(2009): Lichens in Scandinavia known mainly from Norwegian type ...

GRAPHIS SCRIPTA 21 (2009) Lichens mainly known from Norwegian types 10
Lecidea hardangeriana H.Magn.
Type: Norway, Finse, Hardangerjøkelen, alt.
1250–1300 m, 1925, E. Frey 13606 (UPS!
holotype). TLC: miriquidic acid.
The poorly developed specimen shows close
resemblance to Lecidea subplumbea Anzi
according to H. Hertel (pers. comm.), a name
which most probably is a synonym of
Miriquidica griseoatra, a rather variabel
species in the poorly understood arctic-alpine
M. leucophaea complex (see Hertel &
Rambold 1987). We can confirm that the
holotype belongs in Miriquidica as it exhibits
all the characters of that genus as defined by
Hertel & Rambold (1987). More material is
necessary to evaluate the taxonomy at species
level, and we suspect this will prove to fall
within the variation of a more widespread
taxon.
Lecidea ileiformis Fr.
Type: Norway, Dovre, M. N. Blytt (UPS!,
holotype). TLC: Atranorin, psoromic and
stictic acids, zeorin.
This is a lecidioid member of the Lecanoraceae,
and although it has a terricolous habitat, we
regard it as a Calvitimela because of the
internal characters of the apothecia. The spores
(9–12 × 4–7 µm) falls within the variation
given by Haugan & Timdal (1994) for C.
aglaea, but the chemistry differs. At the
moment it is best regarded as a further
chemotype of that species, but this variation is
in need of further studies
Lecidea invenusta H.Magn.
Type: Norway, Granvin, near the top of
Smøreggen, 1947, J. J. Havaas (UPS!,
holotype). TLC: miriquidic acid.
This type is in a rather poor condition and
much eaten by snails. The remaining thallus
contains, however, miriqidic acid and the
specimen certainly belongs in the Miriquidica
leucophaea complex, just as Lecidea
hardangeriana.
Lecidea ludificans H.Magn.
Type: Norway, Oppland, Jotunheimen, at the
top of Galdhøpiggen, alt. 2468 m, 1947, G.
Degelius (UPS!, holotype, Fig. 8). TLC:
norstictic acid.
This is a characteristic species with shining
brown thallus and distinct, thick exciple (to
about 100 µm) on the large, flat apothecia. It is
certainly a member of the Lecidea praenubila
complex, but stands out as most distinct among
the many closely related, variable species (cf.
Hertel 1977).
It has not been recollected recently,
certainly because of the rather inaccessable
locality on the top of Scandinavia’s highest
mountain. It is remarkable that two such rare
species with arctic-alpine relationships are
found there (see also L. altissima above), a fact
which strongly indicates that this high
mountain was an ice-free nunatak, at least for
parts of the quarternary glaciation. Curiously
this has not been one of the peaks included in
the heated debate among botanists and
Figure 8. Lecidea ludificans, part of holotype.
Bar = 2 mm.