10.5061/DRYAD.QV42J11B
Lendemer, James C.
University of Zurich
Hodkinson, Brendan P.
Duke University
Data from: A new perspective on Punctelia subrudecta (Parmeliaceae) in
North America: previously rejected morphological characters corroborate
molecular phylogenetic evidence and provide insight into an old problem
Dryad
dataset
2012
Punctelia borreri
Punctelia jeckeri
macrolichens
Modern
Punctelia subrudecta
Punctelia perreticulata
Species concepts
Punctelia caseana
2012-01-04T17:26:48Z
2012-01-04T17:26:48Z
en
https://doi.org/10.1017/S0024282910000101
65739 bytes
1
CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
In North America the names Punctelia subrudecta and P. perreticulata have
variously been applied to corticolous sorediate Punctelia specimens with
lecanoric acid and a pale lower surface. ITS1, 5.8S, and ITS2 sequence
data were generated from a geographically and morphologically broad
sampling from within these specimens, and a molecular phylogeny was
inferred. A combined approach using morphology, geography, and phylogeny
was used to circumscribe three distinct species in North America, one of
which is described as new to science (P. caseana), one of which is finally
confirmed for the continent (P. jeckeri), and one whose original
circumscription is validated (P. perreticulata). The phylogeny inferred
from ITS sequence data supports the taxonomic value of the following
morphological characters for distinguishing species in this group:
presence/absence of pruina; conidium type and length (although see
discussion of P. jeckeri), and presence/absence of scrobiculae on the
upper surface. A key to the North American species of Punctelia is
provided.
Lendemer_and_Hodkinson_Punctelia_ITSNexus file of aligned DNA sequences
used for molecular phylogenetic analyses carried out for the study.
North America