178 ' BOTANICAL GAZETTE [SEPTEMBER 
Sub-order Myrtatles. 
Families: Lythracee, > Melastomacee, Myrtacee, Combretacex, 
Rhizophoracez; > Onagracee, Haloragez ; > Aristolochiacee, Cytinacee 
Sub-order Passifiorales, 
Families: Loasaceze, > Turneracez ; > Passifloraceze ; > Cucurbitacez 
> Begoniacez, Datiscacez 
Sub-order Celastrales. 
Families: Rhamnacez, > Celastraceze, Stackhousiacee, Olacacee, San- 
talacez, Loranthacez, Balanophoracez ; > Ilicineze ; > Vitacez ; > Thyme- 
leacee, Eleagnacee, Proteacee ; > Penzacee. 
Sub-order Sapindales. 
Families: Sapindacee, >>Sabiacee, Anacardiacee, Juglandaceze ; 
> Betulacee, Fagacez ; > Myricaceze ; > Casuarinacez (?). 
Sub-order Umbellales. 
Families: Araliaceze, > Umbelliferz ; > Cornacez. 
ORDER INFER&. 
Sub-order Rubiales. 
Families: Rubiacez ; Caprifoliacez.” 
Sub-order Campanales. 
Families: Campanulacee, > Goodeniacee, Candolleacez. 
Sub-order Asterales, ; 
Families: Valerianaceez, > Dipsacee ; > Calyceracez ; >> Composite. 
THE UNIVERSITY OF NEBRASKA. 
7 It seems probable that the two families of Rubiales originated independently, 
the Rubiacez from Araliacez, and the Caprifoliaceze from Cornacez. 
