1902] EMBRYOLOGY OF LIMNOCHARIS 219 
EXPLANATION OF PLATE IX. 
Fig. 1 Very young ovule. 
Figs, 2, 3. Older stages of ovule showing archesporium (A). 
Fic. 4. Ovule; es, embryo-sac; /7, false tapetal cell; ¢, tapetum. 
Figs. 5-7. Different stages of embryo-sac; a, antipodal. 
Fic. 8. Mature embryo-sac; a, antipodal; #f, upper polar; ¢, egg cell; 
55, synergids, : 
Fics. 9, 10. Lower end of embryo-sac showing antipodal (a) and upper 
polar (up) in process of division. 
Figs. 11, 12. Embryo-sac showing peculiar cell cut off from sac at antip- 
odal end, and endosperm nucleus (en). 
Fig. 13. Young embryo; e, ‘‘embryo-cell ;”” s, suspensor. 
Figs. 14-16, Succeeding stages of young embryo; fg. 75, two sections 
of same embryo. 
Figs. 17 4, 6,c. Three sections of one embryogenic mass (em) with 
embryo-buds (e). 
Figs, 18-30. Sta 
F 
ges of embryo; gf, growing point in figs. 22-29. 
1G. 31. Mature embryo; gf, growing point. 
