Explanation of Plate 2 
. The embryo-sac mother cell has mi egies down the micropylar canal, hav- 
ing aban to one side of the nucellar cells which cap the archesporium. The remain 
ing pago are beginning to disintegrate, Xx 670. 
re . Embryo-sac with four nuclei, X 670, 
. Embryo-sac with eight nuclei. One of the antipodals is cut off from the 
seven nuclei by a transverse wall, 670.‏ بت 
ig. 4. Egg apparatus and antipodals definite. Approach of polar nuclei, 472.‏ 
Fig. 5. Fusion of polar nuclei completed. The position of endosperm nucleus is‏ 
near the middle of the sac, 472,‏ 
. 6 7. Approach of endosperm nucleus toward the egg, and their con- 
cómitant increase in size, X 472. 
ig. 8. Mature embryo-sac. 
X 670. 
Fig. 8a. Egg and e ndosperm nuclei of the same, 1350. 
Fig. 9. After fertilization ; embryo is still sais called y several endosperm nuclei 
are now present; the disintegrated megaspores are now duty absorbed ; the endo- 
sperm سم‎ to encroach on the integument, 
Fig. 
The endosperm. nucleus is now applied to the egg, 
o. Embryo two-celled. The دی میج‎ in which walls begin to appear, 
rts further upon the integument, X 315. 
Fig 
. II. Three antipodal cells, X 670. 
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