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Graphis Scripta 2z 107-113t 1g8g.
TTTE LICIIE!{ FLORA ON I'I,MUS IN A
INTRODUCTION TO TTIE LITERATTTRE
Steen N. Christensen, Institut
hagen, Oster Farimagsgade 2 D,
NORTTI GREEK I.IrcU!*TAIN VILI.AGE WITTI Al{
ON GREEK LICHENS.
for Sporeplanter, University of Copen-
DK-13 5 3 Copenhagen K, Denmark.
Abstract: The lichen fIora, which cormodate species of tvro communities,
viz.: Lobalion and xanthorion, total 31 taxa of which 3 are
nebr to the Greek Mainland (Lecanora chlarotera ssp. rneridionalis,
Pyrrhospora quernea, and Xanthoria fall-ax) and the }ast nentioned
is new to the r"rhole of Greece. 53 references are given to the
literature on creek lichens.
IntroductLon.
The lichen flora of the creek rnaj.nland is not very well" known. Most
of the pulrlished papers give only scant floristic notes, dealing mainl,y
$rith the geographical distribution of the taxa, rather than their
substrate and habitat preferences, or the comnunities which they are
part of: Bory de Saint-Vincent (1832, non vide), Chaubard & Bory de
Saint-vincent (1838), Hepp (in Unqer 1862), steiner (1893, 1898, 1915,
1919a et in Halacsy 1894a, 1894b, 1894c, 1894d), Kerner (1895), Zahlbluchner
(190?), Itarmand & Maire (1909), Servit (1932, 1935), Diapoulis
(1936b), Szatala (1940, 1941a, 1941b, 1959), RiisAnen (1944), Politis
(1953), Diannelidis (1955), Geissler l!911), and Ried1 (19?8). Lichen
parasites yrere reported by steiner (1893, 1898 et in Halecsy op. cit.)
and by Keissler (in Rechinger 1914). (The some tines cited Steiner in
Fritsch (1900) is disregarded as the sampllng sites are located in
Turkey (cf,. Verseghy 1982)). Likewise are only a limited number of
papers with mainly floristic notes published frorn Crete (Zahlbruckner
1905, Steiner !9!1, Szatal"a in Rechinger 1943, 1951, Kleinig 1966,
Rond.on 1959), frorn the fonian Islands {Hepp in Unger 1862, K6rber 1858.
Arnold 1887, Steiner in Rechinger 1915), and from the Aegean (Forsyth
Major & Barbey 1894, 1895, 1896, 1897, Stefani et al. 1895, Steiner
1919b, Cengia-Sanbo L924, 1927, Servit 1933, Szatala in Rechinger 1943).
Epiphytic Iichens on Abies cephalonica were published in WiLnanns &
Phitos (1950), and Degelius (1955) in his survey of the Collerna flora of
the Greek mainland gave species lists frorn Abies cephalonica in two
locaLities. The lichens of different substrata on Peloponnes hrele surnmarized
by Rond.on (1970). waLter (1975) arranged her collected tichens
according to plant comnunities, and Hayek (1928) published short ]ists
of lichens frorn severaL plant cordluniti.es on Mt. Olympos, as did
Diapulis (1936b). wilmanns (1959) surveyed t$ro epiphytic comnunities in
Northeastern creece and zo1ler et al. (1977) incLuded lichens in their
sociological work on forests types in N Gleece.
This study presents the lichen fl.ora on Ulmus tlees in a rnountain
village in northern Pindos, Greece.
The locality.
The Lichen flora was investigated on ULmus trees j.n the vresEern
outskirts of the village Perivolion. The vi11a9e is situated in tllacedonia,
in nomos (= prov.) and eparchia (= nunicipal.ity) crevenon, in
northern Pindos, Lingos range, about 6 km NNE of !tt. Avgo, about 25 kn