Place of publication:
Pleione 4:152. 2010, nom. inval.
Comment:
the erroneous full and direct reference to the presumed basionym, "Costus speciosus Koenig ex Sm. Trans. Linn. Soc. 1: 249. 1791", cannot be corrected, as this name was itself a new combination based on a cited earlier name, "Banksea speciosa J. Koenig (1783)", so this designation was not validly published (Melbourne ICN Art. 41.8(a) and Ex. 20)