452 ALLAN HANCOCK PACIFIC EXPEDITION'S VOL. 12 



PLATE 68 



Fig. 1. Prionitis (jalapaqcnsis. One axis with a primary fork 

 and many lateral branchlets, showing the characteristic 

 strong]}' crisped margins. I. Santa Maria, x 0.7. 



Fig. 2. Prionitis alJicmarlensis. One plant \vith several axes 

 showing the branching character and shape of the seg- 

 ments. I. Isabela. x 0.4. 



