1914] PETRY—OPHIOGLOSSUM PENDULUM 171 
at 10-25 4, and complete series were easily obtained. The safranin- 
anilin blue stain combination gave the best results. 
a 
at 
eo Bt 
Fic. 4 
-—Ophioglossum pendulum, epiphytic upon Citrus sp-; 
Ograph by Dr. W. J. G. Lanp. 
Tituila, Samoa, 
