Underwood: American ferns 



597 



Young forms collected with the last number seem to indicate 

 a widely different juvenile condition from that which obtains in the 





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Normal pinnae of American species of Stenochlaena : 7, 8, 5. vestita. 9, 10, S. 

 Fendleri. I£, 12, 5. Maxoni. 13, 14, S. jamaicensis. All the figures natural size. 



common Windward Island species (5. sorbifolia) from which this 

 is a segregation. In the last-named species the juvenile form is 



