@article {203, title = {Phylogenetic Studies in Alismatidae, II: Evolution of Marine Angiosperms (Seagrasses) and Hydrophily}, journal = {Systematic BotanySystematic Botany}, volume = {22}, number = {3}, year = {1997}, pages = {443-463}, author = {Les, Donald H. and Cleland, Maryke A.} }