| Yimeng Mountains is the two branches of the Tai Yi mountains,which refers to the geographical area of Yishan Mountain and Mengshan Mountain as geological coordinates.The mountains,hills and plains of the area each account for about 1/3,and Daigu landform which is formed by strong crust cutting and lifting.The rock types in this area are mainly limestone and granite,and the diversity of vegetation types is high.It belongs to the typical warm temperate deciduous broad-leaved forest with pine and cypress,oak and other woody vegetation.Yimeng Mountain Area is located in the warm temperate monsoon climate zone,with warm and humid climate and distinct seasons,which breeds abundant lichen species.In this study,more than 300 lichens specimens from Yimeng Mountain Area were collected through laboratory specimens and field collections.These specimens were kept in the Herbarium of Shandong Normal University.In this paper,the phenotypic characteristics,anatomical characteristics,chemistry,substrates and other aspects of their comprehensive classification were studied.66 species belonging to 43 genera,20 families,10 orders and three classes.In this thesis,three of them are new records to China: Lecania inundata,Verrucaria calciseda and Sarcogyne privigna;25of them are new records to Shandong: Acarospora strigata,Amandinea punctata,Bacidia egenula,Buellia badia,B.sequax,B.spuria,B.stellulata,Endocarpon pusillum,Gyalolechia flavorubescens,G.flavovirescens,Heppia conchiloba,Lecania rabenhorstii,Lecanora oreinoides,Lecidella stigmatea,Lepraria lobificans,Lobothallia alphoplaca,Peltula obscurans,Phaeophyscia ciliata,P.orbicularis,Protopannaria pezizoides,Psora decipiens,Rhizocarpon geographicum,Sarcogyne regularis,Toninia tristis and Verrucaria nigrescens.The 66 species reported in this paper are introduced from morphology,anatomy,chemistry and basic substances,and compared with similar species.This paper provides a key to lichen species classification in Yimeng Mountain Area and the external morphology and anatomical photographs of the newly recorded species.In this paper,we re-examined the samples of lichen species reported by predecessors in Yimeng Mountain Area and revised them.A total of 12 lichen species were found to be misreported.These lichen species include: Candelaria concolor,Cladonia ramulosa,Drinaria applanata,Flavoparmelia ceperata,Parmelia crenulata,P.hypotry-podes,Parmotrema reticulatum,P.tinctorum,Pertusaria alpina,P.commutata,P.multipuncta and Xanthoria mandschurica.In this paper,they are revised as follows: Gyalolechia flavorubescens,Cladonia pyxidata,Diploschistes actinostomus,Myelochroa subaurulenta,Punctelia rudecta,Xanthoparmelia tinctina,X.mexicana,Punctelia borreri,Circinaria caesiocinerea,Lecanora campestris,Buellia badia and Xanthoria elegans.Based on the previous studies,this study further enriched the genus composition of lichens in Yimeng Mountain Area,described the morphological and anatomical characteristics of lichens.It provides basic data for species diversity and systemicity in Chinese limestone areas and also provides reference materials for taxonomic studies of Chinese lichens. |
