Last Updated：2025/12/31
Sentence
As
the
name
suggests,
it
is
possible
to
trace
spiral
curves
in
the
pattern.
These
curves
are
called
parastichies.
The
parastichies
winding
in
the
same
direction
around
the
stem
with
the
same
pitch
constitute
one
family
of
parastichies,
and
two
easily
perceived
sets
of
parastichies
winding
in
opposite
direction
are
called
a
parastichy
pair.
Quizzes for review
As the name suggests, it is possible to trace spiral curves in the pattern. These curves are called parastichies. The parastichies winding in the same direction around the stem with the same pitch constitute one family of parastichies, and two easily perceived sets of parastichies winding in opposite direction are called a parastichy pair.
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