348 IXSECT ARCHITECTURE. 



the fruit of ttie tree in miniature, but with this difference, 

 that the fruit terminates in a point, whereas the pseudo- 

 gall is nearly globular. Its colour also, instead of being 

 green, is reddish; but it exhibits the tiled scales of the 

 fruit cone. 



Pseudo-gall produced by J2)his Pini on the Scotch fir, drawn from a specimen. 



We have mentioned this the more willingly that it seems 

 to confirm the theory which we have hazarded respecting 

 the formation of the bedeguar of the rose and other true 

 galls — by which we ascribed to the sap, diverted from its 

 natural course by insects, a tendency to form leaves, &c., 

 like those of the plant from which it is made to exude. 



