A colleague noticed whitish specks on the leaves of a pepper plant growing on my window ledge. After examining them with the foldscope (in situ, without a slide), they appear as droplets. But of what? Any ideas?
To help give context, here are three different views of what we observed.
PS We tried lifting some of the droplets with tape, to make a slide, but we couldn’t make out the shapes until looking at them directly on the leaf.