一类特殊的植物——地衣     

赵继鼎  徐连旺 《科学大众》1965,(12)

在山野的岩石上,常常点綴着一些黄綠色、灰色、橘紅色、黄色的斑块,那是地衣。地衣的种类很多,目前已知的不下两万多种。在过去很长時間里,人们一直认为,地衣和其他植物一样,是一种单体  相似文献   

中国扁平多孔菌属(Poria)的初步研究   总被引：2，自引：0，他引：2  

赵继鼎 《中国科学院研究生院学报》1964,9(3):299-304

   There are about 18 species of Poria hitherto known from  China.  In  the  present paper 37 species are reported, of which 27 are new records to China.  So at present the genus has a total of about 45 species known to China.  The specimens examined were collected from 9 provinces during the past ten years,  The generic delimitation in the present paper is taken in the sense of Overholts (1942) and Lowe (1946) and identi- fication of species is chiefly based on their works.      All the materials cited are deposited in the Mycological Herbarium of the Institute of Microbiology, Academia Sinica, Peking.    相似文献   

中国梅花衣属的初步研究     

赵继鼎 《中国科学院研究生院学报》1964,9(2):139-166

 Parmelia is a genus of economical importance.   According  what  was  recorded, Meyen & Flotow were the first foreigners to study Chinese lichens in 1843.  Up to the present time 74 species, 24 varieties and 11 forms have been described from China.      The majority of specimens reported in this paper were collected by many Chinese botanists and collectors from 21 provinces from 1928--1962, while a few of them were collected by Licent from 1916 to 1917 and by Poliansky in 1957.      The system of classification adopted here is that held by A. Zahlbruckner in 1926. But in section Hypotrachyna, the two subsections-Myelochroa and Myeloleuca proposed by Asahina are adopted and Parmelia xanthocarpa which has not been properly placed before, is here referred to the subsection Myelochroa.      In the subgenus Hypogymnia the writer discovers that the length of spores of two species are longer than 10μ, especially  Parmelia macrospora reaches  17.5μ long.  So far as the writer knows, the upper limitation of the spore length  recognized  by  many lichenologists has been 10μ in this subgenus.  The spore measurement of this subgenus needs, therefore, to be revised in future.       In this paper 78 species, 14 varieties and 6 forms are presented.  Among them, 5 species, 5 varieties and 1 forms are considered as new and two new combinations have been made.  Out of all these, 31 species, 6 varieties and 2 forms are first recorded from China.  All the materials cited are deposited in the Mycological Herbarium of Instituteof Microbiology, Academia Sinica, Peking.  相似文献