Abstract:
:The phylogenetic relationships of the lichen genus Placopsis and related genera in the Agyriales were analyzed using molecular data. We obtained a total of 66 new sequences from the nuclear ITS, LSU and the mitochondrial SSU rDNA. Phylogenetic analyses were conducted in a Bayesian and a maximum-parsimony framework. Our analyses show that Placopsis is paraphyletic with members of Orceolina nesting within the genus. A morphological character supporting the Placopsis-Orceolina clade is the non-amyloid ascus. The section Aspiciliopsis as defined by sunken fruiting bodies is not supported, but the type species of Aspiciliopsis is more closely related to Orceolina. This clade shares apothecia with reduced amphithecia as apomorphic character. We suggest resurrecting the generic name Aspiciliopsis. Trapelia is the sister genus to Placopsis and Aspiciliopsis/Orceolina.
journal_name
Mycologiajournal_title
Mycologiaauthors
Schmitt I,Lumbsch HT,Søchting Usubject
Has Abstractpub_date
2003-09-01 00:00:00pages
827-35issue
5eissn
0027-5514issn
1557-2536pii
95/5/827journal_volume
95pub_type
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