SEEDS AND SEEDLINGS 



7?, 



Other Foods in Corn Grain. — Other foods besides starch and 

 sugar are present in the curn grain. A test for proteid sh(jws that 

 a considerable amount of this food is present. Oil also is found. 

 In the sweet corn that we eat water forms a very large percentage 

 of its composition by weight. 



Monocotyledons, Dicotyledons, Vand Polycotyledons. — Plants 

 that bear soixls liaving but a single cotyledon arc called inonocoiij- 



A hardwood furr.-t .-liowint; nprcseutative di- 

 r(^t\'ledonous trees. 



A pine seedling. 

 Note the number 

 of cotyledons. 



ledons. (What are some other characteristics ?) Although we find 

 a good many monocotyledonous jilaiits in this part of the world, this 

 gi'oup is characteristic of the tropics, just as the tlicotyledons are 

 the type for the temperate climate. Sugar cane and many of the 

 large trees, such as the date palm, palmetto, and banana, are ex- 

 amples. Among the comnidii monocotyledons of the north tem- 

 perate zone are corn, lily, hotiiousc smilax, ami asparagus. Dicot- 

 yledons or plants having two cotyledons in the seed arc those ^vith 



