Once income has been verified, use the following to determine qualifying quarters: If the year is: Credit 1 quarter for at least this amount. Credit 2 quarters for at least this amount. Credit 3 quarters for at least this amount. Credit 4 quarters for at least this amount.
Making the world better, one answer at a time. Periwinkles reproduce annually with internal fertilization of egg capsules that are then shed directly into the sea. The female periwinkle lay 10,000 to 100,000 eggs. Periwinkles reproduce annually with internal fertilization of egg capsules that are then shed directly into the sea. The female periwinkle lay 10,000 to 100,000 eggs.
Originally from southern Europe and northern Africa, periwinkle was introduced to the United States as an ornamental groundcover and medicinal herb (Schittler 1973). It spreads vegetatively and is not known to reproduce sexually in California (Bean and Russo 1986). Water can transport broken stem fragments throughout riparian zones, where the plantâs ability to resprout enables it to spread rapidly.