Teioecious. Stamiaate, pistillate, and hermaphrodite 

 flowers on different hi-anches, as in ash. 



Monoecious. Staminate and pistillate flowers separ- 

 ated but on the same plant, as in corn, melon, oak. etc. 



FIG 1. 



Fig-. 1. Eel grass (VdlUsneria spiralis);— a,, pistillate flower; b. male flower; 

 c. floatiug' staminate flowers with pollen. (After Lubbock). 



Gynodioecious. Som^. plants produce hermaphrodite 



flowers, others only pistils without stamens, as in thyme. 



Andromonoecious. Some plants produce hermaphro- 



