Abstract
In this contribution new chromosome data obtained on material collected in Italy are presented. It includes 9 chromosome counts for Polygala (Polygalaceae), Dianthus and Silene (Caryophyllaceae).
Highlights
Squash preparations were made on root-tips taken from plants cultivated in the Botanical Garden of Pisa and obtained from germinating seeds collected in the field
Polygala flavescens subsp. pisaurensis is an Italian endemic, originally described as a species based on plants from Pesaro (Peruzzi et al 2015)
Dianthus brutius subsp. brutius is endemic to Calabria (Peruzzi et al 2014), occurring in the mountain part of the Aspromonte area, and it belongs to D. vulturius Guss. & Ten. group (Brullo et al 2000)
Summary
Flavescens is an Italian endemic taxon, described from central Italy and currently recorded from Emilia Romagna to Basilicata (Conti et al 2005, Del Guacchio 2010). These are the first chromosome counts for this species (Bedini et al 2010 onwards), and they represent the first records of 2n = 22 cytotypes in the genus Polygala L.
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