232 BOTANICAL GAZETTE [APRIL 
Fic. 45. Secreting cells from a nectary showing the appearance of the 
cytoplasm and nuclei. X 400. 
PLATE XXIV. 
Fic. 46. Three-celled pro-embryo with synergid (s) on the side of the 
vesicular cell @ ; middle celi (4) dividing. 400. 
Fic. 47. Three-celled pro-embryo with terminal cell dividing. * 400. 
Fic. 48. Four-celled pro-embryo with ipa (s) beside the vesicular 
cell ; the free nucleus is endosperm. X 4 
Fic. 49. Four-celled pro-embryo with terminal cell (c) dividing. X 400. 
Fig. 50. Five-celled pro-embryo. X 400. 
Fic. 51. Five-celled pro-embryo with the two middle cells dividing. < 
400. 
FIG. 52. Five-celled pro-embryo with the cells in a single row. X 400. 
Fic. 53. Six-celled pro-embryo with synergid above the vesicular cell. 
mM 216. 
Fic. 54. Six-celled pro-embryo with synergid. < 400. 
Fic. 55. Seven-celled pro-embryo with synergid above the vesicular cell; 
the two lowest cells each with a cell beneath, which does not appear in the 
figure. X 400. 
Fic. 56. Seven-celled pro-embryo ; the free nuclei are endosperm. X 216. 
Fie. 57- Seven-celled pro-embryo with one of the scsi at the tip divid- 
ing. X 400. 
Fa x Upper end of embryo sac with a nine-celled pro-embryo; the 
_ nucleus above the vesicular cell belongs to the synergid. * 216. 
Fig. §9. Ten-celled pro-embryo. 400. 
FiG, 60. Ten-celled pro-embryo ; the two cells not shown belong to low- 
est tier. X 216. 
Fic. 61. Eleven-celled es with synergid. < 400. 
PLATE XXV. 
-. 1G. 62. Twelve-celled nies with synergid; two cells in the lowest 
tier not shown. X 400 
Fic. 63. Eleven-celled pro-embryo ; the two cells not shown belong to 
lowest tier ier. ae 
; 
ro with scones cut off from the octant which forms 
Fie. 65. ‘Ecce deaeiag tk Tee on synergid and vesicular : 
at this stage, anc elopme: ofthe dermarogen’ 422 
