Pagina 158 - Flora of the Southern Carnic Alps

158
515
Margin of pinnulae
toothed, lobed or
divided
517
516
Leaves formed on a
creeping rhizome.
Petiole as long as the
leaf blade or more,
without scales
Thelypteris
palustris (Gray)
Schott
516
Leaves forming dense
rosettes. Petiole 1/4-
1/10 as long as the
blade, covered with
brown scales
Thelypteris
limbosperma (All.)
H.P. Fuchs
517
Leaf-stalk erect (stem-
like), 50 cm long or
more. Plant often > 1
m tall
Pteridium
aquilinum (L.)
Kuhn subsp.
aquilinum
517 Leaf-stalk < 50 cm
long. Plant < 1 m tall 518
518 Sori longer than wide Athyrium filix-
femina (L.) Roth