粤北石灰岩地区的藓类植物

MOSSES IN LIMESTONE AREA IN NORTHERN GUANGDONG

摘要:

粤北石灰岩地区共有藓类植物40科，110属，196种（含3亚种、6变种），其中含广东新记录3科21属，60种，中国新记录变种1个，本地区的区系地理成分中，热带、亚热带成分占最主要地位（41．3％），东亚成分略少（33．7％），还含有14．7％的北温带成分及4．3％的中国特有成分。

Abstract:

This paper is based on a study of about 1000 specimens of mosses collected by Mr. Zhang Li and the authors in limestone area of northern Guangdong in 1990. The mossflora in this region consists of 187 species, 3 subspecies and 6 varieties in 110 genera and 40 families, among them Homalothecium laevisetum var. triplecatum is new to China, and Sinskea flammea ssp. ochracea and S. flammea ssp. rufifolioides are new to mainland of China. In this mossflora tropical and subtropical elements amount to 41.3%, East Asiatic elements comprise 33.7%, and North temperate elements and elements endemic to China represent 14.7% and 3.5% , respectively．It is very interesting that 8 genera endemic to East Asia have been found in this region．A name list of bryophytes is given．