Two members of the Sowerby family (British family of naturalists and artists) did the illustrations for the 12 volumes of the 3rd edition of English Botany or Coloured figures of British plants: James de Carle Sowerby and John Edward Sowerby. The volumes were published between 1858 and 1886 and are available on Internet Archive:
Look a every volume…or just pick one. They all include gorgeous botanical images.
There are two sample images from each volume below.
Now I am looking for other ‘Sowerby’ works….probably will discover some more botanical print books that I haven’t seen previously.