--->
Tessellation for the cauliflower (zz+0.25)
--->
Invariant leaves accociated with repelling and parabolic fixed points
--->
<<<
Tessellation for zz-0.75, having parabolic fixed point with 2 petals
--->
= 
<---
Periodic leaves degenerates and merges into an invariant leaf
*2-->
*2 <--
Tessellation for the chubby rabbit, having parabolic fixed point with 3 petals
--->
<---
Degenerating arc systems
--->
