Pagina 155 - Flora of the Southern Carnic Alps

155
505 Leaves > 25 cm long 515
506
Lower leaf segments
(pinnae) clearly turned
backwards
Phegopteris
connectilis
(Michx.) Watt
506 Lower leaf segments
not turned backwards 507
507 Sori much longer than
wide 508
507 Sori circular 511
508 Leaf-stalk dark, at
least in the lower half 509
508 Leaf-stalk entirely
green 510
509
Leaves doubly
pinnate, divided into
oval or lanceolate
leaflets, with the
lowest pinnae not very
distant from the others
Asplenium
adiantum-nigrum
L. subsp.
adiantum-nigrum