GRAPHIS ScnIPTA

Eopyrenula septemseptata new to Sweden and notes on the
occurrence of E. leucoplaca
PER JOHANSSON and JANOLOF HERMANSSON
Johansson, P. & Hermansson, J. 2000: Eopyrenula septemseptata new to
Sweden and notes on the occurrence of E. leucoplaca. Graphis Scripta 12:
19-23. Stockholm. ISSN 0901-7593.
Eopyrenula septemseptata is reported new to Sweden from the island of
Gotland. The species is hitherto known only from Norway and Scotland.
Several new localities for E. leucoplaca, which has been considered to be
rare in Sweden, Ne reported from south to northernmost Sweden. This
species is concluded to be somewhat overlooked in Sweden.
Per Johansson, Department of Conservation Biologt, SLU, P. O. Box 7002,
SE-750 07 Uppsala, Sweden.
Janolof Hermansson, Ludvika Municipality, Unit for Physical Planning, ^SE-
771 82 Ludvika, Sweden.
During a survey of deciduous forests and
wooded meadows on Gotland in 1996 Eopyrenula
leucoplaca was reported from three
localities (Johansson & Croneborg 1997). In
1998 two new records of Eopyrenula were
confirmed as E. septemseptata by Brian
Coppins. A re-examination of the material
first reported uN E. leucoplaca revealed
another two localities of E. septemseptata but
one still refers to E. leucoplaca. Thus, one
locality of E. leucoplaca and four of E.
septemseptata is now known from Gotland. E.
septemseptata was recently described and has
hitherto been reported only from four localities
in all: three in Scotland and one in
Southwest Norway (Coppins et al. 1992).
In Sweden E. leucoplaca is thought to
have declined during the last century and is
treated as Endangered (Thor 1996, Thor &
Arvidsson 1999). Also in other European
countries this species is rare, and it is included
in the Red Lists of Denmark, Poland and
Slovakia (see Thor 1996). In 1997-1999 we
recorded E. leucoplaca at several new localities
in the provinces of Uppland, Sciderman-
land and Dalarna in east-central and middle
Sweden. In the autumn of 1999 it was also
found in Lule Lappmark in northernmost
Sweden.
The aim of this paper is to describe the
ecology of Eopyrenula septemseptata on
Gotland and to discuss the ecology and status
of E. leucoplaca in Sweden.
Eopyrenula septemseptata
E. septemseptata is similar to E. leucoplaca
but is separated by having longer spores with
more septa and by long, -26 Fffi, 6-7 septate
macroconidia. The tnacroconidia of E. leucoplaca
are short, - l0 Ffl, and I -septate. The
irscospores are 2l-38 pm in E. septemseptata
compared to 18-26 pm in E. leucoplaca (Coppins
1992). The best way to separate them is
by the macroconidia which are diagnostic. For
a thorough description of E. septemseptata
and good illustrations of ascospores and
conidia see Coppins et al. (1992).
At two localities on Gotland E. septemseptata
was collected with pycnidia alone, ffid
at two localities it was collected with perithe-