"Enzyme-secreting cells of date cotyledon." -Stevens, 1916

Date Cotyledon

"Enzyme-secreting cells of date cotyledon." -Stevens, 1916

"Enzyme-secreting cells of...cotyledon of Indian corn." -Stevens, 1916

Indian Corn Cotyledon

"Enzyme-secreting cells of...cotyledon of Indian corn." -Stevens, 1916