摘要
为探讨中国腹枝衣属地衣的物种多样性,进一步明确其分布特征与种类组成,该研究通过野外调查及采集地衣标本,结合形态、解剖、化学等方法,对128份采自中国热带及亚热带地区多个省份的腹枝衣属(Herpothallon)地衣标本进行了分类鉴定,共鉴定出腹枝衣属地衣12种,其中南方腹枝衣[H.australasicum(Elix)Elix&G.Thor]、颗粒腹枝衣(H.granulosum Jagadeesh Ram&G.P.Sinha)、喜马拉雅腹枝衣(H.himalayanum Jagadeesh&G.P.Sinha)、裂芽腹枝衣(H.isidiatum Jagadeesh Ram&G.P.Sinha)和小腹枝衣(H.minutum Jagadeesh)为中国新记录种。并且,对该属所有已知(已报道和本次鉴定)种类进行了综合分析。结果表明:(1)中国已知腹枝衣属地衣14种,占世界已报道种类的29.17%。(2)地理成分有5种类型,即泛热带分布、热带亚洲至热带澳大利亚分布、热带亚洲和热带美洲间断分布、热带亚洲分布和中国特有分布。(3)中国腹枝衣属地衣主要分布在海拔300~2500 m的范围内。(4)生长基物多为树皮,叶生、石生和藓生的物种较少。该研究结果表明,中国南方腹枝衣属地衣的物种多样性较高,这对明确中国该属地衣物种组成以及地衣多样性保护具有重要意义。
In order to investigate the species diversity of Herpothallon in China and further identify its distribution characteristics and species composition,one hundred and twenty-eight specimens of the lichen genus Herpothallon were collected from many provinces of tropical and subtropical regions of China as part of our field investigations.Identification was carried out using morphological,anatomical and chemical methods.The examined specimens were deposited in the Lichen Section of the Botanical Herbarium,Shandong Normal University(SDNU)and the Herbarium of Kunming Institute of Botany,Chinese Academy of Sciences,Kunming,China(KUN).A total of 12 species of Herpothallon are reported,of which H.australasicum(Elix)Elix&G.Thor,H.granulosum Jagadeesh Ram&G.P.Sinha,H.himalayanum Jagadeesh&G.P.Sinha,H.isidiatum Jagadeesh Ram&G.P.Sinha and H.minutum Jagadeesh are new records for China.Hitherto known species of Herpothallon in China were comprehensively analyzed.The results are as follows:(1)There are two additional species of Herpothallon found in China making a total of 14 and accounting for 29.17%of the known Herpothallon species worldwide.(2)These species belong to five types of geographical elements:Pantropical distribution,Tropical Asia to Tropical Australia distribution,Topical Asia and tropical America disjunctive distribution,Tropical Asia distribution,and Endemic to China.(3)Herpothallon species in China grows mainly in the altitude ranging 300 to 2500 m.(4)Most of these species are mainly corticolous with a few being foliicolous,saxicolous and muscicolous in China.The results of initial filed work indicate that this group is distributed sporadically in some mountainous forests in tropical and subtropical regions of the world,and indicate that a higher biodiversity of Herpothallon in South China,changes in substrate and altitude also have important effects on the distribution of Herpothallon in China,which are important for the understanding of the genus composition and the protection of lichen diversity of Herpothal
作者
刘琳琳
左骐嘉
张璐璐
LIU Linlin;ZUO Qijia;ZHANG Lulu(Institute of Environment and Ecology,Shandong Normal University,Jinan 250014,China)
出处
《广西植物》
CAS
CSCD
北大核心
2023年第7期1268-1275,共8页
Guihaia
基金
国家自然科学基金(32170002,31750001)。
