DICOYTLEDONES 443 



The Cornaceae are mostly shrubs or trees with flowers in umbels, which are 

 sometimes compact and surrounded by showy bracts as in Cornus florida. 



The Families of Choripetalae (Engler and Prantl, 9) 

 Order I. Centrospermae 



Suborder Chenopodiineae 



Homochlamyd. bracteoid perianth. . . j fam ' J' Chenopodiaceae 



2. Amarantaceae 



Suborder Phytolaccinese 

 fam. 1. Nyctaginacese 

 " 2. Batidaceae 

 " 3. Cynocrambaceae 

 " 4. Phytolaccaceae 

 " 5. Aizoaceae 



Suborder Portulacineae 



Heterochlam. . . . ( fam ' J- Portulacaceae 



1 " 2. Basellaceae 



Suborder Caryophyllineae 

 fam. 1. Caryophyllaceae 



Hoinochlam. petaloid perianth 



Mostly homochlam. . . . 

 Homo- or heterochlam. 



Order II. Ranales 



Suborder Nymphaeineae 

 Homo-heterochlam .................... f fam } N y mph8Bacea 



Carpels 3-oo ..... .................. 4 , 2 C eratophyllace 



Homochlam. , 1 carpel .................. I 



Suborder Trochodendrinese 

 Flowers naked, spirocyclic ............. fam. 1. Trochodendraceae 



Suborder Ranunculinese 

 Flowers spiral or cyclic ................ r fam. 1. Ranunculacese 



Homo-heterochlam., cyclic-homochlam. . 



Cyclic, homo-heterochlam 



Cyclic 



" 2. Lardizabalaceae 

 " 3. Berberidaceae 

 " 4. Menispermaceae 



Suborder Magnoliineae 

 Acyclic Spirocyclic .................. fam. 1 . Magnoliacese 



Acyclic 



Cyclic ...................... I 



Spirocyclic, mostly heterochlam ......... / 



Cyclic-homochlam ..................... 1. 



Spirocyclic, homo- or heterochlam 

 Cychc-homochlam 





2. Calycanthaceae 



3. Lactoridaceae 



4. Anonaceae 



5. Myristicaceae 



g Lauraceaa 



9. Hernandiacese 



