Index
The three groups
Ferns split by the ground they grow on, and then the horsetails and clubmosses, which are not ferns and are grouped with them anyway.
Ferns
Ferns of wall and rock
Small ferns with their roots in a crack. Three genera, all named in Greek, none of them spelled the way it sounds.
asplenium, cheilanthes, woodsia
28 recorded spellings
Ferns
Ferns of the woodland floor
The large ferns of shade and leaf litter, where the name is usually a description of the plant in Greek.
dryopteris, polypodium, matteuccia
26 recorded spellings
Horsetails,
Horsetails, clubmosses and spikemosses
Not ferns. Older than ferns, with the oldest names in the book and the worst spellings.
equisetum, lycopodium, selaginella
22 recorded spellings