The epithallium or epithallus is the outer layer of a crustose coralline alga, which in some species is periodically shed to prevent organisms from attaching to and overgrowing the alga.[1]
^Johnson, C.; Mann, K. (1986). "The crustose coralline alga, Phymatolithon Foslie, inhibits the overgrowth of seaweeds without relying on herbivores" (PDF). Journal of Experimental Marine Biology and Ecology. 96 (2): 127–146. doi:10.1016/0022-0981(86)90238-8.
are also common. The epithallus sometimes overlies the roof of conceptacles, which are exposed only when the overlying epithallus is eventually shed. The...
be divided into three layers: the hypothallus, perithallus and epithallus. The epithallus is periodically shed, either in sheets or piecemeal. Corallina...
taxonomically informative character. It periodically sloughs off its epithallus, reducing its overgrowth by algae by as much as 50% compared to bare rock...
genera. They can often only be distinguished by the male genitalia. The epithallus typically consists of three lobes, the middle one being longer and more...
surfaces and prepares it for colonization by other organisms. It sheds its epithallus occasionally in order to prevent other organisms growing over it. Still...
underlying surface. Lithophyllum reproduces by means of conceptacles. The epithallus is periodically shed to avoid organisms growing on top of the alga. The...
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