Drynaria POLYPODIACEAE Drynaria 



with humus-collecting leaves; scales rufous, non-clathrate; margins fimbriate- leaves 

 dimorphous; one always sterile, brown, rigid, sessile, similar to an oak leaf- the 

 other large, green, pinnatifid or pinnate; veins anastomosing and forming rectangular 

 areolae with included veinlets: sori round, exindusiate, numerous. 20 species. (From 

 the Greek, meaning "oak-leaf".) 



1. Drynaria fortunei (Kunze) J. Sm. Fortune's Oak Fern (Ching 4:192). 15-40 cm. 

 tall; fr. IV-XI; sterile leaves 5-8 cm. long. China; locally in An., Che., Ki.* 

 Ku. Tree trunks or rocks. 



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