@ARTICLE{TreeBASE2Ref14774, author = {Oscar Blanco and Ana Crespo and Pradeep Kumar Divakar and J. A. Elix and H. Thorsten Lumbsch}, title = {Molecular phylogeny of parmotremoid lichens (Ascomycota, Parmeliaceae).}, year = {2004}, keywords = {}, doi = {}, url = {}, pmid = {}, journal = {Mycologia}, volume = {}, number = {}, pages = {}, abstract = {Parmotrema is one of the larger genera segregated from Parmelia s. lat. More recently some further genera have been segregated from this large genus based mainly on morphological and chemical features. We have employed molecular data from three genes to revise the generic concept within the parmotremoid lichens. A bayesian analysis of nuclear its, lsu rDNA and mitochondrial SSU rDNA sequences have been performed. The genera Canomaculina, Concamerella, Parmelaria and Rimelia appear nested within Parmotrema. Alternative hypotheses to maintain the independence of canomaculina, concamerella and rimelia are shown to be highly unlikely and are rejected. As a consequence these three genera are reduced to synonymy with parmotrema. An alternative topology segregating parmelaria from parmotrema s. Lat cannot be rejected with the data set at hand. However, we have established that this genus is closely related to Parmotrema rather than to Cetrarioid species as was considered previously. The revised genus Parmotrema includes species which have an upper cortex consisting of a palisade plectenchyma or rarely paraplectectenchyma with vaults, have a pored epicortex, lack pseudocyphellae, have or lack cilia, have laminal, perforate or eperforate apothecia, usually have simple rhizines and filiform, cylindrical, bacilliform or sublageniform conidia. It is closely related to canoparmelia and flavoparmelia but the status of these genera requires further investigation. 20 New combinations are made.} }

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