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Meaning of CLASS PSILOPSIDA
WordNet Dictionary
Definition:
[n]
whisk
ferns
;
comprising
the
family
Psilotaceae
or
Psilotatae
:
vascular
plants
with
no
roots
,
partial
if
any
leaf
differentiation
,
and
rudimentary
spore
sacs
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Synonyms:
class Psilotatae
,
Psilopsida
,
Psilotatae
See Also:
class
,
division Pteridophyta
,
order Psilotales
,
Psilotales
,
Pteridophyta
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