MrBayes Nexus file - 2 partitions, separate rates, all aquatics except O. natans constrained to monophyly

Nexus file for the best-fitting, non clock-constrained partitioning scheme (separate trnLF and trnSG partitions, each with their own independent rate), with O. disticha, O. dines, O. dregei and the Bitterfontein taxon forced to monophyly. The remaining vernal pool species, Oxalis natans, is allowed to find its own place in the tree.