(1) pea enation virus(2) For late spring plantings of peas, use an enation virus-resistant variety that will remain productive when weather warms.(3) The current hypothesis for the origin of microphylls is called the enation theory, based on the idea that microphylls evolved through the vascularization of enations on the plant.(4) They probably developed leaves both by enations and by planation of a branching system.(5) The erect portion of the stem bears paired enations, outgrowths which look like miniature leaves, but unlike true leaves, the enations have no vascular tissue.(6) Branches are covered in fine enations or hairs.