Revision of Sarcocornia (Chenopodiaceae) in South Africa, Namibia and Mozambique

Steffen, Simone; Mucina, Ladislav; Kadereit, Gudrun

doi:10.1600/036364410791638379

Cited by 26 publications

(35 citation statements)

References 20 publications

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“…We mostly cite here the most recent references due to disambiguation of some names -e.g. Arthrocnemum africanum in Scott (1977) and Steffen, Mucina and Kadereit (2010). The accepted names are highlighted in bold although, in the light of the paraphyly of Sarcocornia (Shepherd, Macfarlane and Awaycott 2005b;Kadereit, Mucina and Freitag, 2006; A. subterminale (Parish) Standl.…”

Section: Checklist Of Arthrocnemum Namesmentioning

confidence: 99%

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A new species ofArthrocnemum(Salicornioideae: Chenopodiaceae-Amaranthaceae) from West Africa, with a revised characterization of the genus

Sukhorukov

Nilova

2016

Botany Letters

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Section: Checklist Of Arthrocnemum Namesmentioning

confidence: 99%

“…terminale Toelken ≡ Sarcocornia terminalis (Toelken) A.J. Scott (Steffen et al 2010 A. xerophilum Toelken ≡ Sarcocornia xerophila (Toelken) A.J. Scott (Steffen et al 2010).…”

Section: Checklist Of Arthrocnemum Namesunclassified

A new species ofArthrocnemum(Salicornioideae: Chenopodiaceae-Amaranthaceae) from West Africa, with a revised characterization of the genus

Sukhorukov

Nilova

2016

Botany Letters

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“…Sarcocornia is a notable complex genus as has been reported by several authors (Shepherd & al., 2005, Alonso & Crespo, 2008Steffen & al., 2010;Guilló & al., 2012), who also highlighted the importance of SEM characters such as seminal coat and stomata to identify among taxa. These morphological characters are rather stable as compared to other vegetative and reproductive features (e.g.…”

Section: Discussionmentioning

confidence: 99%

“…The apex of the segments was commonly used in the descriptions of some Sarcocornia species (Maire & Quézel, 1962;Castroviejo, 1990;Alonso & Crespo, 2008;Steffen & al., 2009Steffen & al., , 2010. Fuente & al.…”

Section: Discussionmentioning

confidence: 99%

“…As for previous morphological features, no tendency was newly observed between the studied species. Concerning to seed coat has been widely described for taxonomical purposes within the genus Sarcocornia (Shepherd & al., 2005;Alonso & Crespo, 2008;Steffen & al., 2009Steffen & al., , 2010, and specially to distinguish between S. fruticosa and S. perennis (Maire & Quézel, 1962;Meikle, 1977;Valdés & al., 1987b;Bolòs & Vigo, 1990;Castroviejo, 1990;Cabello 2011;Guilló & al., 2012). For S. fruticosa, the mentioned authors reported a seed ornamentation well characterised by the presence of short hairs, papillae or mamelons.…”

Section: Discussionmentioning

confidence: 99%

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Taxonomical identity of Sarcocornia fruticosa and S. hispanica in the Iberian Peninsula

Guilló¹,

Alonso²,

Lendínez³

et al. 2014

Anal. Jard. Bot. Madr.

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The recent description of Sarcocornia hispanica, from SE Iberian Peninsula evidences the notable morphological complexity of this genus. This species is quite close to S. fruticosa, as they both show an erect habit and lack of rooting stems. Besides, S. fruticosa has been traditionally recorded for the same geographical area of S. hispanica. However, the original description of S. hispanica did not include any mention about these two taxa would live together and which ones are the differential morphological characters. Our study aims to clarify their main morphological differences and to address two questions. Firstly, if two close species would be coexisting or secondly, if both species would not live together and then only one erect shrubby species should be recognised for the southeastern peninsular. Therefore, a detailed morphological study of these two species was carried out using vegetative and reproductive characters together with SEM features. Based on the original description, the main morphological features of S. hispanica were compared, plus other features which would support their identification. Our data pointed out the existence of a marked overlapping for most of the studied characters independently of the geographical procedence of the samples. As a result, no significant morphological differences have been found between both taxa, and S. hispanica is proposed as a mere synonym of S. fruticosa. La reciente descripción de Sarcocornia hispanica, para el sureste de la península ibérica, evidencia la notable complejidad morfológica de este género. Esta especie es muy próxima a S. fruticosa, ya que ambas tienen el hábito erecto y carecen de ramas enraizantes. Además, S. fruticosa ha sido tradicionalmente citada para la misma área geográfica de S. hispanica. Sin embargo, en la descripción original de S. hispanica no se indica si ambos taxones conviven y tampoco se aportan los caracteres morfológicos que los diferencian. El presente trabajo se centra en clarificar sus principales diferencias morfológicas, y dar respuesta a dos posibles hipótesis. En primer lugar, si estas dos especies coexisten, o en segundo lugar, ambas especies no convivirían y solo una especie arbustivas de hábito erecto, se reconocerían para el sureste peninsular. Para ello, se ha realizado un estudio morfológico detallado de ambas especies basado en diferentes caracteres vegetativos y reproductivos, junto con características obtenidas con MEB. Se han comparado los principales caracteres morfológicos indicados en la descripción original de S. hispanica, así como otros caracteres que apoyen la identificación de ambos taxones. Los datos obtenidos indican que la mayor parte de las características analizadas están solapadas entre ambas especies con independencia de su procedencia geográfica. Por tanto, no se han encontrado diferencias morfológicas entre ambos taxones, y se propone a S. hispanica como un sinónimo de S. fruticosa.

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Phylogenetic and morphometric analysis of Plantago section Coronopus (Plantaginaceae)

Höpke

Mucina

Albach

2019

TAXON

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Plantago sect. Coronopus contains our two focal species (P. coronopus L., P. crassifolia Forssk.), both with an overall conspicuous bi-hemispheric distribution range (Mediterranean and Middle Eastern regions in the Northern Hemisphere and South Africa in the Southern Hemisphere). We have evaluated up to 27 morphological characters from 96 herbarium specimens representing five out of seven species of that section that are currently recognised using principal coordinate analysis, linear discriminant analyses, agglomerative clustering, and classification tree analyses, in order to test the current taxonomic concepts of our two focal species. Furthermore, we used 54 individuals representing six out of those seven species of P. sect. Coronopus to construct molecular phylogenetic hypotheses by sequencing nuclear ribosomal DNA from the internal transcribed spacer region (ITS), the plastid trnL-F region, the plastid intergenic spacer region trnH-psbA and adopting maximum likelihood and Bayesian inference analyses. In the Northern Hemisphere, an Irano-Arabian clade initially identified as P. coronopus and shown as distinct in both morphological and phylogenetical terms fits a wider circumscription of P. crypsoides Boiss. due to lack of the prominent short and thick inflorescence scape following Boissier's description. The morphological differences between P. crassifolia from the Mediterranean region and P. crassifolia from South Africa (often named P. carnosa Lam.) were marginal, yet the molecular phylogenetic analyses of both nuclear and plastid markers clearly separated these evolutionary entities. Therefore, we re-instated the name P. carnosa as the correct name for South African P. crassifolia. Plantago carnosa differs from P. crassifolia by the combination of having stronger woody rootstocks, which are more often branched, by broader leaves (≥1.6 mm wide) and the fact that specimens more often turn brown when dried. Our dataset provides the best sampled phylogenetic hypothesis for P. sect. (and subg.) Coronopus to date, and reveals discordance between nuclear and plastid genealogies within P. sect. Maritima, which requires further investigation.Supporting Information may be found online in the Supporting Information section at the end of the article.

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Revision of Sarcocornia (Chenopodiaceae) in South Africa, Namibia and Mozambique

Cited by 26 publications

References 20 publications

A new species ofArthrocnemum(Salicornioideae: Chenopodiaceae-Amaranthaceae) from West Africa, with a revised characterization of the genus

A new species ofArthrocnemum(Salicornioideae: Chenopodiaceae-Amaranthaceae) from West Africa, with a revised characterization of the genus

Taxonomical identity of <em>Sarcocornia fruticosa</em> and <em>S. hispanica</em> in the Iberian Peninsula

Phylogenetic and morphometric analysis of Plantago section Coronopus (Plantaginaceae)

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