(Of flowers) upside down, or seemingly so.
Inverted because of a 180 degrees twist in a petiole or pedicel.
(Of fruit body) Lying flat, crus-tlike on substrate with hymenium facing outward, lacking a stem or well-defined cap.
Often in reference to flowers of Orchidaceae in which the lip is lowermost, achieved by twisting or bending of the ovary or the inflorescence being pendent.