Mycosystema 1: 73-106, 1988


A CONSPECITUS OF THE LICHENIZED ASCOMYCETES UMBILICARIACEAE IN CHINA

WEI JIANG-CHUN and JIANG YU-MEI
Systematic Mycologh & Lichenology Laboratory, Institute of Microbiology, Academia Sinica, Beijing


ABSTRACT: Henssen (1974) distinguished five apothecial types: biatorine, lecideine, lecanorine, zeorine, and superlecideoid. Both the biatorine and lecideine types belong to the lecideine type in a broad sense, and the superlecideoid, the lecanorine and zeorine to the lecanorine type in a broad sense. The apothecium structure of some species of Umbilicariaceae has been invewstigated by light microscopy (LM). According to the apothecium structure and the origin of the amphithecium, it is clear that the apothecium of Umbilicarea virginis and U. rigida with a thalline rim around the diac lacking algae in it belong to the lecanorine but not to the lecideine type in a broad sense. In consequence the term "superlecideoid" or "superlecideine" might better be replaced by "sublecanorine" for the apothecium type of the Umbilicariaceae. Fourty six taxa belonging to 37 species occur in China, including 1 species new to science (Umbilicaria pseudocinerascens), and 11 taxa, including 3 varieties, belonging to species new to China are reported. A taxonomic revision of some taxa has also been made, and keys to species are provide.