THE STUDIED OF BLADE OF ADENOPHORA POTANINII IN DIFFERENT ALTITUDE Sporogenesis and Gametogenesis of Endangered Adenophora lobophylla Hong (Campanulaceae) Study on Population Life Table and Survivorship Curves of Adenophora lobophylla, an Endangered Species, Compared with A. potaninii, a Widespread Species A COMPARATIVE STUDY ON STOMATAL BEHAVIOR OF ADENOPHORA LOBOPHYLLA AND A. POTANINII UNDER DIFFERENT SHADE TREATMENT