COOK—HABITS OF CACAO AND PATASHTE. 615 
branches have shorter petioles than even the smallest leaves of the 
upright shoots. Thus in the shoot represented by plate 46 lateral 
branch leaves with blades 34 to 36 cm. by 20 to 22 cm. had petioles 
only 2.5 cm. long, or only half as long as the smallest leaves of the 
upright shoot. 
In the case of cacao, where the petioles are less unequal, larger 
series of measurements are required to represent the differences. A 
series of leaves from the uprights shown in plate 45 measured (in cen- 
timeters) as follows: 
Petiole length. Blade length. Blade width. 
6.8 33 eee 
8 39 
5. 8 30 8 
5.5 23.5 7 
7 30. 5 10 
7 32 9.8 
6 27.5 10 
8.2 44 13 
5. 5 29 8 
5.5 26 8.5 
5. 5 26. 1 7.8 
For comparison with these the following records were taken from 
the lateral branches shown at the top of plate 45. The uppermost 
branch, which was 35 cm. long, produced leaves as follows, beginning 
at the base: 
Petiole length. Blade length. Blade width. 
2.5 26. 5 8.7 
2. 23.5 8 
3.5 27 9.3 
3.3 33 12 
3. 1 32. 5 11.3 
3 31 12 
2.2 25 10. 2 
1.9 22 8 
The leaves of another lateral branch, the second from the top of 
plate 45, were also measured, and the series is interesting for comparison 
with the preceding, because, although the leaves are very large for a 
lateral branch, the petioles are shorter than on the other less luxuriant 
branch: 
Petiole length. Blade length. Blade width. 
2. 4 31 (about) 12 
2.2 33 11 
1.5 24 9 
1.4 19.5 7 
1.8 26 8.8 
1.9 40.5 12.5 
2 33. 5 12 
2.2 4] 14.3 
1.6 33 12.6 
1.6 29.5 12 
1.3 24.5 9.2 
14697°—16——2 
