseb. or else may merit new sectional status. We also exclude C. waltherioides Urb., although it is not clear to which section of Croton it belongs.

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Uma nova espécie de Croton sect. Geiseleria (Euphorbiaceae) da Amazônia Oriental brasileira

Cited by 6 publications

References 4 publications

Diversity of arborescent lineages of Crotoneae (Euphorbiaceae) in the Brazilian Atlantic Rain Forest

Diversity of arborescent lineages of Crotoneae (Euphorbiaceae) in the Brazilian Atlantic Rain Forest

A new species of <i>Croton</i> section <i>Cleodora</i> (Euphorbiaceae s.s.) from Minas Gerais, Brazil

The Neotropical Croton sect. Geiseleria (Euphorbiaceae): Classification Update, Phylogenetic Framework, and Seven New Species from South America

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