@article {656, title = {The Cleistogamous Breeding System: A Review of Its Frequency, Evolution, and Ecology in Angiosperms}, journal = {The Botanical Review}, volume = {73}, year = {2007}, month = {01/2007}, pages = {1 - 30}, issn = {0006-8101}, doi = {10.1663/0006-8101(2007)73[1:TCBSAR]2.0.CO;2}, author = {Culley, Theresa M. and Klooster, Matthew R.} }