496 BOTANICAL GAZETTE [December 



Fig. 69. — Nucleus of middle cell in prophase. 

 Fig. 70. — Nucleus of middle cell in early anaphase. 



Fig. 71. — Cross-section of a female gametangium of 2 cells: nucleus in 

 anaphase viewed from the pole, clearly showing 24 chromosomes. 



Fig. 72. — Cross-section of a female gametangium of 5 cells: nucleus in 



am 



composed of 3 rows of cells. 



PLATE XXV J II 



The formation of the female gametangium of Culleria multifida (continued) 



Fig. 73. — Cross-section of a female gametangium of 8 cells in two rows: 

 one nucleus in late prophase, showing 24 chromosomes. 



Fig. 74. — Portion of a female gametangium of 8 cells in two rows: one 

 nucleus in late prophase, polar view of which is shown in the previous figure; 

 nucleus in basal cell in early prophase. 



Fig. 75. — Portion of a female gametangium of 7 cells: one nucleus is in 

 late prophase, showing 24 chromosomes, which will result in two cells arranged 

 side by side in the direction perpendicular to the plane of the paper. 



Fig. 76. — Portion of a female gametangium of 8 cells: one nucleus in 

 anaphase. 



Fig. 77. — Portion of a female gametangium of 8 cells: one nucleus in late 

 anaphase. 



Fig. 78. — Cross-section of a female gametangium of 10 cells: one nucleus 

 in metaphase of the division which divides the gametangium into a structure 

 of three rows of cells. 



Fig. 79. — Portion of a female gametangium of 10 cells: one nucleus in 

 metaphase. 



Figs. 80, 81. — Portion of a female gametangium of 10 cells: one nucleus 

 in anaphase in both figures. 



Fig. 82. — Portion of a female gametangium of 10 cells: one nucleus is in 

 metaphase and two others have already divided. 



Fig. 83. — Portion of a female gametangium of 10 cells: one nucleus in 

 prophase, showing 24 chromosomes, one nucleus in late anaphase and the other 

 two have already divided. 



Fig. 84. — Portion of a female gametangium of 10 cells: one nucleus in 

 early metaphase viewed from the pole, showing 24 chromosomes. 



Fig. 85. — Portion of a female gametangium of 12 cells: one nucleus in 

 anaphase and the other two have already divided. 



Fig. 86. — Portion of a female gametangium of 12 cells: one nucleus in 

 early metaphase, viewed from the pole, showing 24 chromosomes; the other 

 nucleus in metaphase in lateral view. 



Fig. 87.— Portion of a female gametangium of 15 cells: one nucleus in 

 prophase. 



Fig. 87a.— The nucleus in prophase in the previous figure under higher 

 magnification: 24 chromosomes present. 



