12th century. De viribus herbarum. Liber Omad.
Digby 13 (VII). Bodleian.
(It is not known who Omad was.)
12th century. Macer de virtutibus herbarum.
Digby 4 (XI). Bodleian.
(The last folio is in thirteenth-century hand.)
12th century. Macer de virtutibus herbarum.
Library of Lincoln Cathedral.
12th century. Herbarium Apuleius.
Library of Eton College.