Taxonomical Studies On The Lichen Genera Pertusaria And Varicellria From China

Taxonomical studies on the lichen genera Pertusaria and Varicellaria from China have been first systematically made in this research.Approximately 1000 specimens collected from China, including Hongkong and Taiwan, are analysed in the text. Detailed descriptions for forty-five pertusariae and one varicellaria from China are given, nine of which are new to China. And the genus Varicellaria is new to China. Distribution maps and distributional data are given for all species and each species is compared with those of similar taxa. The text contains ten tables, fifty-two figures, and keys to the families of Pertusariales, the genera of the Pertsuariaceae and all the Chinese species. And the key to the varicellariae of the world is also given in the text.P. albovelata is treated as the synonym of P. velata by the writer in the text. Whether the species P. setchanica is treated as the synonym of P. monogona or not will need making a further study of the Type Specimen of the former.The main characters (the numbers of spores per ascus and the characters of ascospore wall) at the species level whithin Pertusaria is revealed by the light microscope.There are twenty-one secondary natural products examined by color reaction test and thin-layer chromatography in the text.A preliminary analysis of geographical elements of the lichen genus Pertusaria from China is given in the text. Of the forty-five species, seven(15 %)are endemic to China, two(4%)are Cosmopolitan, nine(20%)are Circumpolar, eight(17%)are Pantropical, seven(15%)are Eurasian, five(9%)are East Asian-North American, seven(15%)are East-Asian and two(4%)are Sino-Himalayan.All the specimens examined by the writer are deposited in the following herbaria: HMAS-L, HKAS, NNU, ABL, CANL, W and SDNU.