网脊石耳及网脊平盘石耳分类中微形态学的新证据

NEW MICROMORPHOLOGIC EVIDENCES FOR CLASSIFICATION OF UMBILICARIA DECUSSATA AND U.LYNGEI

虽然网脊石耳与网脊平盘石耳因各自具不同类型子囊盘而彼此易于区别,但是,由于它们的子囊盘极为少见,而且二者的叶状体上表面都具有明显的网状褶皱,因而在实际分类工作中往往难以区分。本文作者用解剖镜和扫描电镜进行对比研究时,为该两种地衣的分类从微形态学方面提供了新的证据。

It is difficult to distinguish between Umbilicaria decussata and U.lyn- gei because of lacking apothecium which is very rare in the two species.Some new micromor- phologic evidences for the classification of the two species obtained by Dissecting microscope and Scanning-electron microscope are given in the present paper.