6o3 
the Stellatae, with special reference to Galium. 
further instances of double stipules. One of the specimens has at the second 
node from the base of the stem two true leaves and two leaf-like stipules, 
one of which is provided with two midribs, the apex being at the same time 
fairly deeply two-lobed (Fig. 33). The whorl at the third node is six- 
membered, that at the fourth node eight-membered, and the ninth (the last) 
node has seven ‘ leaves Another specimen presents a feature of con- 
siderable interest. At the uppermost node on the stem, from which three 
peduncles spring, there are seven ‘ leaves ’, two being true leaves, each 
of which bears a branch in the axil, and the rest being leaf-like stipules. 
On one side of the stem, between the opposite true leaves, there are present 
three stipules. On the other side there are only two, but one of these is of 
a double nature, being furnished with two midribs and a shallowly indented 
apex (Fig. 34). 
The points of interest are in the first place that the double stipule 
corresponds with two of the three stipules on the opposite side of the stem, 
and clearly indicates, as in the case of Didymaea mexicana (vide Ann. of 
Bot., vol. xxx, pp. 203-4), the probable mode by which the stipules at 
a node increase in number. In the second place, it affords the only 
instance, so far as the writer has observed, of the occurrence of a leaf-like 
double stipule in a whorl of more than five members. 
It has also been found that in Galium paradoxum five-membered 
whorls with three leaf-like stipules are seldom produced. 
