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Esau cotyledon

I looked in  the (very  old )  book of Esau It indeed does not 
contain a definition of a cotyledon nor a picture of a germinating 
monocot. On p726 is a picture of an Allium seed . The cotyledon as 
shown will grow out first pushing out the apex but stays connected 
with the seed to extract  food from the endosperm via the terminal 
part of the cotyledon, the haustorium. Therafter the first 
true leaf will arise from the place mentioned in the picture as 
"epicotyl apex".I hope you ( Joe) and others are convinced now. If 
not ask again
Ben J.M.Zonneveld
Clusius lab pobox 9505
2300 RA Leiden
The Netherlands
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