Abstract
A morphologically distinct population (var. almeriensis) of the lichen species Diploschistes ocellatus from southern Spain is examined using morphological and molecular methods. While
the morphological examination revealed some unique features of var. almeriensis, the ITS sequence data did not support a distinction from D. ocellatus s. str. The Kishino-Hasegawa test did not rule out trees distinguishing between the
two morphotypes, although spectral analytical data support an inclusion of var. almeriensis in D. ocellatus. The influence of potentially erronously aligned ambiguous sites is evaluated by analysis
of different alignments. However, all alignments agree in placing all specimens of
D. ocellatus together and, consequently, in the consensus tree D. ocellatus s. lat. forms a monophyletic clade with high bootstrap support.
Key words
Lichens - Ascomycotina - Ostropales -
Diploschistes
- ribosomal DNA - molecular phylogeny - morphology - species
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H. T. Lumbsch
Botanisches Institut Universität Essen
45117 Essen Germany
eMail: lumbsch@uni-essen.de
Section Editor: H. M. Jahns
