i8 



GENUS PALLAVICIN1A 



tions in Java and Sumatra, and according to Stephani occurs also in the 

 Pacific Islands, Tahiti and Hawaii. It will probably be found in other 

 parts of Polynesia. 



The plant (Fig. 9) is smaller than P. radiculosa, and there is much 

 more difference in size between the male and female plants. 



Like P. radiculosa, the thallus is prostrate. It usually occurs on the 

 trunks of trees, among other liverworts and mosses, and does not form 

 masses of large size. The plants are very delicate in texture, and the male 

 plants are noticeably smaller than the females or the sterile plants. They 



Fig. 9. 

 A. Male plant, x 8. 



Pallavicinia Levieri. 



B. Female plant, x 4. 



