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THE ANATOMIC OBSERVATION OF THE DEVELOPMENT OF FEMALE FLOWER MEGASPOREGENSIS AND THE DEVELOPMENT OF EMBRYO OF BETULA PLATYHYLLA

THE ANATOMIC OBSERVATION OF THE DEVELOPMENT OF FEMALE FLOWER MEGASPOREGENSIS AND THE DEVELOPMENT OF EMBRYO OF BETULA PLATYHYLLA

白桦雌花发育、大孢子发生及胚胎发育的解剖学观察