SOME POINTS IN NATURAL HISTORY OP PUNGIA. 363 
tion of buds at the expanded bases of the fixed stalks, but in 
none was there any evidence that the disc which grows on the 
scar at the summit of the stalk is produced by budding. The 
structures of the new disc are, as we have seen, the product of 
the growth of the corresponding structures in the stalk of the 
disc which went before it. 
