-
classification of 2016 (PPG I), it is the only
family in the
order Ophioglossales,
which together with the
Psilotales is
placed in the
subclass Ophioglossidae...
-
Smith et al. (2006). The
subclass contains two orders,
Psilotales and
Ophioglossales,
whose relationship was only
confirmed by
molecular phylogenetic studies...
-
recent phylogenies place them as
basal ferns, as a
sister group to
Ophioglossales. They lack true
roots and
leaves are very reduced, the
stems being the...
-
remained in
their precise placement.
Other classifications have
raised Ophioglossales to the rank of a
fifth class,
separating the
whisk ferns and ophioglossoid...
-
orders Order Psilotales Prant –
whisk ferns; 1
extant family Order Ophioglossales Link –
grape ferns; 1
extant family Subclass Marattiidae Klinge – marattioid...
- genus, the
species is
placed in the
family Ophioglossaceae of the
order Ophioglossales. This
plant is
found in the Neotropics, but in the
United States, it...
-
family Psilotaceae –
Whisk ferns (2 genera,
about 17 species)
Order Ophioglossales,
family Ophioglossaceae – Adder's-tongues (5 genera,
about 80 species)...
- heart-shaped, and grow at the
surface (rather than underground, as in
Ophioglossales). The
order Polypodiales was
first described by Link in 1833. The cir****scription...
-
Psilotaceae comprising Psilotum and Tmesipteris, was
placed with the
order Ophioglossales in the
class Psilotopsida. The
linear sequence of
Christenhusz et al...
-
bifurcate and
trifurcate types. Some ferns, like
members of the
group Ophioglossales have a
unique arrangement -- such as a
single fleshy or
amorphous leaf...
