calyptra corolla 2011-09-15T02:56:38Z A fused corolla (PO:0025581) that is composed of fused petals (PO:0025583). Often found in Eucalyptus and other Myrtaceae. The petals are generally completely fused. If an outer operculum (calyptra calyx) is present, it covers the inner operculum (calyptra corolla). Species of the subgenus Monocalyptrus have only a calyptra corolla (inner operculum) while in most other species, a calyptra calyx is also present, at least early in flower development. Not the same structure as a spore capsule calyptra or fruit operculum. Sometimes erroneously referred to as part of a fruit. PO:0025330 caliptra corola (Spanish, exact) corolla calyptrae (exact, plural) corolline operculum (exact) inner operculum (exact) operculum corolla (exact) plant_anatomy rwalls 蘚帽花冠 (Japanese, exact) fused corolla