APPENDIX Morphological data set for Pontederiaceae taken from Eckenwalder and Barrett (1986), with some revisions. Corrected entries are indicated with asterisks. Philydrum lanuginosum (Philydraceae) is the outgroup. Two taxa have been added to the matrix (Eichhornia paradoxa and E. meyeri). An undescribed species of Eichhornia, referred to here as Eichhornia sp., was incorrectly identified as E. paradoxa by Eckenwalder and Barrett (1986). One new character is added (number 43) and one deleted (character 19). The numbering of the remaining characters is retained for consistency. The character state 1' in Eckenwalder and Barrett (1986) is replaced with 4 here. Characters 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 Taxon Philydrum lanuginosum 0 1 0 0 0 0 0 1 2* 0 2* 1* 0 0 0 0 0 0 1 0 4* 1 4* 0 0 1 1 1 0 0 2 ?* 0 0 0* 1 0* 0 0 0 0 0 Pontederia cordata var. cordata 0 1 0 0 0 0 0 0 0 1 4 1 1 0 0 1 0 1 1* 1 4 1 0 0 2 1 0 0 0 0 0 0 0 0 0 0 2 2 1 2 2 0 Pontederia cordata var. lancifolia 0 1 0 0 0 0 0 0 0 1 0 1 0 0 0 1 0 1 1* 1 4 1 0 0 2 1 0 0 0 0 0 0 0 0 0 0 2 2 1 2 2 0 Pontederia cordata var. ovalis 0 1 0 0 0 0 0 0 0 1 4 0 0 0 0 1 0 1 1 1 4 1 0 0 2 1 4 0 0 0 0 0 0 0 0 0 2 2 1 2 2 0 Pontederia rotundifolia 0 1 0 1 0 0 0 0 0 0 4 1 2 1 0 2 0 1 1* 1 1 1 0 0 2 1 0 0 0 0 0 0 0 0 0 0 2 2 1 3 2 0 Pontederia sagittata 0 1 0 0 0 0 0 0 0 1 4 1 2 0 0 1 0 1 1* 1 4 1 0 0 2 1 0 0 0 0 0 0 0 0 0 0 2 2 1 1 2 0 Eichhornia azurea 0 1 0 1 0 1 0 0 0 0 4 1 0 2 1 2 0 1 1* 1 0 1 1 0 3 1 0 0 0 1 0 0 0 0 0 0 0 0* 0 0 1 0 Eichhornia crassipes 0 1 0 0 1 0 0 0 1 0 4 1 1 1 1 2 0 1 1* 1 1 1 1 0 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Eichhornia diversifolia 1 1 0 1 0 1 0 0 0 0 4 4 1 1 1 2 1 1 1* 1 2 1 0 1 3 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Eichhornia heterosperma 0* 1 0 1 0 1 0 0 0 0 0 0 0 2 1 2 1 1 1* 1 2 1 0 1 3 1 0 0 0 0 0 0 0 0 0 0 0 0* 0 0 1 0 Eichhornia meyeri 2 1 0 0 0 0 0 0 0 0 4 0 1 0 0 2 0 0 1 0 1 1 4 0 4 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Eichhornia paniculata 2* 1 0 0 0 0 0 0 0 0 4 0 1 0 0 0 0 0 1 1 4 1 0 0 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Eichhornia paradoxa 2 1 0 0 0 0 0 0 0 0 1 1 0 0 0 3 1 0 0 0 2 1 0 1 3 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Eichhornia sp. 2 1 0 0 0 0 0 0 0 0 2* 0* 0 1 0 3* 1 0 0 0* 2 1 0 1 4 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Monochoria cyanea 1 1 0 0 0 0 0 0 0 0 4 1* 0* 0 0 2 0 1 0 0* 2 0 4* 0 1 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0* 1 Monochoria hastata 0* 1 0 0* 0 0 0 0 0 0 4 1* 2 0 0 2,3* 1 1 0 0 1 0 4* 0 1 1 0 0 0 0 0 1 0 1 1 0 0 0 0 0 0 1 Monochoria korsakovii 1* 1 0 0 0 0 0 0 0 0 4 1* 1 0 0 0* 0 1 0 0 1 0 4* 0 1 1 0 0 0 0 0 1 0 1 1 0 0 0 0 0 1* 1 Monochoria vaginalis 1 1 0 0 0 0 0 0 0 0 0* 1* 1 0 0 2,3* 1 1 0 0 2 0 4* 0 1 1 0 0 0 0 0 1 0 1 1 0 0 0 0 0 0 1 Heteranthera dubia 0 1 1 1 0 1 0 0* 2* 0 2* 0* 0 1 0 2 1 0 0 1 3 0 4 1 4 1 1 0 0 0 1 0 1 0 1 1 0 1 0 0 1 0 Heteranthera limosa 2 1 0 0 0 0 0 0 0 0 0 4* 1 1 0* 2 1 0 0 1 3 1* 0 1 4 1 0 0 0 0 1 1 0 0 1 0 0 0 0 0 0 0 Heteranthera oblongifolia 2 1 0 1 0 0 0 0 0 0 0 0* 1 1 1* 2 1 0 0 1 2 1* 0 1 3 1 0 0 0 0 1 1 0 0 1 0 0 0 0 0 0 0 Heteranthera rotundifolia 2 1 0 1 0 0 0 0 0 0 4 0 1 1 1 2 1 0 0 1 3 1 0 1 3 1 0 0 0 0 1 1 0 0 1 0 0 0 0 0 0 0 Heteranthera seubertiana 2 1 0 0 0 1 0 0* 2* 0 1 1* 0 1 0 2 0 0 1 1 1 1 4 1 3 1 1 0 4 0 1 1 0 0 1 0 0 0 0 0 0 0 Heteranthera zosterifolia 1 1 1 1 0 1 0 0 0 0 1 4* 0 1 0 2 1 0 0 1 2* 1* 4 1 4 1 0 0 0 0 1 1 1* 0 1 0 0 0 0 0 0 0 Hydrothrix gardneri 2 1 1 0 0 1 1 0* ?* 0 ?* ?* ?* ?* ?* 4* 1 0 0 1 2 1* 4 1 2* 1 1 0 0 0 2 ?* 0 0 1 0 0* 0 0 0 0 0