In
botany, an
obconic is an inverted cone shape. The term is most frequently applied to certain fruit or
hypanthium structures with the apical end attached to the stem; however, less frequently the usage may apply to the
pistil structure. In the case of
fungi the designation is often made to the
ascospore. The use of
obconic in botany dates to at least as early as the nineteenth century; however, some modern usage applies to an entire plant form, such as the shape of a whole shrub. More broadly, in geometry or design, the term can be assigned in an abstract manner to shapes in the natural or man-made world which show an inverted cone design.