1 6 EDMUND W. SINNOTT AND IRVING W. BAILEY 
tropics and the temperate regions, although unilacunar species are 
somewhat more common in the former than in the latter. Among 
shrubs, however, we may note a much higher percentage of multi- 
lacunar species in temperate areas than in arid or tropical ones, running 
Table V 
Species 
Trees 
Shrubs 
Herbs 
Multi. 
Uni. 
Multi. 
Uni. 
Multi. 
Uni. 
/o 
/o 
/o 
/o 
/o 
/o 
TVT 1- TT • J C 
2,8l I 
«5 
15 
69 
31 
58 
42 
1405 
90 
84 
16 
62 
38 
1,231 
94 
81 
19 
50 
44 
1 ,120 
97 
3 
19 
54 
46 
95 
5 
70 
30 
58 
42 
1,735 
90 
4 
87 
13 
57 
43 
3,901 
91 
9 
43 
57 
53 
47 
3,069 
92 
07 
33 
DO 
40 
9,848 
71 
29 
59 
41 
03 
37 
2,570 
84. 
16 
KA 
0^ 
a6 
68 
Egypt 
1,138 
83 
17 
53 
47 
63 
37 
76 
24 
67 
33 
Japan 
542 
87 
13 
63 
37 
1,405 
84 
16 
66 
34 
67 
33 
Chili 
2,160 
76 
24 
67 
33 
67 
33 
974 
72 
28 
47 
53 
61 
39 
681 
69 
31 
41 
59 
52 
48 
987 
76 
24 
61 
39 
56 
44 
Gangetic Plain 
996 
60 
40 
60 
40 
54 
46 
466 
56 
44 
50 
50 
47 
53 
Australia (extratropical) 
5,874 
51 
49 
67 
33 
63 
37 
7,284 
60 
40 
58 
42 
45 
55 
Amazon Valley 
2,174 
57 
43 
30 
70 
38 
62 
British West Indies 
2,191 
46 
54 
46 
54 
50 
50 
1,496 
66 
34 
54 
46 
58 
42 
10,520 
54 
46 
32 
68 
39 
61 
Mauritius 
555 
45 
55 
42 
58 
56 
44 
1,752 
50 
50 
43 
57 
36 
64 
996 
61 
39 
50 
50 
50 
50 
1,229 
50 
50 
48 
52 
46 
54 
6,246 
49 
51 
40 
60 
44 
56 
Malay Peninsula 
3,049 
49 
51 
32 
68 
26 
74 
Manila 
332 
66 
34 
47 
53 
44 
56 
508 
50 
50 
41 
59 
5^ 
49 
from 70 per cent or 80 per cent in the former to 30 per cent or 40 per 
cent in the latter. Trees, however, which are probably the most 
ancient type of all, show the widest extremes and among them the 
relative proportion of the two nodal types is very closely correlated 
with climate. In the great land area of the north temperate zone 
