Pagina 159 - Flora of the Southern Carnic Alps

159
518 Sori circular 519
519
Pinna and pinnulae
pointed and sickle-
shaped. Indusium
(small membrane
covering the sori)
peltate (fixed at the
centre and umbrella-
like)
520
519
Pinna and pinnulae not
pointed. Indusium
kidney-shaped or
absent
522
520
Leaves wider at the
base. Pinnulae clearly
stalked
Polystichum
setiferum (Forssk.)
Woyn.
520
Leaves wider towards
the middle. Pinnulae
not stalked, widened
and decurrent at the
base
521
521
Leaves rigid,
evergreen. Pinnae
acute at apex. Basal
pinnulae near the
rhachis larger than the
others
Polystichum
aculeatum (L.)
Roth