448 GLOSSARY 



alent to the "plastids" of Schimper, including "anaplasts" (amyloplasts), 

 "autoplasts" (chloroplasts), and chromoplasts. (A. Meyer, 1882-83.) 



Yolk-nucleus, a word of vague meaning applied to a cytoplasmic body, single or 

 multiple, that appears in the ovarian egg. [Named " Dotterkern " by Carus, 

 1850.) _ 



Zy'gote or Zy'gospore (^vjydv, a yoke), the cell produced by the fusion of two 

 conjugating cells or gametes in some of the lower plants. 



