502 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 12 



PLATE 93 



Fig. 1. Myriogramme Kylinii. The major portion of an old 

 plant, showing young blades toward the lower left and 

 the fimbriate splitting of the old blades between the 

 veins in the center. I. Santa Cruz, x 0.3. 



Fig. 2. Chondria platyclada. A well-developed fertile plant 

 showing the holdfast and flattened upper branching. 

 The small branchlets appear dark because of the pres- 

 ence of tetrasporangia. Costa Rica, x 1.0. 



