The Collaborative International Dictionary of English v.0.48:

Blolly \Blol"ly\, n. (Bot.)
   (a) A shrub or small tree of southern Florida and the West
       Indies (Pisonia obtusata) with smooth oval leaves and a
       hard, 10-ribbed fruit.
   (b) The rubiaceous shrub Chicocca racemosa, of the same
       region.
       [Webster 1913 Suppl.]