There is an index, so that you can look out the flowers you want to read about.

It was no use our looking out flowers, except common ones, such as Harry would be allowed to get bits of out of the big garden to plant in our little gardens, when he became our Honest Root-gatherer.
I looked at the Cowslips again.

I am very fond of them, and so, they say, are nightingales; which is, perhaps, why that nightingale we know lives in Mary's Meadow, for it is full of cowslips.
The Queen had a great many kinds, and there are pictures of most of them.

She had the Common Field Cowslip, the Primrose Cowslip, the Single Green Cowslip, Curled Cowslips, or Galligaskins, Double Cowslips, or Hose-in-Hose, and the Franticke or Foolish Cowslip, or Jackanapes on Horsebacke.
I did not know one of them except the Common Cowslip, but I remembered that Bessy's aunt once told me that she had a double cowslip.

It was the day I was planting common ones in my garden, when our gardener despised them.