>-.**^:. 



1 



Fig. 142. Lyco})0(liuin claudtiun; section througii an acetolyzed spore wail 

 (x 125,000) exliil)iting tlie fine, granular-lamellar, structure of tlie outer part 

 of the exine. The distinct lamellae shown in this figure are multiples of fine 

 lamellae (thickness 50-60 A). Each of these consists of a single layer of 

 granules. EMG B. M. Afzelius. (From Grana palynologica, 1: 2, 1956.) 



