XI 
SYSTEMATIC ARRANGEMENT ADOPTED IN THIS 
CENSUS. 
PTERIDOPHYTA— 
Filicales— 
Hymenophy 11 a cere 
Cyatheaceae 
Poh T podiacese 
Gleicheniaceae 
Schizaeaceae .. 
Osmundaceaa 
Salviniaeeae.. 
Marsileaceae 
Ophioglossaceae 
Lycopodiales— 
Lycopodiaceae 
Psilotaceae .. 
Selaginellaceae 
Isoetaceae .. 
SPERMATOPHYTA— 
GYMNOSPERM/E— 
Coniferae— 
Taxaceae 
Pinacese 
ANGIOSPERMiE— 
Monocotyledons— 
Typhaceae v . 
Sparganiaceae 
Potamogetonaceae 
Naiadaceae .. 
Scheuchzeriaceae 
Alismataceae 
Hydrocharitaceae 
Gramineao .. 
Cyperaceae .. 
Palmaceae .. 
Lemnaceae .. 
Restionaceae 
Centrolepidaceae 
Genera Species 
2 5 
3 4 
. 23 50 
1 3 
1 2 
1 1 
1 2 
. 2 3 
2 3 
2 7 
2 2 
1 2 
1 1 
1 1 
1 6 
1 1 
1 1 
6 15 
1 1 
1 7 
2 2 
4 4 
50 126 
19 111 
1 1 
3 5 
5 13 
3 9 
* 
