136 
POLYPODIACEiE. 
Mr. Babington : it consists of a number of minute, stalked 
glands. The bend, so observable in P. Dryopteris at the point 
of union of its three branches, is much less marked in P. calca- 
reum. The lateral veins of the lobes of the pinnules are undi- 
vided, and the capsules are borne in circular clusters near the 
termination of each, as in both the preceding species. These 
clusters become confluent in the autumn, and form a continuous 
marginal series. 
