Typification of the name Senecio pygmaeus (Asteraceae), with some additional taxonomic and phytogeographic remarks

A thorough research on the scientific activity of Guglielmo Gasparrini, Giovanni Gussone and Augustin Pyramus De Candolle allowed authors to adress a in several European herbaria looking for type name Senecio pygmaeus DC. The original specimen sent by mentioned protologue is still kept at G-DC designated as lectotype, whilst three other herbarium sheets, preserved NAP-GUSS, PAL PAV respectively, all probability belong same gathering, are considered isolectotypes. provide an updated description this taxon order better point out its diagnostic characters. However, further biosystematic phytogeographic surveys needed ascertain taxonomic value distribution range S. pygmaeus. Indeed, it might represent just dwarfed, salt-tolerant ecotype leucanthemifolius Poir. or vulgaris L., hence be more widespread than previously reported, counting numerous scattered populations along rocky shores central eastern Mediterranean countries.