Hostname: page-component-cd9895bd7-jkksz Total loading time: 0 Render date: 2024-12-23T03:48:12.369Z Has data issue: false hasContentIssue false

Two new species of Syncesia (Arthoniales, Roccellaceae) from Africa

Published online by Cambridge University Press:  26 November 2009

Dorothee KILLMANN
Affiliation:
Institute for Integrated Natural Sciences, Department of Biology, University of Koblenz-Landau, Universitätstraße 1, D-56070 Koblenz, Germany.
Tahina RAZAFINDRAHAJA
Affiliation:
Département Botanique, Parc de Tsimbazaza, B.P. 4096, Antananarivo 101, Madagascar.
Emmanuël SÉRUSIAUX
Affiliation:
Plant Taxonomy and Conservation Biology, University of Liège, Sart Tilman B22, B-4000 Liège, Belgium.
Eberhard FISCHER
Affiliation:
Institute for Integrated Natural Sciences, Department of Biology, University of Koblenz-Landau, Universitätstraße 1, D-56070 Koblenz, Germany.

Abstract

Two new species of Syncesia are described, which differ from all other species of the genus by having more than 3-septate ascospores. Syncesia afromontana is characterized by a byssoid thallus and 7-septate ascospores, and is known only from the type locality in the Nyungwe Forest in Rwanda where it might be endemic. Syncesia madagascariensis is characterized by a crustose thallus and 5-septate ascospores, and is known only from the type locality in a montane forest in central Madagascar.

Type
Research Article
Copyright
Copyright © British Lichen Society 2009

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

Aptroot, A. (2008) A new Scoliciosporum from Madagascar. Lichenologist 40: 119122.CrossRefGoogle Scholar
Archer, A. W., Elix, J. A., Fischer, E., Killmann, D. & Sérusiaux, E. (2009) The lichen genus Pertusaria (Ascomycota) in Central Africa (Congo/Kivu, Rwanda and Burundi) and Western Kenya. Nova Hedwigia 88: 309333.CrossRefGoogle Scholar
Bjerke, J. W., Fischer, E. & Killmann, D. (2007) New records of the lichen genus Menegazzia from Africa. Cryptogamie Mycologie 28: 333337.Google Scholar
Bock, C., Hauck, M. & Fischer, E. (2007) The lichen flora of Rwanda: an annotated checklist. Willdenowia 37: 563575.CrossRefGoogle Scholar
Cáceres, M. E. d. S. (2007) Corticolous crustose and microfoliose lichens of northeastern Brazil. Libri Botanici 22: 1168.Google Scholar
Egea, J. M., Tehler, A., Torrente, P. & Sipman, H. (1995) Tania, a new genus with byssoid thallus in the order Arthoniales and new data on Sagenidiopsis. Lichenologist 27: 351359.CrossRefGoogle Scholar
Elix, J. A., Fischer, E. & Killmann, D. (2005) New saxicolous species of Hypotrachyna and Parmotrema (Parmeliaceae) from Rwanda. Lichenologist 37: 101104.CrossRefGoogle Scholar
Ertz, D., Christnach, C., Wedin, M. & Diederich, P. (2005) A world monograph of the genus Plectocarpon (Roccellaceae, Arthoniales). Bibliotheca Lichenologica 91: 1155.Google Scholar
Ertz, D., Lawrey, J.D., Sikaroodi, M., Patrick, M.G., Fischer, E., Killmann, D. & Sérusiaux, E. (2008) A new lineage of lichenized basidiomycetes inferred from a two genes phylogeny: the Lepidostromataceae with three species from the tropics. American Journal of Botany 95: 15481556.CrossRefGoogle Scholar
Ewango, C. E. N. (2002) Flore et végétation de la forêt naturelle de Nyungwe, Rwanda. Systematics and Geography of Plants 71: 10091015.CrossRefGoogle Scholar
Fischer, E., Dhetchuvi, J.-P. & Ntaganda, C. (2003) A new species of Impatiens (Balsaminaceae) from Nyungwe Forest, Rwanda. Systematics and Geography of Plants 73: 91101.Google Scholar
Fischer, E., Ertz, D., Killmann, D. & Sérusiaux, E. (2007) Two new species of Multiclavula (lichenized basidiomycetes) from savanna soils in Rwanda (East Africa). Botanical Journal of the Linnean Society 155: 457465.CrossRefGoogle Scholar
Fischer, E. & Hinkel, H. (1991) Anmerkungen zur Geographie, Flora, Fauna und Demographie. In Ruanda (Löber, U. & Rickal, E., eds): 1349. Landau/Pfalz.Google Scholar
Fischer, E. & Hinkel, H. (1992) Die Natur Ruandas. Mainz.Google Scholar
Fischer, E. & Killmann, D. (2008) Illustrated Field Guide to the Plants of Nyungwe National Park, Rwanda. Koblenz: Geographical Colloquia, Series Biogeographical Monographs 1.Google Scholar
Goodman, S. M. & Benstead, J. P. (2003) The Natural History of Madagascar. Chicago: The University of Chicago Press.CrossRefGoogle Scholar
Henssen, A., Renner, B. & Vobis, G. (1979) Sagenidium patagonicum, a new south American lichen. Lichenologist 11: 263270.CrossRefGoogle Scholar
Killmann, D. & Fischer, E. (2005) New records for the lichen flora of Rwanda, East Africa. Willdenowia 35: 193204.CrossRefGoogle Scholar
Orange, A., James, P. W. & White, F. J. (2001) Microchemical Methods for the Identification of Lichens.London: British Lichen Society.Google Scholar
Rogers, R. W. & Hafellner, J. (1987) Sagenidiopsis, a new genus of byssoid lichenized fungi. Lichenologist 19: 401408.CrossRefGoogle Scholar
Sérusiaux, E., Fischer, E. & Killmann, D. (2006) Nyungwea, a new genus of lichen with goniocyst-producing stipes from Rwanda and Uganda (East Africa). Lichenologist 38: 115121.CrossRefGoogle Scholar
Sérusiaux, E., Brand, A. M., Fischer, E., Killmann, D., van den Boom, P. P. G. & Ertz, D. (2009) A new species of Melanotopelia (Graphidaceae) from Africa. Lichenologist 41: 243247.CrossRefGoogle Scholar
Tehler, A. (1996) Syncesia (Arthoniales, Euascomycetidae). Flora Neotropica 74: 148.Google Scholar
Thor, G. (1990) The lichen genus Chiodecton and five allied genera. Opera Botanica 103: 192.Google Scholar