- simple, pinnate, or more compound;
sporangia born in
linear non-marginal,
exindusiate sori or
sometimes in
marginal sori;
several genera, including: Anogramma...
-
surface of the lamina) in a few lineages;
usually indusiate, or
sometimes exindusiate. Indusia, when present, are round-reniform or peltate.
Sporangia have...
-
bases of the lobes.
Sporangia solititary,
scattered along the veins,
exindusiate but
protected by the
continuous reflexed margin of the lamina, large...
-
subterranean gametophyte. The sori are
abaxial but not
marginal and
carry 5–15
exindusiate round sporangia each.
These have a transverse-oblique
annulus and contain...
-
infertile lobes.
Fertile lobes have the sori continuous,
linear and
exindusiate (without an indusium) but
protected by
reflexed leaf margins.
Young fronds...
