Notes. 309 
buds. Most commonly it was the older leaves which were affected, but occasionally 
quite young leaves could be seen bearing a vigorous daughter-rosette (Fig. d). 
The plants collected on the second visit were taken to the warm house at East 
London College and grown in pots, on Sphagnum as before, but in this case were 
covered with bell-jars. In the season following, vegetative propagation was observed 
on these plants also, 
The first indication that a leaf of D. intermedia is about to produce a new plant 
is the appearance of a small green protuberance on the upper surface. When 
sectioned this is found to consist of undifferentiated parenchymatous tissue. In 
slightly later stages the rudiment of the first leaf develops to one side and grows very 
rapidly (Fig. a). The next leaf develops more slowly (Fig. b), and on the opposite 
side. The later leaves develop in succession, but owing to the rapidity with which the 
first leaf usually develops the younger ones often appear as a rosette in the axil of the 
oldest (cf. Fig. c). This disparity between the rates of growth of the first and follow¬ 
ing leaves was not seen in Brosera rotundifolia , the leaves of the daughter-plants in 
this case being of nearly equal size (Fig. d). 
In all cases the new plants arise in close proximity to the main vein of the leaf, 
with which their vascular supply is at first connected. A leaf bearing a very young 
