No, not Gilligan's Island. This is a picture from a couple years back of a thalloid liverwort growing between patio bricks on the shady side of our house. It is the haploid gametophyte stage (the dominant stage), and the stellar structures are archegonia, which produce the female gametes.
A nice diagram of the life cycle of liverworts, much clearer than any text book image I had to struggle with, is given in Wikipedia:
From Wikipedia, provided by LadyofHats