Octopus or Jewel?

Flipping through reference books while looking for examples of goldwork embroidery, I stumbled onto a page in Flowers, Dragons, & Pine Trees that made me pause, somewhat concerned, and turn the book upside-down. The image, plate 77 on page 234, is credited as an indigo dyed Kasuri Futonji from the 19th or 20th century. From the text,…