When asked to write this article, I knew immediately that a scanning electron microscopic
image of Arabidopsis conical petal epidermal cells (Fig. 1), taken more than 15 years ago …

I am immensely grateful to have worked with a group of terrific students and post-docs over
the years, only a few of which have been called out by name in this essay, but all of whom …

My favorite flowering image: Arabidopsis conical petal epidermal cells. - Abstract - Europe
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These results indicate that conical cells are a hallmark of petal epidermal cell identity in
Arabidopsis, and that their differentiation depends on cell-intrinsic mechanisms. Keywords …

Conical cells are specialized cells found on the upper surface of flower petals, protruding
from the petal and covered with nanoridges. They play a crucial role in petal color …