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Punctelia ulophylla new to Norway YNGVAR GAUSLAA Gauslaa, Y. 2000: Punctelia ulophylla new to Norway. Graphis Scripta 12: 12-14. Stockholm. ISSN 090t-7593. Punctelia ulophylla is reported from Norway for the first time, based on one new locality, and three herbarium specimens from 1970 named P. subrudecta. Three localities are now known in southwestern Norway. Yngvar Gauslaa, Department of Biologt and Nature Conservation, The Agricultural University of Norway, P. O. Box 5014, N-l432 As, Norway. The European sorediate Punctelia species with lecanoric acid were recently revised (van Herk & Aptroot 2000). Two closely related species were recognized in western and central Europe: Punctelia subrudecta (NVl.) Krog and P. ulophylla (Ach.) van Herk & Aptroot. They were found to occur sympatrically, often together on one tree, differing in e.g. the colour and pruinosity of the thallus margin and location of soralia (van Herk & Aptroot 2000). While reading the description of P. ulophylla, I recalled a Norwegian Punctelia subrudecta specimen from a new locality in Farsund, Vest-Agder in 1996. I was pu-zled by its greenish colour and strikingly marginal soralia in the field, but according to current literature at that time, the specimen could be nothing else but P. subrudecta. Having also a pruinose margin, the examined material fits well to the new description of P. ulophylla, as was confirmed by Aptroot and van Herk. Since P. ulophylla was recently recognised as a separate species, the Norwegian P. subrudecta collections in O (14 specimens), BG (8 specimens) and NLH (2 specimens) were checked. Three P. ulophylla specimens from two different localities were found among the studied specimens. The two specimens from fuOat in Rogaland were collected on Alnus glutinosa, during a lichenological excursion in 1970 (Krog l97l) by Osthagen and Hsiland; the third specimen (Nedstrand in Rogaland) was collected on Acer pseudoplatanus by R. Elven during the same excursion. Typical P. subntdecta specimens were simultaneously collected from both mentioned localities by H. Krog (fudal) and H. Osthagen (Nedstrand), and P. subntdecta was subsequently published as new to Norway (Krog l97l) with a description that fitted P. subrudecta only. As pointed out by van Herk & Aptroot (2000), the two species are closely related, and are separated by morphological characters only. In Norway, they occur sympatrically in two of the three known localities, as has been observed in other parts of Europe (van Herk & Aptroot 2000). Only two specimens have distinctly pruinose margins; the two others have pale margins. The morphological variation of the Norwegian sympatric populations should be studied in the field. Ecology The new P. ulophylla specimen from Kvile in Farsund was found on a Quercu.s stem dominated by parmelioid lichens, especially Parmelia sulcata and P. sacatilis, but Hypotrachyna revoluta, Parmotrema chinense and Cetrelia olivetorum were also present. Flavoparmelia caperata was observed in small quantities in the surroundings. The Quercus-
GRAPHTS SCRIPTA 12 (2000) dominated stand was grazed, and consisted of relatively young, apparently more or less even-aged trees. Lichen vegetation could be classified as acidophytic (Gauslaa 1985), with a lack of Lobarion and Xanthorion assemblages as defined by Barkman (1958). Also its occurrence on Alnus glutinosa in fudal suggests that P. ulophylla is somewhat less nutrient- or pH-demanding than P. subrudecta. Since it obviously can grow in young and relatively oligotrophic forests, it can be overlooked. Punctelia ulophylla appears to be more rare than P. subrudecta. For some reasons rare southern parmelioid lichens in Scandinavia, e.g. Parmotrema chinense, Hypotrachyna revoluta, Flavoparmelia caperata, Cetrelia olivetorum, Menegazzia terebrata, Punctelia subrudectA, P. ulophylla, tend to occur in clusters with more than one species present at the same locality. Since clusters of southern parmelioid species occur scattered and are often found in acidophytic young forests (Gauslaa 1985), these species are probably in some ways limited by some local climatic conditions rather than by poor dispersal. With this study, and the recent first Norwegian report of Parmelia submontana (Gauslaa 1999), the known number of parmelioid lichens is increasing along the southwestern coast of Norway. The P. ulophylla distribution is another example of an enigmatic patchiness of parmelioid species at their northern distribution boundary. Examined Punctelia ulophylla specimens: Norway. Vest-Agder: Farsund, Kvf,le, UTM(ED5O) LK 703507, 50 m a. s. 1., on Quercus stem in a Querczs forest, 1996, Y. Gauslaa 94228 (NLH), conf. A. Aptroot & K. van Herk. Rogaland: Hjelmeland, Ardal, Ved en bekk fra fudalsvatnet, Pe en stamme av svartor i svartorskog, 1970, K. Hsiland (O- L33139), det. Y. Gauslaa. Hjelmeland, Ardal, UTM(ED5O): LL 38 61, ph, Alnus glutinosa, 1970, H. Osthagen (O-Ll 1832), det. Y. Gauslaa. Tysvrr, Nedstrand, Tveit landbruksskole, UTM(EDSO): LL 17 83, alt. l0 m, p& Punctelia ulophylla neu, to Nor-way 13 platanlonn pn tunet, 1970, R. Elven (O- Ll 1835), det. Y. Gauslaa. Examined Punctelia subntdecta specimens: Norway. Vest-Agder: Farsund, Lista, Elkem NO, pi bok (stort gammelt tre i dker), 1971, H. Krog (O-Ll 1837). Farsund, Ellestranda, UTM(ED50): LK 632-634 507-512, i krone- partiet pi en Quercus petraea, 1977, O. Jslle (O-Ll 1838). Farsund, the farm Huseby, 58o5N, 6o46'F', alt. 25 m, On the trunk of old Acer pseudoplatanus in garden, 1993, R. Haugan & O. Pedersen H2931 (O-Ll 1839). Rogaland: Egersund, Between Hornesvatnet and Aygreivannet, On Quercus near the water fall, UTM(ED50): LK 284 863, 1993, Y. Gauslaa. (NLH). Haugesund, Fagerheim, 59'27\1, 5ol6'E, alt. 20 m, On Fraxinus excelsior, 1990: T. Tonsberg 13461 (BG- L21848), 13462 (BG-L25502, dupl. (O- Ll l83l). same locality on Acer pseudoplatanus, 13450 (BG-L21849, dupl. O-LI7809). Hjelmeland, Ardal, Mele bru, 1970, J. Hovda (O-L45 125). Ardal, UTM(ED50): LL 38 61,1970, H. Krog (O-Ll7808). HA, Lite elvesskk NW for Varhoug, UTM(ED50): LL 03 03, pf, stammen av Acer pseudoplatanus, 1977 , O. Jslle (O-Ll 1833). Hi" Nesheim, near road RV44, UTM(ED50): LL 028 086, On Acer pseudoplatanus near rock fence, 1995, J. I. Johnsen (BG-Ll5l59). He" Near Rognabekken, UTM(ED5O): LL 037 036, On Acer pseudoplatanus in A. pseudoplatanus forest, 1996, J. I. Johnsen (BG-L33588). Sandnes, NV for Vatneleiren, UTM(ED50): LL 14 29, pi stamme av et hasseltre, 1977, O. Jolle (O- Ll 1834). Stavanger, Forusstranden, On Quercus in old oak-wood, 1993, J. I. Johnsen, det. D. O. Ovstedal, 1994 (BG-L14245). Stavanger, Forusstranden, UTM(ED5O): LL 128 329, alt. 5-10 m, On Quercus in Quercus forest, 1994, J. I. Johnsen (BG-L34685). Tysvrr, Tveit Jordbruksskole, UTM(ED50): LL 17 83, Ph, Acer pseudoplatanus, 1970, H. Osthagen (O-L17807). Tysvrr, Tveit landbruksskole, UTM(ED5O): LL 17 83, p[ platanlonn pi tunet, 1980, J. Holtan-Hartwig & E. Timdal. 1537 (O-Ll 1836). Hordaland: Austrheim,
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Page 3 and 4: On the identity of Ocellularia atla
Page 5 and 6: The lichens on gneiss and diabase o
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Page 11 and 12: Influence of air-drying and storage
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Page 17 and 18: Moelleropsis nebulosa rediscovered
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Page 21 and 22: Eopyrenula septemseptata new to Swe
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Page 25 and 26: GRAPHTS SCRTPTA 12 (2000) E. leucop
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Page 29 and 30: GRAPHTS SCRTPTA 12 (2000) Cetraria
Page 31 and 32: Nya lavfynd frfln Halland och Smila
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GRAPHIS ScnIPTA

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