152
496
Leaves < 2 cm wide
497
496
Leaves > 2 cm wide
498
497
Leaf rhachis black for
over half of its length
Asplenium
trichomanes L. s.l.
497
Leaf rhachis green
throughout
Asplenium viride
Huds.
498
Leaves tough, dark
green, shiny. Fertile
leaves different from
the sterile ones,
arranged at the centre
of the tuft and more or
less erect
Blechnum spicant
(L.) Roth.
498
Leaves herbaceous,
pale green, not shiny.
Leaves with sporangia
identical to the sterile
ones
499
1...,142,143,144,145,146,147,148,149,150,151 153,154,155,156,157,158,159,160,161,162,...444