Historical reference: Do not rely on this information. It is very old. About this collection
Dichlamydeous, a term of Greek origin applied to such flowering plants as have a perianth of two whorls of leaves - i.e. both calyx and corolla (q.v.) - and are also known as complete, in contradistinction to the Incompletee, which are either monochlamydeous, having one floral envelope, or achlamydeous, having none.