Hostname: page-component-586b7cd67f-t8hqh Total loading time: 0 Render date: 2024-11-26T03:07:52.208Z Has data issue: false hasContentIssue false
  • English
  • Français

Psoroma nivale (Pannariaceae, lichenized Ascomycota) a new species with dark, elongate squamules and bacilliform ascospores from arctic Québec, Canada

Published online by Cambridge University Press:  04 November 2019

Alan M. FRYDAY Open the ORCID record for Alan M. FRYDAY [Opens in a new window] ,
Arve ELVEBAKK ,
Frances L. ANDERSON  and
Jean Y. GAGNON
Alan M. FRYDAY
Affiliation:
Herbarium, Department of Plant Biology, Michigan State University, East Lansing, MI 48824, USA. Email: [email protected]
Arve ELVEBAKK
Affiliation:
Tromsø University Museum, University of Tromsø – the Arctic University of Norway, P.O. Box 5060 Langnes, NO-9037 Tromsø, Norway.
Frances L. ANDERSON
Affiliation:
273 Crouse's Settlement Rd, Upper LaHave, NS, B4V 0G4, Canada.
Jean Y. GAGNON
Affiliation:
Ministère des Forêts, de la Faune et des Parcs, Direction des Parcs Nationaux, 880 chemin Ste–Foy, local 2.5, Québec, QC, G1S 4X4, Canada.
Get access Rights & Permissions [Opens in a new window]

Abstract

The new species Psoroma nivale is described from an area of late snow-lie in the Keglo Bay area on the eastern side of Ungava Bay, northern Québec, Canada. It is superficially similar to P. hypnorum but has a dark, brownish black thallus colour without reddish hues, much-branched, proliferating squamules, thick paraphyses, distinct but inconspicuous IKI+ ascus tube structures, and characteristic elongate, bacilliform, often asymmetrical ascospores. The new species is compared with possible related taxa and its systematic position discussed. A key to the species of pannarioid lichens reported from arctic areas of North America is also provided.

Keywords

identification keylate snow-lieNunavikperisporetaxonomyvariable ascus structure
Type
Articles
Information
The Lichenologist , Volume 51 , Issue 5 , September 2019 , pp. 419 - 429
Copyright
Copyright © British Lichen Society 2019 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Ekman, S., Wedin, M., Lindblom, L. & Jørgensen, P. M. (2014) Extended phylogeny and a revised generic classification of the Pannariaceae (Peltigerales, Ascomycota). Lichenologist 46: 627–656.Google Scholar
Elvebakk, A. (1999) Bioclimatic delimitation and subdivision of the Arctic. In The Species Concept in the High North – A Panarctic Flora Initiative (Nordal, I. & Razzhivin, V. Y., eds): 81–112. Oslo: Norwegian Academy of Science and Letters.Google Scholar
Elvebakk, A. (2012) An overlooked Psoroma in Denmark and southern parts of Sweden. Graphis Scripta 24: 45–48.Google Scholar
Elvebakk, A. & Galloway, D. J. (2003) Notes on the heterogeneous genus Psoroma s lat. in New Zealand. Australasian Lichenology 53: 4–9.Google Scholar
Elvebakk, A. & Tønsberg, T. (2018) Psoroma spinuliferum (Pannariaceae), a new corticolous lichen species from Alaska with two different types of cephalodia. Bryologist 121: 166–173.Google Scholar
Elvebakk, A., Elven, R. & Razzhivin, V. Y. (1999) Delimitation, zonal and sectorial subdivision of the Arctic. In The Species Concept in the High North – A Panarctic Flora Initiative (Nordal, I. & Razzhivin, V. Y., eds): 375–386. Oslo: Norwegian Academy of Science and Letters.Google Scholar
Elvebakk, A., Robertsen, E. H., Park, C. H. & Hong, S. G. (2010) Psorophorus and Xanthopsoroma, two new genera for yellow-green, corticolous and squamulose lichen species, previously in Psoroma. Lichenologist 42: 563–585.Google Scholar
Elvebakk, A., Hong, S. G., Park, C. H., Robertsen, E. H. & Jørgensen, P. M. (2016) Gibbosporina, a new genus for foliose and tripartite, Palaeotropic Pannariaceae species previously assigned to Psoroma. Lichenologist 48: 13–52.Google Scholar
Fryday, A. M. & Thüs, H. (2017) The genus Xenolecia (Lecideaceae s. lat., Lecanoromycetidae inc. sed.), including a second species in the genus from Campbell Island, New Zealand. Lichenologist 49: 365–372.Google Scholar
Fryday, A. M., Ertz, D. & Jørgensen, P. M. (2017) Insights into the genus Austrella (Pannariaceae, Peltigerales), including a new species from the Falkland Islands. Lichenologist 49: 57–65.Google Scholar
Galloway, D. J. (2007) Flora of New Zealand Lichens. Revised Second Edition Including Lichen-Forming and Lichenicolous Fungi. Volumes 1 and 2. Lincoln, New Zealand: Manaaki Whenua Press.Google Scholar
Galloway, D. J. & Quilhot, W. (1998) Checklist of Chilean lichen-forming and lichenicolous fungi [Lista patron de los liquenes y hongos liquenicolas de Chile]. Gayana Botanica 55: 111–185.Google Scholar
Henssen, A. & Renner, B. (1981) Studies in the lichen genus Psoroma I. Psoroma tenue and Psoroma cinnamomeum. Mycotaxon 13: 433–449.Google Scholar
James, P. W. & Jørgensen, P. M. (2009) Fuscopannaria P. M. Jørg. (1994). In The Lichens of Great Britain and Ireland (Smith, C. W., Aptroot, A., Coppins, B. J., Fletcher, A., Gilbert, O. L., James, P. W. & Wolseley, P. A., eds): 411–413. London: British Lichen Society.Google Scholar
Jørgensen, P. M. (2000 [2001]) Survey of the lichen family Pannariaceae on the American continent, north of Mexico. Bryologist 103: 670–704.Google Scholar
Jørgensen, P. M. (2001) New species and records of the lichen family Pannariaceae from Australia. Bibliotheca Lichenologica 78: 109–139.Google Scholar
Jørgensen, P. M. (2003) Conspectus familiae Pannariaceae (Ascomycetes lichenosae). Ilicifolia 4: 1–79.Google Scholar
Jørgensen, P. M. (2004) Psoroma tenue var. boreale, an overlooked, widespread, arctic-alpine lichen. Graphis Scripta 15: 60–64.Google Scholar
Jørgensen, P. M. & Palice, Z. (2010) Additions to the lichen family Pannariaceae in Ecuador. Nordic Journal of Botany 28: 623–628.Google Scholar
Jørgensen, P. M. & Zhurbenko, M. (2002) Two new, remarkable, arctic species in the lichen genus Fuscopannaria (Pannariaceae, lichenized Ascomycetes). Bryologist 105: 465–469.Google Scholar
Ministère des Forêts, de la Faune et des Parcs (2019) Zones de végétation et domaines bioclimatiques du Québec. [WWW document] URL https://mffp.gouv.qc.ca/forets/inventaire/inventaire-zones-carte.jsp. [Accessed 20 May 2019].Google Scholar
Nelson, P. R. & Wheeler, T. (2013) Cephalodia found on Fuscopannaria viridescens. Lichenologist 45: 694–696.Google Scholar
Nordin, A. (1997) Ascospore structures in Physciaceae: an ultrastructural study. Symbolae Botanicae Upsalienses 32(1): 195–208.Google Scholar
Orange, A., James, P. W. & White, F. J. (2001) Microchemical Methods for the Identification of Lichens. London: British Lichen Society.Google Scholar
Park, C. H., Hong, S. G. & Elvebakk, A. (2018) Psoroma antarcticum, a new lichen species from the Antarctic and neighbouring areas. Polar Biology 41: 1083–1090.Google Scholar
Passo, A. & Calvelo, S. (2006) New reports and combinations in the family Pannariaceae (Lecanorales, lichenized Ascomycota). Lichenologist 38: 549–555.Google Scholar
Passo, A., Stenroos, S. & Calvelo, S. (2008) Joergensenia, a new genus to accommodate Psoroma cephalodinum (lichenized Ascomycota). Mycological Research 112: 1465–1474.Google Scholar
Timdal, E. & Tønsberg, T. (2006) Psoroma paleaceum comb. nov. the only hairy Psoroma in northern Europe. Graphis Scripta 18: 54–57.Google Scholar
Walker, D. A., Raynolds, M. K., Daniëls, F. J. A., Einarsson, E., Elvebakk, A., Gould, W. A., Katenin, A. E., Kholod, S. S., Markon, C. J., Melnikov, E. S., et al. (2005) The Circumpolar Arctic vegetation map. Journal of Vegetation Science 16: 267–282.Google Scholar