Vol. VII, No. 8.] The Bulbils of Dioscorea bulbifera, Linn. 469 
[V.S.] 
one shoot, 3 in the case of one adaxillary half, two in the case 
of another adaxillary half, and 2 in the case of one abaxillary 
Thus there were :— 
20 shoots from adaxillary halves, 
11 shoots from the abaxillary halves. 
The adaxillary halves had put out shoots more freely than 
the abaxillary halves. 
Dividing the bulbils into belts as before, the distribution of 
the shoots may be represented diagrammatically thus :— 
Diagram of halved bulbils, giving the position where the shoots arose, ~ 
adaxillary pole uppermost. 
The reader will notice how freely on the lower half the 
shoots were formed in the belt next to the cut surface. Asa 
matter of fact they were generally very close to the cut. I 
have in it a wound stimulus. But it is evident that the bulbil 
has a tendency to put out new shoots from the adaxillary half, 
just as the terrestrial tuber of Dioscorea bulbifera, when start- 
ing its new year’s growth, similarly puts forth its shoots close 
to the pole whereby it was attached to its parent. 
