107 



Osmunda, L. cont. 



0. claytoniana, L. North America, Himalaya. 

 O. inlerrupta, Michx. See claytoniana. 

 O.japonica, Thunb. See regalis. 

 0. javanica, SI. From Kamschatka to Java. 



0. *regalis, L. North and South temp, regions. Hook. 



Brit. Ferns, t. 45. 

 var. japonica, Milde. Japan. 

 O. spectabilis, Willd. See regalis. 



Paesia. See Pteris. 

 Paragramma. See Polypodium. 

 Parkeria. See Ceratopteris. 



Pellaea, Link. 

 P. adiantifolia, Hort. See hastata. 



P. atropurpurea, Link. North and Central America. 

 Lowe, Ferns, iii. t. 30. 



P. cordata, J. Sm. Mexico, Western South America. 

 AUosorus cordatus, Presl ; Bot. Mag. t. 4698. 



var. flexuosa, Baker. Western South America. 

 AUosorus Jiexuosus, Kaulf. ; Bot. Mag. t. 4762. 



P. densa, Hook. North America. 



P. falcata, Fee. Tropical Asia and Australia. 



P. geraniifolia, Fee. Tropics. Pteris geraniifolia, 

 Raddi ; Hook. Ic. PI. t. 915. 



P. gracilis, Hook. Northern Asia, North America. 



P. hastata, Link. Tropical and South Africa. Hook. 

 Fil. Exot. t. 50. 



* For garden varieties, sec. p. 179. 



