More Spirals

I've mentioned that the Maori found the spiral form of the opening fern -- called the koru -- to be a powerful image, which they used in many forms in their art. And that it has become a kind of national image for New Zealand. Since my earlier post, I've been seeing more and more of these images. Near the Botanic Garden one was embedded in the sidewalk:
This is a particularly old wood carving from pre-European-contact Maori art: