THE VIRGINIA PITCHER PLANT BOGS. IV. SEED DISPERSAL AND DISSEMINATION
IN A SUFFOLK COUNTY POPULATION OF SARRACENIA FLAVA L.

Philip Sheridan, Meadowview Biological Research Station and Dept. of Biology, Virginia Commonwealth University.

A historic site for Sarracenia flava was rediscovered during 1983 in Suffolk County in depauperate condition.  The bog had been mined for clay in previous decades and efforts were made to clear local vegetation to revive the colony.  When these efforts failed forty rhizomes were relocated within the clay pits to open habitat on clay islands or shores within the extensive water-filled pits.  After three years, flowering was observed and by 1991 several seedlings were found.  Seedlings and young plants increased to 30 and 149 individuals by 1993 and 1996 respectively.  Recruits were observed a maximum of 300 feet from parents and colonization occurred on exposed clay soils on islands and occasionally on slightly higher grassy ecotones.  Sarracenia seeds are highly hydrophobic and it is hypothesized that this dissemination occurred through flotation or to a much smaller extent by adherence to the feet of migratory animals.