Fourteen species of the lichen genus Lecanora are reported from Bailong river valley of Gansu province. Four of them, L. albella, L. flowersiana, L. garovaglii and L. symmicta are reported from China for the first tim...Fourteen species of the lichen genus Lecanora are reported from Bailong river valley of Gansu province. Four of them, L. albella, L. flowersiana, L. garovaglii and L. symmicta are reported from China for the first time. Anatomy, morphology and chemistry descriptions based on our materials for the new records are given.展开更多
Abstract The phylogenetic relationship of lecanoroid lichens is studied using two data sets:1)a 2-locus data set including 251 OTUs representing 150 species,and 2)a 6-locus data set with 82 OTUs representing 53 specie...Abstract The phylogenetic relationship of lecanoroid lichens is studied using two data sets:1)a 2-locus data set including 251 OTUs representing 150 species,and 2)a 6-locus data set with 82 OTUs representing 53 species.The genus Lecanora as currently circumscribed is shown to be highly polyphyletic and several genera,including Adelolecia,Arctopeltis,Bryonora,Carbonea,Frutidella,Lecidella,Miriquidica,Palicella,Protoparmeliopsis,Pyrrhospora,and Rhizoplaca are nested within Lecanora sensu lato.A core group of Lecanora is supported as monophyletic and includes species of the L.carpinea,L.rupicola,and L.subcarnea groups,and a core group of the L.subfusca group.Three monophyletic clades that are well supported in our analyses and well characterized by phenotypical characters are accepted here:1)Myriolecis to accommodate the Lecanora dispersa group and Arctopeltis;2)Protoparmeliopsis for the L.muralis group;and 3)Rhizoplaca is emended to include three placodioid taxa previously classified in Lecanora(L.novomexicana.L.opiniconensis,L.phaedrophthalma),whereas R.aspidophora and R.peltata are excluded from Rhizoplaca.The latter is transferred into Protoparmeliopsis.Lecidella is strongly supported as a monophyletic group.Our studies indicate the presence of additional clades of species currently placed in Lecanora sensu lato that warrant taxonomic recognition but additional data will be necessary before the circumscription of these entities is fully understood.37 new combinations are proposed into the genera Myriolecis(30),Protoparmeliopsis(2),and Rhizoplaca(5).展开更多
A new method for analysis of lichen triterpenoids was established using high performance liquid chromatography with the combination of a differential refractive index detector(RID) and a photodiode array detector(PDA)...A new method for analysis of lichen triterpenoids was established using high performance liquid chromatography with the combination of a differential refractive index detector(RID) and a photodiode array detector(PDA).It is proved that this method was convenient to detect and identify aromatic and aliphatic lichen substances;it enabled quantitative analysis of substances having no or less absorption of ultraviolet rays such as triterpenoids.In addition,they can be measured in high accuracy compared with the TLC method.展开更多
基金Supported by the National Natural Science Foundation of China （No. 30470003） and the Natural Science Foundation of Shandong Province （No.Y2004D03）
文摘Fourteen species of the lichen genus Lecanora are reported from Bailong river valley of Gansu province. Four of them, L. albella, L. flowersiana, L. garovaglii and L. symmicta are reported from China for the first time. Anatomy, morphology and chemistry descriptions based on our materials for the new records are given.
基金supported by the National Natural Science Foundation of China(31170187,31570017)supported by grant CTM2012-38222-C02-02 from the Spanish Ministry of Economy and Competitiveness.
文摘Abstract The phylogenetic relationship of lecanoroid lichens is studied using two data sets:1)a 2-locus data set including 251 OTUs representing 150 species,and 2)a 6-locus data set with 82 OTUs representing 53 species.The genus Lecanora as currently circumscribed is shown to be highly polyphyletic and several genera,including Adelolecia,Arctopeltis,Bryonora,Carbonea,Frutidella,Lecidella,Miriquidica,Palicella,Protoparmeliopsis,Pyrrhospora,and Rhizoplaca are nested within Lecanora sensu lato.A core group of Lecanora is supported as monophyletic and includes species of the L.carpinea,L.rupicola,and L.subcarnea groups,and a core group of the L.subfusca group.Three monophyletic clades that are well supported in our analyses and well characterized by phenotypical characters are accepted here:1)Myriolecis to accommodate the Lecanora dispersa group and Arctopeltis;2)Protoparmeliopsis for the L.muralis group;and 3)Rhizoplaca is emended to include three placodioid taxa previously classified in Lecanora(L.novomexicana.L.opiniconensis,L.phaedrophthalma),whereas R.aspidophora and R.peltata are excluded from Rhizoplaca.The latter is transferred into Protoparmeliopsis.Lecidella is strongly supported as a monophyletic group.Our studies indicate the presence of additional clades of species currently placed in Lecanora sensu lato that warrant taxonomic recognition but additional data will be necessary before the circumscription of these entities is fully understood.37 new combinations are proposed into the genera Myriolecis(30),Protoparmeliopsis(2),and Rhizoplaca(5).
文摘A new method for analysis of lichen triterpenoids was established using high performance liquid chromatography with the combination of a differential refractive index detector(RID) and a photodiode array detector(PDA).It is proved that this method was convenient to detect and identify aromatic and aliphatic lichen substances;it enabled quantitative analysis of substances having no or less absorption of ultraviolet rays such as triterpenoids.In addition,they can be measured in high accuracy compared with the TLC method.
