"' Wrack "'is part of the common names of several species of seaweed in the family Fucaceae.
2.
The researches on the fecundation of the " Fucaceae " were published by Thuret in 1853 and 1855; the complicated and difficult question of the sexual reproduction in Floridae was solved by the joint work of Thuret and Bornet ( 1867 ).
3.
""'Fucus distichus " "'or "'rockweed "'is a species of brown alga in the family Fucaceae to be found in the intertidal zones of rocky seashores in the Northern Hemisphere, mostly in rock pools.