108 
of June, showed a slow modification in the leaves, thus actu- 
ally foreshadowing a division of the axis that produced them. 
Division of leaves often goes hand in hand with fasciation of 
stems, as for instance in Menado-coffee, Fraxinus eacelsa, Oeno- 
thera biennis, etc. As to the rest we shall follow as closely as 
possible the original notes of Mr. Smith. The undermost three 
leaves of one series are normal, only a little broader than 
usual, viz. 8.2 cM., but their apex remains acute. . 
The 4th leaf is, indeed, quite as broad as the preceding 
three, but shows a more blunt tip. 
The 5th leaf is to 10 cM. wide and has an indented apex. 
The 6th one is nearly 11 cM. wide with double apex and a 
double elevated ridge in the middle, which becomes single 
lower down. 
The 7th has a width of 15 cM. with a couple of longitudi- 
nal folds, is irregularly four-dented in keeping with four 
parallel nerves. 
In the place of the 8th leaf. we find next to each other two 
leaves, which in February were still too young for closer ob- 
servation. 2 
Before we continue the history of its development, it should 
‘be noted, that on the opposite side of the shoot the leaves 
show the same modification, and also , that in one of the 
axils a peduncle becomes visible, which is double and bears 
numerous flowerbuds. 
If we represent by fig. 25° the state of things as observed 
for the last time in February, c and f designate the two lea- 
ves which followed the 4-dented one. As to the position of 
those which followed inside, hardly anything could be predic- 
ted at the time. But in May a distinct differentiation had 
come about; at present there are four growing points to be 
seen, each of them enclosed by its whorl. That the same 
letters have been used in the two figures (25* and 25°), is 
according to Mr. Smith quite justifiable, because he is almost 
certain that between February and May no leaves have fallen 
off or been intercalated, a view which I am quite prepared 
