Some plants may have subaerial roots, Epiphyte plants growing above ground that do not feed from their tree support ( for example through their haustorium or feeding part having dug into the tree, such as Mistletoe ) have subaerial roots ( for example some Ficus species ).
22.
A reliable characteristic for distinguishing " Haustum haustorium " from its congeners is the angle by which the aperture lip inserts on the shell : In " Haustrum haustorium " the angle is near-perpendicular, whereas in other species the angle is more acute ( ~ 45 degrees ).
23.
A reliable characteristic for distinguishing " Haustum haustorium " from its congeners is the angle by which the aperture lip inserts on the shell : In " Haustrum haustorium " the angle is near-perpendicular, whereas in other species the angle is more acute ( ~ 45 degrees ).
