This is the raw data detailing the type of cleistogamy reported within 628 individual species in the scientific literature, as of October 2005. This data underlies the following study:
Culley, Theresa M and Matthew R Klooster (2007) The cleistogamous breeding system: A review of its frequency, evolution, and ecology in angiosperms. The Botanical Review 73(1): 1-30.