Name;URL "Chromosome Counts Database*";ccdb.tau.ac.il "Plant DNA C-values Database*";data.kew.org/cvalues "International Organization of Plant Biosystematists";www.iopb.org "Scholar Google";scholar.google.com Scopus;www.scopus.com "Biodiversity Heritage Library";biodiversitylibrary.org JSTOR;www.jstor.org "Real Jardín Botánico CSIC";bibdigital.rjb.csic.es/spa/index.php "Naturalis Biodiversity Center";www.repository.naturalis.nl "Botanicus Digital Library";www.botanicus.org "Smithsonian Contributions to Botany";repository.si.edu/handle/10088/6943 Crossref;www.crossref.org