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148 Lindblom, A. E. 1g40. F6rteckning 6fver de pa spetsbergen och Beeren-Island anmirkte vixter. - Bot. Not. 183 9 /1840 ( lichens p. 155-L57 ) . I<strong>ry</strong>nge, B. !g24. Irichens f rom spitsbergen I. - Resultater norske SpitsbergeneksPed. 1 (5) : L-21. ,. 1936. Th; richen genus Rhizocarpon on the west and north coast of Spitsbergen and Nordostlandet (the Notheast Land) -- Svensk bot. Tidskr. 30 : 3 07 -323 - f, 1g3 g . Irichens f rom the west and north coast of spitsbergen and the North-Ea.st Irand collected by numerous expeditions I - Macrolichens . - Skr. norske Vidensk-Akad. mat. -naturv. K1. 5 : 3-135 ' r, 1939. A small contribution to the lichen f lora of the Eastern Svalbard Islands. . Lichens collected by l'tr. olaf Hanssen in 1930 . - Meddr. Norg. svalb. - og Ishavsunders . 44zl.-L2. ,, tg5o. Et bidrag tir spitsbergens lavf Iora. - skr - svalbard Isiravet 79 zL-22. Magnusson, A. H. 1935. The lichen genus Acarospora in Greenland lna Spitsbergen.- Nytt Mag. Naturvid. 752 227-24L' Mattick, F. 19d1. Die vegetation frostgeformter B6den der Arktis, der Alpen und des Riestngebirges . - Fedde, Repertorium Beih - L26: 128-L84. ', 194g. Die Bedeutung der Flechten f fir die Polargebiete - - Polarforschung Bd. 2 , 16 - Jahrg. :98 -!02 ' - -- ,. rr 1950 . Die Flechten spi tzbergens. - Polarf orschung Bd - TT/L949 (1-2): 26L-273. Nowak. J. 1965: The lichens.from Hornsund (s.w.-spitsbergen) coLlected during the pofish Polar Fxpedition in L957 and 1958 ' - Fragrm. f 1or. geobot - 11: 171-190 ' olech, M. 1gg7. Materials to the lichen flora of Hornsund (sw- Spitsbergen) . - Zeszyxy Naukowe uJ Prace botaniczne 15: 155-168 ' poe1t, J. !969 . Bestimmungsschlfissel europiischer F1echtetl. - VerLag ,J. Cramer , Irehre - vinska, H. 1985. Sguamarina poeltii, a new I'ichen species from Novaya Zemlya.- Ann- Bot. Fenn. 22:31-35' Graphis Scripta 22148-155' 1989 Chanqes e in the Lichen Flora on Bomeleklint, S. Sweden, over a 50-Year Period Ulf Arup, Stefan Ekman, Lars Fr6berg, Tommy Knutsson and Jan-Eric Mattsson. Dept. of Systematic Botany, University of Lund, O. Vallgatan 18, S-223 61 Lund, Sweden. Abstract A reinvestgation of the lichen flora on Romeleklint, southem Streden, was caried out from 1ggffig, based on a floristic survey from 1939 by G. Degelius. Almost 60 species were found in the lirst study and 54 species in_the new one. About 20 of the specles from the f irst investigation were not found again and 1T were new. A comparison of pH data from 1949-1970 and 1984-85 showed that extensive acidification has taken place in the region. statistical analyses showed a s(Tnificant decrease in the pH prelerences of the present lichen flora compared wilh the lichen fkrra of 1939. The investigation points to the possibility ol working out scales lor measuring the air quality, based on saxicolous and tenicolous lichen species.
149 The lichen flora on the peak of Romeleklint, SkAne (S. Sweden), was investigated in 1939 by Ove Almborn, Gunnar Degelius and Gustaf Haglund (Degelius 1941 ). A repeated study was begun in the autumn of 1986 (Knutsson 1986), and c-ompleted in 1987-88. The changes in the lichen flora and possible reasons forthese changes are presented. The locality Romeleklint is one of the highest peaks in southern SkAne (1 75 m), and a well-known local viewpoint (Fig. 1 ). A path runs overthe hill, but human wearseems to be rather moderate, except close to the path. The locality is one of the tew places with bare rock in the area and it is exposed to both wind and light. The area below the peak is covered with young, cultivated spruces. ln 1939, there was a SG4o-year-old spruce plantation nearthe soulh side of the locality. Today there are no old spruces close to the south side of the hill. The area has not been grazed since the planting of the spruces in the 1ggo's (Bjerregaard 1988).The bedrockconsistsof greenstone, both old amphiboliteand young hyperitedykes (Hjehqvist 1 934, p. 23). According to Wirth (1972, p. 15) such substrates, poor in SiO. are inhabited by an impoverished lichen flora with fewer true acidophytic species, compared with the lichen flora on SiQ richsubstrates. Fig. 1. The situation of the tocality. Air pollution and acidification in the region The pH values at Romeleklint, determined by us in 1988 are shown in Table 1 (measured with Merck litmus-paper). According to Falkengren-Grerup (1986, 1987) and Falkengren- Grerup et al. (1987) acidification has occurred in SkAne. This conclusion is based on an old investigation carried out from 1949-70 (Linnermark 1960), and a subsequent reinvestigation in 1984-85. The decrease in pH has also occurred at a depth of 70 cm where the influence of the vegetation is negligible (Falkengren-Grerup 1989). Furthermore, during the last 15 years the average pH in the precipitation has been about 4.24.4 (cf. Falkengren-Grerup 1987). The deposition of sulphur and nitrogen oxides are, to a large extent responsible for the decreasing pH. The deposition of SO, and NO, in SkAne is 20-25 kg SO, x 104 m€ x yearl, and 25-30 kg
Page 1 and 2: I, hh rje, r b Vo[- z rrn, y oktolr
Page 3 and 4: OveAlmbornTS6r ove och jag triiffad
Page 5 and 6: 125 Graphis Scripta 22125-127, 1989
Page 7 and 8: 127 previously reported). It was la
Page 9 and 10: 129 chromatography (fLC; Culberson
Page 11 and 12: . 1__--1 I I t \ t f 0 ( t oo qa tt
Page 13 and 14: 133 Huovinen, K., Ahti, T. 6. stenr
Page 15 and 16: Betriiffande avgrd.nsningsproblem h
Page 17 and 18: 137 Mycket talar emellertid ftir at
Page 19 and 20: 139 alpina. Bresinsky & Stangl (197
Page 21 and 22: 141 hopefully stabilized the nomenc
Page 23 and 24: Literature 143 Acharius, E. 1810: L
Page 25 and 26: 145 and threatened by modern forest
Page 27: 147 bryophytes. Sorkapp Land. rare.
Page 31 and 32: 151 are presented in Table 3 and 4.
Page 33 and 34: L. insularis L. lapicida L. orosthe
Page 35 and 36: Beferences 155 Arup, U. & Ekman, S.
Page 37 and 38: 157 snabbt och var Ig48 uppe i unge
Page 39 and 40: afien ej {terfunnen nyfynd Figur 4.
Page 41 and 42: Graphis ScriPta 2: 161, 1989. 161 G
Page 43 and 44: n.11610, pe Fraxinus excelsior. Vii
Page 45 and 46: 165 Museum j-n Giiteborg (Naturhist
Page 47 and 48: 167 Lamb, I. M- 1977 z A' conspectu
Page 49 and 50: I ov , , . Qaloplaca brattiae belon
Page 51 and 52: 171 The species is for the present
Page 53 and 54: 173 forest which appeared to the ve
Page 55 and 56: Graphis Scripta 2: 175, 1 989 175 C

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