Fia. 53. Pinus Laricio, branch from the top of a thrifty tree. June 1st ; small strobili 

 at extreme top are in stage shown in Fig. 63 ; in the strobili next below, which 

 are a year older, the archcgonium initials are distinguishable (Fig. 64) ; the strobili 

 next below, another year older, have shed their seeds ; to the right is a cluster of 

 staminate strobili, just ready to shed their pollen. 



