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Keys
Vascular plant groups
Club mosses
Ferns
Vegetative key to families
Gymnosperms
Flowering plants
Genera
Families
Hymenophyllum Sm.
Involucre
bivalvate (deeply or to the base) or bivalvate in the upper portion but
obconic
at the base
Hymenophyllum
consider the other alternative
Margin of the
lamina
and the axes not clothed with branched hairs
choose this alternative
reject this alternative
Margin of the
lamina
entire
choose this alternative
reject this alternative
Margin of the
lamina
denticulate