rOLYBOTRYA. 149 



I 



GENUS XIV. 



POLYBOTRYA. Humboldt 



A SMALL genus of tropical Ferns, having bi-tripinnate fronds 

 of from two to three feet high. Veins pinnate; venules free. 

 Fertile segments convolute, pinnatifid, or spic^eform, wholly 

 sporangiferous. 



There is no British representative. 



Mr. Smith, in his "Catalogue of Ferns cultivated in the Kew 

 Gardens," enumerates — 



1. — P. osmundacea, Humholdt 8^ Bonpland. Tropical America. 

 2. — P. acuminata. Link. Brazil. 

 3. — P. incisa. Link. Brazil. 



