exsertion

noun

1. (countable, uncountable)protrusion; thrusting outward

   “These morphological variants in the size and shape of the upper lip are consistent with a series of counterparts in other floral organs, such as character of corolla throat, length ratio of corolla tube to corolla lobes, inflation of the lower part of the corolla tube, position of the anther and filament relative to the ovary and style and type of anther dehiscence, exsertion of the style with curvature type of style tip, and dorsoventrally equal/unequal development of the ovary (Figs. 1, 4, 8).”