Am.  Jour.  Pharm. 
May,  19 17. 
}    Germination  of  Belladonna  Seed. 
211 
One  of  the  interesting  points  brought  out  by  this  table  is  the 
germination  of  the  seed  from  the  seed  from  plant  No.  3.  This  seed 
in  Lot  B  showed  the  greatest  germination  of  any  up  to  January  23. 
Seed  from  the  same  plant  in  Lot  C  showed  the  least  germination 
during  that  period.  During  the  remainder  of  the  time  the  germina- 
tion of  this  seed  decreased  rapidly  in  Lot  B  and  increased  in  Lot  C. 
No  explanation  for  this  peculiar  behavior  of  the  seed  has  become 
apparent. 
In  Table  III  the  total  germination  at  the  end  of  each  period  is 
given. 
Table  III. 
Table  Showing  the  Total  Number  of  Seed  Germinated  at  the  End  of  Each 
Period  of  Observation. 
Lot. 
No.  of 
Total  number  of  seed  germinated  at  the  end  of  each  period. 
individual 
plant. 
Jan.  9. 
Jan. 13. 
Jan.  18. 
Jan.  23. 
Jan.  30. 
Feb.  6. 
Feb. 15. 
Feb. 24 
Mar.  7. 
A  .... 
I 
2 
7 
10 
16 
39 
63 
147 
201 
213 
2 
9 
32 
57 
85 
147 
191 
234 
249 
253 
3 
6 
16 
27 
44 
74 
86 
131 
153 
162 
4 
11 
26 
41 
60 
97 
150 
206 
237 
240 
B. 
1 
0 
3 
9 
19 
46 
68 
106 
120 
125 
1 
3 
5 
11 
27 
48 
112 
156 
164 
3 
23 
136 
163 
181 
192 
204 
205 
205 
4 
0 
0 
3 
19 
54 
107 
185 
223 
228 
C. 
r 
14 
38 
52 
63 
85 
103 
126 
171 
176 
2 
12 
36 
47 
61 
89 
98 
Il8 
156 
l6l 
3 
4 
5 
15 
34 
59 
98 
109 
34 
2 
6 
9 
22 
55 
80 
138 
214 
220 
While  the  preceding  table  shows  the  actual  number  of  seed  germi- 
nated, Table  IV  following  shows  the  total  percentages  germinated. 
The  data  in  Table  IV  is  presented  graphically  in  Figs.  1  to  4.  A 
study  of  these  charts  leads  to  the  conclusion  that  the  seed  from  Lot 
A  showed  the  best  germination,  both  from  the  standpoint  of  total 
percentage  of  germination  obtained  and  acceleration  of  the  germi- 
nation. Thus,  on  January  30  the  average  percentage  germinated  in 
Lot  A  was  29.8  per  cent.,  in  Lot  B  25.6  per  cent.,  and  in  Lot  C  20.3 
per  cent.,  and  after  this  date  Lot  A  continued  to  show  the  greatest 
total  germination.  Seed  from  Lot  C  seemed  to  be  inferior  to  either 
of  the  other  lots  but  especially  inferior  to  that  from  Lot  A. 
It  is  a  significant  fact  that  in  point  of  vitality  the  seeds  from  the 
various  lots  rank  the  same  as  they  do  regarding  color  and  weight. 
