types:
Todea,
genus Todea
a genus of delicate ferns belonging to the family Osmundaceae
Schizaea,
genus Schizaea
type genus of the Schizaeaceae cosmopolitan especially in tropics; small leptosporangiate ferns: curly grass fern
Anemia,
genus Anemia
genus of terrestrial or lithophytic ferns having pinnatifid fronds; chiefly of tropical America
Gleichenia,
genus Gleichenia
type genus of Gleicheniaceae: leptosporangiate ferns with sessile sporangia; South Africa to Malaysia and New Zealand
Drynaria,
genus Drynaria
large robust epiphytic ferns of tropical forest and scrub; Africa and Asia and Australia
Ceterach,
genus Ceterach
small genus of Old World ferns; superseded in some classification systems which place plants of this genus in e.g. genera Asplenium and Pleurosorus
Blechnum,
genus Blechnum
in some classification systems placed in family Polypodiaceae; terrestrial ferns of cosmopolitan distribution mainly in southern hemisphere: hard ferns
Doodia,
genus Doodia
in some classification systems placed in family Polypodiaceae; small terrestrial colony-forming ferns of Australasia
Sadleria,
genus Sadleria
low tree ferns with large fronds; in rain forests and on lava flows of Hawaiian Islands
Cyathea,
genus Cyathea
type genus of the Cyatheaceae: tree ferns of the tropical rain forest to temperate woodlands
genus Davallia
Old World tropical fern; in some classification systems placed directly in family Polypodiaceae
Dicksonia,
genus Dicksonia
tree ferns of temperate Australasia having bipinnatifid or tripinnatifid fronds and usually marginal sori; in some classification systems placed in family Cyatheaceae
Cibotium,
genus Cibotium
in some classification systems placed in family Cyatheaceae: ornamental tree ferns with coarse gracefully drooping fronds
Culcita,
genus Culcita
includes some plants usually placed in e.g. genus Dicksonia: terrestrial ferns resembling bracken; tropical America; Malaysia to Australia and Polynesia; southwestern Europe and Atlantic islands
Dryopteris,
genus Dryopteris
large widespread genus of medium-sized terrestrial ferns; in some classification systems placed in Polypodiaceae
Athyrium,
genus Athyrium
temperate and tropical lady ferns; in some classifications placed in family Polypodiaceae or in the genus Asplenium
Cyrtomium,
genus Cyrtomium
small genus of tropical Asiatic greenhouse ferns; in some classifications placed in Polypodiaceae
Deparia,
genus Deparia
classification used for 5 species of terrestrial ferns usually placed in other genera
Onoclea,
genus Onoclea
one species: sensitive fern; in some classifications included in Polypodiaceae
Polystichum,
genus Polystichum
small to medium-sized terrestrial ferns especially holly ferns; in some classification systems placed in Polypodiaceae
genus Woodsia
genus of small to medium-sized usually rock-inhabiting ferns of temperate and cold regions; in some classification systems placed in Polypodiaceae
Bolbitis,
genus Bolbitis
terrestrial or less than normally scandent ferns of tropical regions of northern hemisphere
Adiantum,
genus Adiantum
cosmopolitan genus of ferns: maidenhair ferns; in some classification systems placed in family Polypodiaceae or Adiantaceae
Onychium,
genus Onychium
small terrestrial ferns of Old World tropics and subtropics: clawed ferns; sometimes placed in family Cryptogrammataceae
Pellaea,
genus Pellaea
genus of chiefly small rock-loving ferns; in some classification systems it is placed in the family Polypodiaceae or Adiantaceae
Pityrogramma,
genus Pityrogramma
terrestrial tropical ferns having fronds with powdery yellowish or white undersides; sometimes placed in family Polypodiaceae or Adiantaceae
Pteris,
genus Pteris
large genus of terrestrial ferns of tropics and subtropics; sometimes placed in family Polypodiaceae
Marattia,
genus Marattia
type genus of the Marattiaceae: ferns having the sporangia fused together in two rows
genus Psilophyton
type genus of the Psilophytaceae: genus of small wiry herbaceous Paleozoic plants with underground rhizomes and apical sporangia
Rhynia,
genus Rhynia
type genus of the Rhyniaceae; small leafless dichotomously branching fossil plants with terminal sporangia and smooth branching rhizomes
Horneophyton,
genus Horneophyton
Devonian fossil plant considered one of the earliest forms of vascular land plants; similar to genus Rhynia but smaller
Lycopodium,
genus Lycopodium
type and sole genus of the Lycopodiaceae; erect or creeping evergreen plants often used for Christmas decorations
Isoetes,
genus Isoetes
type and genus of the Isoetaceae and sole extant genus of the order Isoetales
genus Christella
medium to large terrestrial ferns of tropical forests of Old World to Americas
Phegopteris,
genus Phegopteris
beech ferns: genus is variously classified: considered alternative name for genus Dryopteris or included in genus Thelypteris