by Cassiano A. D. Welker, Michael R. McKain, Maria S. Vorontsova, Myriam C. Peichoto, Elizabeth A. Kellogg Sugarcane (Saccharum officinarum) is one of the most important crops in the world and a major source of sugar for human consumption. Despite this immense value, the circumscription of the genus Saccharum is complex, contentious, and largely unresolved. Saccharum is accepted in a broad sense by some authors or split into various genera such as Erianthus and Tripidium by o
by Ivana Janković, Zlatko Šatović, Zlatko Liber, Nevena Kuzmanović, Romeo Di Pietro, Ivan Radosavljević, Zoran Nikolov, Dmitar Lakušić Campanula versicolor is a constituent of the Campanula pyramidalis complex, distributed in the central and southern Balkan Peninsula with a small disjunct range in SE Italy. The taxonomy of the broadly defined C. versicolor was controversial in the past due to high morphological variability of the populations across the range. We used microsat
by Timothy Andrew Hammer, Xiao Zhong, Catherine Colas des Francs-Small, Paul G. Nevill, Ian D. Small, Kevin R. Thiele The informally named ‘aervoid clade’ in Amaranthaceae includes ~134 species in five genera: Ptilotus (~120 spp.), Aerva (11 spp.) and the monotypic Nothosaerva, Omegandra, and Kelita. The relationships of the small aervoid genera to the large genus Ptilotus, and relationships between major clades within Ptilotus, are poorly resolved. The aims of this study wer
by Jian-Qiang Zhang, Yuan-Cong Li, Jun Wen, Yi Ren An essential component of biodiversity research and conservation is to accurately delimit species. Traditional morphology-based taxonomy has faced great challenges in complex taxa. In the last few years, the focus of species delimitations has shifted from defining species using different species concepts to integrating multiple lines of evidence to characterize different aspects of the speciation process. This study employs a
by Étienne Léveillé-Bourret, Julian R. Starr The circumscription of the circumboreal tribe Scirpeae has been contentious since the earliest infrafamilial classifications of the Cyperaceae (>100 genera, ~5,500 species). Molecular phylogenetic studies place Scirpeae in a strongly supported clade with the enigmatic genus Khaosokia and tribes Cariceae, Dulichieae, and Sumatroscirpeae, a lineage comprising more than 40% of all Cyperaceae species. This lineage was previously known
by Diego Rivera, Concepción Obón, Francisco Alcaraz, Teresa Egea, Manuel Martínez-Rico, Encarna Carreño, Emilio Laguna, Dennis Johnson, Isabel Saro, Pedro Sosa, Agustín Naranjo, Francesco Salomone, Pedro Luis Perez de Paz The nomenclature of the Canary Island endemic palm with red-bluish fruits is reviewed. Phoenix senegalensis, and P. menieri are neotypified, P. canariensis var. porphyrococca is lectotypified. Fulchironia senegalensis is a nomen nudum.
by Pedro Jiménez-Mejías, Edoardo Martinetto, Adriano Soldano, Laurence J. Dorr Carex elata All. is a well-known species widely distributed in western Eurasia. The name C. elata All. is the oldest name applied to the species of concern, but it was abandoned for C. stricta Gooden. At the end of the 19th century and the beginning of the 20th century, different authors dismissed C. stricta Gooden. as a later homonym of C. stricta Lam. and simultaneously resurrected C. elata All.
by Matthew Pace, Kenneth Cameron The morphologically overlapping and frequently syntopic species of Spiranthes (Orchidaceae) found in the Sierra Nevada of California and Cascade Range of Oregon –S. porrifolia, S. romanzoffiana, and S. stellata– have long been a source of taxonomic confusion. Much of this confusion is attributed to hypothesized hybridization between species, and a lack of agreement concerning the distinctiveness of S. stellata from S. romanzoffiana. We used mo
by Lucinda A McDade, Darbyshire Iain, Amanda Fisher, Carrie Kiel Barleria is a genus of ~300 species of herbs and shrubs in Africa and Asia, with highest diversity in tropical east Africa and southern Africa. The genus is part of Barlerieae (Acanthaceae), a lineage that is distinguished from other Acanthaceae by quincuncial corolla aestivation. Unequivocal synapomorphies have yet to be identified for Barleria. However, among Barlerieae, species of Barleria can be recognized b
by Diego Rivera, Concepción Obón, Alcaraz Francisco, Antonio Reales, José Antonio Barreña The group of intermediate sage cultivars of hybrid origin which was alternatively ascribed to Salvia fruticosa Mill. or S. officinalis L., is interpreted as their interspecific hybrid Salvia x auriculata Mill. Neotypification of Salvia auriculata Mill. is proposed to name these intermediate hybrids.