The Fern Lover's Companion 207 



V 



THE FILMY FERN FAMILY 

 HYMENOPH ] 'LLA( 'E.E 



The filmy ferns are small, delicate jtlants with mem- 

 branaeeous, finely dissected fronds from slender, creeping 

 rootstocks. Sporangia sessile on a bristle-like receptacle. 

 There are about one hundred species, mostly tropical, onlj' 

 one of which grows as far north as Kentucky. 



Filmy Fern. Trichomancs Boschianum 

 (From Waters' "Feres", Heory Holt & Co.) 



