244 BOTANICAL GAZETTE * [octos 
PLATE XIV, 
Magnification in figs. 74, 80, 82,87, 88, 1500 diameters; fig. 76, 2200 
diameters ; figs. 75, 77, 78, 4, 85, 86, 3300 diameters. 
Fig. 74. Coenocentrum and differentiated oosphere with dividing nuclei. 
The broken empty portion is where the protoplasm shrunk away from the 
autheridial tube. Section adjacent to that shown in fig. 70. 
Fig. 75. Ccenocentrum, in an oogonium, at anaphase period of zonation, 
consisting of three small globules evidently fusing, surrounded by a region of 
denser i siaaea granules resembling small oil drops scattered through the 
ooplasm 
1G. 76. Similar to fg. 77 but somewhat older, antheridial tube showing 
many nuclei, slightly torn near tip, antheridium becoming vacuolate ; p, peri- 
plasm ; 4, film; 9, female nucleus. 
Fic. 76 a. Portion of the tip of the same tube, found in an adjacent 
section. 
G. 77. View of the end of an unopened antheridial tube, wall not 
se sperms very numerous and crowded, each showing a dark nucleolus, 
ooplasm slightly shrunken away from the tube. 
Fic. 78. Section near the base of the same antheridial tube, showing 
very thick wall in contrast with the extremely thin film covering the gies 
Fig.77 
Fig. 79. Diagram to show position of preceding sections. 
low the or 
from a section just above the line aa, fig. 78 from one just be 
One intermediate section was not drawn. 
Figs. 80, 80a. Adjacent and approximately longitudi 
opening antheridial tube of the same oogonium, showing t 
and the increased vacuolation of the ooplasm which frequently 
from the primitive wall. 
Fig. 81. Diagram of the distribution of oi] in an oogonium of 
shown in fig. 8o. 
Fig, 82. Antheridial tube discharging sperms, 
primitive wall very young, ooplasm becoming vacuolate, 
slightly oblique so that its base is in an adjacent section. 
Fic. 83. Diagram to show relation of sections pres¢ 
86: fig. 84 was cut from above the line aa, and tangentia 
opening tube ; fig. 85 from between the lines; /7g- 86 from jus 
0, 
nal sections of the 
he primit tive wall 
shrinks away 
the age 
antheridium separset : 
antheridial tube - 
nted in figs: 5¢ e 
al tothe OP 
t below he it 2 
] tube and 
Fic. 84 (see fig. 837). Sperm nuclei leaving the antheridia 
approaching the female nuclei. The tube mF 
Fig. 85 (see fig. 87). Mass of sperms escaping from t ee ee 
be traced to the left as a mass of darkly stained structure 
