Iris Dichotoma in The British Flower Garden by Robert Sweet http://www.biodiversitylibrary.org/item/223789#page/391/mode/1up For more information on historic Iris...
Iris Hungarica in The British Flower Garden by Robert Sweet http://www.biodiversitylibrary.org/item/223789#page/303/mode/1up For more information on historic Iris...
Iris verna in The British Flower Garden by Robert Sweet http://www.biodiversitylibrary.org/item/223789#page/279/mode/1up For more information on historic Irises v...
Iris Hematophylla (now Iris sanguinea) In The British Flower Garden by Robert Sweet http://www.biodiversitylibrary.org/item/224676#page/78/mode/1up For more infor...
1827 29 The British Flower Garden: Iris Tridentata https://www.biodiversitylibrary.org/item/224660#page/310/mode/1up For more information on historic Irises visit...