422 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 3 



PLATE 62 



Fig. 1. Lithophyllutn Hancnckii, photomicrograph of a tetraspor- 

 angial conceptacle in a portion of Dawson 619a, x 120. 



Fig. 2. Dfrinatolithon ^'eleroae, photonnicrograph of a section of a 

 tetrasporic conceptacle from the type material, Dawson 550, 

 X 220. 



