A Study on Leaf Anatomy and Epidermal Micromorphology of Michelia crassipes Law（♀）,M.calcicola C.Y.Wu（♂） and Their F₁ Hybrids

In order to know better about the hereditary and variation of the F₁ hybrid,and provide data to the new ornamental selected from the F₁ hybrids,we study the leaf anatomy and epidermal micromorphology of Michelia crassipes(♀),M.calcicola(♂) and their F₁ hybrids.The parents are very different from each other in the two aspects.The phenotype of the F₁ hybrid shows continuous variation.Fifty-seven point seven percent of the hybrids have higher stoma density than the parents.The dwarf F₁ hybrids have lower stoma density which maybe means good cold resistance.The dwarf F₁ hybrids can be used as materials for the beautiful dwarf cultivars or the more cold resistant ones.