��������٪�����ɰ���ֲ���о��У�һ���µı�Ƥ������������õ���ʹ�á��ü��������û�ѧ���������ʯҶ��������ʣ�����ֱ��ó�������΢����ɨ��羵( SEM) �Ա�Ƥ������й۲죬����ý�Ƭ����������ͨ��Ƥϸ�������׵��������о�������������ɰ���Ҷ����ͨ��Ƥϸ������������������״��ֲ��Ⱦ����ɼ( Sequoia) ���ơ��˷����˷��˴�ͳ�Ľ�Ƭ������������ģ�������Χ���޵�ȱ�ݣ�Ϊ�����о�ֲ�ﻯʯ֦Ҷ��Ƥ���쿪����һ���ɹ�ѡ�����;����

A new technique for deciphering the epidermal structure of conifers collected from the Middle Jurassic of western Liaoning��China��is introduced�� The technique is stepped in process by removing contamination on surfaces of fossil leaves with chemical treatment at first��applying the optical microscope with large depth of field and SEM for observing the stomatal bands��then using cellulose peel technique in the specimens to observe�� The result clearly shows that the epidermal structure of conifers appears to be similar with of Sequoia in stomatal bands and stomatal apparatus�� The new method overcomes the shortcoming of images unclear remained in the traditional cellulose peel technique��and provides a new referred approach for analyzing the epidermal structure of fossil leaves and leafy shoots��