Phylogeny and species delimitation in Silene sect. Arenosae (Caryophyllaceae): a new section

Abstract

A putatively monophyletic group of annual Silene species is revised taxonomically and described as the new section S. sect. Arenosae. The species of this section were previously treated as a part of a widely circumscribed and polyphyletic S. sect. Rigidulae. Silene sect. Arenosae as circumscribed here consists of nine species. Members of the section show a predominantly E Mediterranean to SW Asian distribution pattern from Turkey southward to Egypt and eastward to Iran and Pakistan, although most of the species have a limited distribution range. The species of S. sect. Arenosae are characterized by narrowly lanceolate calyx teeth, which are often highly polymorphic, and lanceolate to oblanceolate (non-spathulate) basal leaves. The provided taxonomic revision is based on morphological characters and supported by phylogenetic analyses of two nuclear loci (nrITS and an intron of the RPB2 gene) and one chloroplast locus (the intron of the rps16 gene). The species descriptions are formalized using a novel implementation of the Prometheus Description Model.

Taxonomic remarks on the south‐east European and west Turkish Silene lydia (Caryophyllaceae)

“…A twelfth section ( S. sect. Arenosae Eggens, F. Jafari and Oxelman) was proposed by Eggens et al (2020). However, there were also species or groups that were unplaced and considered as incertae sedis by Jafari et al (2020).…”

Effect of two different base cuts and indole-3-butyric acid (IBA) doses on rooting of stem cuttings of wild Silene compacta Fischer

“…Silene L., which has been an ecologically important plant group since ancient times, is a member of the Caryophyllaceae family (Ferreira et al, 2015). Silene L., one of the largest genera in the world flora, contains approximately 870 plant species (Eggens et al, 2020;Guner et al, 2012;Jafari et al, 2020;Moiloa et al, 2021).…”

Silene isabellae (Caryophyllaceae), a new campion species from serpentine soils of Albania

“…including ca. 870 species of annual or perennial herbs, more rarely shrubs, that are mainly distributed in the Northern Hemisphere, south America and South Africa ( Eggens et al 2020 ; Jafari et al 2020 ). Based on recent molecular phylogenetic evidence, the genus is subdivided into three subgenera and 44 sections ( Jafari et al 2020 ).…”