THYRSOPTERIS. 95 



GENUS IV. 



THYRSOPTERIS. Kunzk. 



Fronds decompound-multifid, with the fertile portion con- 

 tracted and paniculate. Veins pinnate, with free venules, the 

 apices forming soriferous pedicels. A special indusium. 



A solitary species, from Juan Fernandez. 



