Peruzzi, L., Passalacqua, N. G. & Gargano, D.: Re-evaluation of Polygala apiculata (Polygalaceae), a rare endemic of S Italy. — Willdenowia 35: 65–68. — ISSN 0511-9618; © 2005 BGBM Berlin-Dahlem. doi:10.3372/wi.35.35104 (available via http://dx.doi.org/)
Polygala apiculata is studied on living plants from the locus classicus. 2n = 24 chromosomes were counted, indicating a possibly triploid genomic constitution. The species is unique in the genus for the crown-like arranged caruncle lobes of its seeds. Its occurrence is confirmed for Calabria only and the IUCN conservation status “Critically Endangered” is proposed. A lectotype of the name P. apiculata is designated.