- ferns, adder's-tongues and moonworts. It is
equivalent to the
class Psilotopsida in
previous treatments,
including Smith et al. (2006). The
subclass contains...
-
Equisetopsida (Sphenopsida) – 1 order,
Equisetales (Horsetails) ~ 15
species Psilotopsida – 2
orders (whisk
ferns and
ophioglossoid ferns) ~92
species Marattiopsida...
- or Equisetopsida,
horsetails and scouring-rushes (fern-allies)
class Psilotopsida,
whisk ferns (fern-allies)
class Filices or Pteropsida, true
ferns (including...
- a
monophyletic clade, are
formally only
considered as four
classes (
Psilotopsida; Equisetopsida; Marattiopsida; Polypodiopsida), 11
orders and 37 families...
- †Cladoxylopsida
Equisetopsida (horsetails)
Marattiopsida Psilotopsida (whisk
ferns and adders'-tongues)
Pteridopsida (true ferns)...
- The
flora of
Qatar includes more than 300
species of wild plants.
Qatar occupies a
small desert peninsula that is
around 80 km (50 miles) from east to...
- and Tmesipteris, was
placed with the
order Ophioglossales in the
class Psilotopsida. The
linear sequence of
Christenhusz et al. (2011),
intended for compatibility...
-
among three classes. Each
family is ****igned to its own order.
class Psilotopsida Order Psilotales,
family Psilotaceae –
Whisk ferns (2 genera,
about 17...
- Equisetopsida,
Psilotopsida, and Marattiopsida, but
recent studies have
shown that
Equisetopsida is most
likely sister to
Psilotopsida.
There has been...
- use. The
class should not be
confused with the
current use of the name
Psilotopsida,
which refers to a
class of
living ferns,
containing only Psilotaceae...
