A New Species of Cordia (Cordiaceae, Boraginales) from Brazil

Stapf, María Natividad Sánchez de; Ranga, Neusa Taroda; Silva, Tânia Regina dos Santos

doi:10.3417/2007099

Cited by 5 publications

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“…Some recent treatments have followed a broad circumscription of Boraginaceae (i.e., including traditional Boraginaceae, Hoplestigmataceae, Hydrophyllaceae, and Lenno aceae) as recommended by the APG systems (e.g., Judd & al., 2008;Mabberley, 2008 2012; Acevedo-Rodríguez & Strong, 2012;Nazaire & Hufford, 2012; Walden & Patterson, 2012;Walden & al., 2014). However, most recent studies of Boraginales or its subgroups favor the recognition of several families (Gasparino & Vitorino da Cruz Barros, 2009;Melo & al., 2009; Véliz Pérez & al., 2009;Luebert & al., 2010Luebert & al., , 2011aMelo & Semir 2010;Stapf & al., 2010;Weeks & al., 2010; CamposRíos & Chiang Cabrera, 2012;Miller, 2012Miller, , 2013aStutzman & al., 2012;Luebert, 2013; Stapf & Silva, 2013a, b; Tölke & al., 2013; Cohen, 2014; Gottschling & al., 2014a, b; RefulioRodríguez & Olmstead, 2014;Weigend & al., 2014;Irimia & al., 2015;Liu & al., 2015;. This view has been adopted in several recent floristic and taxonomic treatments, such as Flora critica d'Italia (Cecchi & Selvi, 2015a, b), Flora Mesoamericana (Davidse & al., 2012), Families and Genera of Vascular Plants (Kadereit & Bittrich, 2016), Angiosperm Phylogeny Website (Stevens, 2001-), and has recently been incorporated in the most important German botanical textbook (Kadereit & al., 2014 Historically, the coherence of Boraginaceae was primarily based on the presence of four one-seeded compartments in the fruit, separating into four nutlets in the most typical case (Bentham & Hooker, 1876;Gürke, 1893).…”

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Familial classification of the Boraginales

Luebert

Cecchi

Frohlich

et al. 2016

TAXON

112

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The Boraginales are now universally accepted as monophyletic and firmly placed in Lamiidae. However, a consensus about familial classification has remained elusive, with some advocating recognition of a single, widely variable family, and others proposing recognition of several distinct families. A consensus classification is proposed here, based on recent molecular phylogenetic studies, morphological characters, and taking nomenclatural stability into consideration. We suggest the recognition of eleven, morphologically well-defined and clearly monophyletic families, namely the Boraginaceae s.str., Codonaceae, Coldeniaceae fam. nov., Cordiaceae, Ehretiaceae, Heliotropiaceae, Hoplestigmataceae, Hydrophyllaceae, Lennoaceae, Namaceae, and Wellstediaceae. Descriptions, synonomy, a taxonomic key, and a list of genera for these eleven families are provided, including the new family Coldeniaceae (monogeneric) and Namaceae (segregated from Hydrophyllaceae and comprising Nama, Eriodictyon, Turricula, and Wigandia), the latter necessitating a revised circumscription of a more morphologically coherent Hydrophyllaceae. Keywords angiosperms; Boraginaceae; Boraginales; classification; family; plant taxonomy Boraginales Working Group • Families of Boraginales 503Version of Record TAXON 65 (3) • June 2016: 502-522 Boraginaceae in this traditional sense (Candolle, 1845; Bentham & Hooker, 1876;Gürke, 1893;Engler, 1898;Pilger & Krause, 1915) were subdivided into five subfamilies, namely Boraginoideae, Cordioideae, Ehretioideae, Heliotropioideae and Wellstedioideae. In pre-molecular times most scientists accepted this circumscription of Boraginaceae (e.g., Chadefaud & Emberger, 1960;Melchior, 1964b;Takhtajan, 1980Takhtajan, , 1997 Cronquist, 1981 Cronquist, , 1988Thorne, 1992), although some authors recognized one or the other subfamily at the family level. For example, Svensson (1925) andDi Fulvio (1978) removed Cordioideae, Heliotropioideae and Ehretioideae to Heliotropi aceae based on embryological studies, while Merxmüller (1960), Dahlgren (1980), and Takhtajan (1987) treated Wellstedioideae at the family level as Wellstediaceae. Conversely, Hoplestigmataceae, Hydrophyllaceae, and Lennoaceae were generally accepted as distinct families. However, the close relationships of these taxa to traditional Boraginaceae has been widely acknowledged by several authors (e.g., Jussieu, 1789; Baillon, 1891;Peter, 1893;Svensson, 1925; Chadefaud & Emberger, 1960; Melchior, 1964a, c;Takhtajan, 1980; Cronquist, 1981 Cronquist, , 1988. For example, Baillon (1891) defined the Boraginaceae as comprising nine series, which included both Boraginaceae and Hydrophyllaceae in their traditional circumscriptions. Chadefaud & Emberger (1960) considered Boraginaceae, Hoplestigmataceae, Hydrophyllaceae, and Lennoaceae to form a natural group within the order Tubiflorales. Takhtajan (1980) included these same families in the suborder Boraginineae.On the other hand, three groups historically associated to Boraginaceae have been clearly sho...

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confidence: 99%

Familial classification of the Boraginales

Luebert

Cecchi

Frohlich

et al. 2016

TAXON

112

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“…In Brazil, approximately 45 species occur, most concentrated in evergreen lowland and seasonally dry tropical forest (Stapf et al 2010). Cordia is characterised by its style with four stigmatic lobes, undivided endocarp, plicate cotyledons, and pollen grains 3-colporate or 3-colpate with the tectum striate to striate-reticulate or spinulose.…”

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Typifications in Cordia (Cordiaceae), with an assessment of the status of Cordia blanchetii

Stapf

Silva

2013

Kew Bull

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Heterostyly and the possibility of its breakdown by polyploidization

Naiki

2012

Plant Species Biology

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Heterostyly is a genetically controlled sexual polymorphism promoting outcrossing by animal pollinators. The occurrence of heterostyly in angiosperms was investigated, and 199 genera in 28 families in 15 orders were recognized as taxa that contain heterostylous species. A correlation between the occurrence of heterostyly and ploidy level was found in some limited groups in Primulaceae and Rubiaceae. In such taxa, individuals with a lower ploidy level tended to have heterostyly and individuals with a higher ploidy level tended to have monomorphic flowers. It appears reasonable that the first step of the breakdown of heterostyly was the recombination of the supergene in a diploid heterostylous plant, and then poyploidization incidentally occurred. Polyploidization itself does not necessarily appear to have direct effects on the breakdown of heterostyly.

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A New Species of Cordia (Cordiaceae, Boraginales) from Brazil

Cited by 5 publications

References 2 publications

Familial classification of the Boraginales

Familial classification of the Boraginales

Typifications in Cordia (Cordiaceae), with an assessment of the status of Cordia blanchetii

Heterostyly and the possibility of its breakdown by polyploidization

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