Synoptic Index 



XI 



carpels 



b. Achlamydeous floivers rare : when they occur 

 they are mostly due to reduction 

 and are correlated with spathe- 

 development. Definite number of 

 stamens and carpels dominant, but 

 numerous stame?ts and more than 

 three carpels often occur 



Order 4. Spathiflorae 



Fam. I. Araceae .... 

 Fam. 2. Lemnaceae .... 



B. Orders with typically pentacyclic 

 flowers. Whorls typically 

 isomerous, mostly 3-merous . 



a. Flowers homochlamydeous to heterochlamy- 

 deous, very rarely by reduction 

 naked. Bracteoid perianths still 

 occur but petaloid perianths pre- 

 dominate. Hypogyny and Actino- 

 morphy preponderate . 



Order 5. Farinosae 



Fam. Eriocaulaceae .... 



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