( 400 ) 
59. Outline sketch showing proportions of nucellus, embryo and endo- 
sperm 40. 
60. Boniba of endosperm from same. X 440. 
61. Embryo from 59. 
62. Embryo and endosperm. 40, 
Momordica Charantia (PLATES 61 AND 62). 
63. Young ovule showing megaspore-mother-cell. >< 184. 
64. pipes lsat See 
65. Embryo-sac of tw 
66, 66a. Different Beiter through the same embryo-sac. XX 440. 
67. Pollen-tube, embryo, and ea et X 440. 
68. Embryo and endosperm. 
69. Embryo, pollen-tube and eae XK 36. 
70. Embryo, cellular endosperm. > 440. 
71. Showing relative proportions of embryo, endosperm and ovular 
tissue. X 36, 
Luffa acutangula (PLATES 62 AND 63). 
72, 73, 74. Megaspore-mother-cells at ary ages. X 440. 
75. Megaspores, functional one a xX 440. 
78. Hight-celled embryo-sac. XX 440. 
79. Embryo-sac near maturity. > 440. 
80. Odspore and endosperm containing scattered starch-grains. Disinte- 
grating nucellar cells. 440. 
81. First division of odspore completed. 
Cucumis myriocarpus (PLATES 63 AND 64). 
82. Primary sporogenous cell and tapetum. > 440. 
83. Telophases of the second division of the megaspore-mother-cell. XX 
440. 
84. Embryo-sac near the definitive stage. >< 440. 
85. Representing — of three cells. XX 440. 
86. Similar to 85. 
87. Young embryo and oeeear xX 440. 
88. Embryo, endosperm and polled “abe: Showing effect of endosperm 
on cells of nucellus. 184. 
89. Embryo of same. X 440. 
go. Embryo. & 440. 
gt. Embryo, endosperm and nucellus. > 4o. 
92. Apical region of radical end of embryo from 91. 440. 
93. Portion of endosperm ; the large cells are at the center of the mass, 
the small ones at the periphery. > 440. 
Lagenaria Lagenaria (PLATE 64). 
94. Apex of young ovule before differentiation of archesporium. X 440. 
95. Sporogenous cell and tapetum. > II4. 
