Leonhart Fuchs, De historia stirpium (Lyon, 1551)
Herbals were sometimes hand colored in select copies. They might be issued both in large folios and in small, economical, hand-sized formats like this one. The small format was useful beyond the study and library, in the hospital, field and garden.
Consider how plant depictions are adapted to this small format, compared with the plant illustration in the large 1542 edition.